Discover Projects with 'Firebase' Expertise

Oferta para Freelancer - Conversión de Plataforma Lovable a Android

Busco un freelancer con experiencia en Lovable, aplicaciones web y Android para apoyar la conversión de una plataforma ya desarrollada en Lovable a una aplicación Android lista para publicar en Google Play.

Descripción del proyecto

Actualmente tengo una plataforma funcional desarrollada en Lovable que incluye:

* Formularios de registro de usuarios.
* Base de datos de personas y negocios.
* Panel de administración.
* Estadísticas e indicadores.
* Gestión de información sin registros duplicados.
* Descarga y exportación de bases de datos.
* Integración con WhatsApp y posibilidad de envío de mensajes.

Requerimientos

* Revisar la aplicación existente en Lovable.
* Conectar correctamente la base de datos (Supabase u otra solución recomendada).
* Convertir la plataforma en una aplicación Android.
* Generar archivo APK y AAB.
* Preparar la aplicación para publicación en Google Play.
* Configurar notificaciones push (si es posible).
* Garantizar que las actualizaciones de la plataforma web se reflejen en la aplicación móvil.
* Entregar documentación básica y capacitación sobre la administración de la aplicación.

Perfil buscado

* Experiencia demostrable en Lovable.
* Conocimientos en Supabase, Firebase o bases de datos similares.
* Experiencia publicando aplicaciones en Google Play.
* Portafolio de proyectos similares.

Propuesta

Por favor enviar:

* Experiencia relacionada.
* Portafolio o enlaces de aplicaciones desarrolladas.
* Tiempo estimado de ejecución.
* Valor de la propuesta.
* Recomendaciones técnicas para el proyecto.

El objetivo es contar con una plataforma web y una aplicación Android conectadas a una misma base de datos, permitiendo administrar toda la información desde un solo lugar.

Directoriojamundi.com es la existente

Skills: PHP, Java, Mobile App Development, Android, Database Management, Android App Development, App Development, Lovable

I'm looking for an experienced FlutterFlow developer who can help debug an existing FlutterFlow project, identify the root causes of issues, and implement clean, reliable fixes without introducing new problems.

The project is already built, so this is primarily a debugging and troubleshooting role rather than building an app from scratch.

What I Need Help With:
•⁠ ⁠Debugging existing FlutterFlow functionality
•⁠ ⁠Identifying the actual root cause of bugs
•⁠ ⁠Fixing UI, logic, navigation, and backend-related issues


Ideal Candidate:
Strong hands-on experience with FlutterFlow
•⁠ ⁠Good understanding of Firebase and backend integrations
•⁠ ⁠Comfortable working with existing projects and unfamiliar codebases
•⁠ ⁠Strong debugging and problem-solving skills
•⁠ ⁠Careful about making changes that could affect existing functionality

AI-Powered Personal Assistant Mobile App - iOS & Android (Flutter)

Overview

We are building an AI-powered personal assistant mobile app for iOS and Android. The app uses a conversational interface with RAG architecture, vector search, multi-modal capture (voice, camera, OCR, documents) and calendar integration. We are looking for an experienced mobile development agency or team with proven AI app experience.

This is a fixed-price, milestone-based engagement. Serious agencies only.

Technical Stack

Mobile: Flutter (iOS + Android - mandatory, no React Native)
AI: Claude API + OpenAI with provider abstraction layer
Vector DB: Pinecone Serverless
Backend: AWS (ECS Fargate, RDS PostgreSQL, ElastiCache)
Calendar: Cronofy or Nylas
Subscriptions: RevenueCat + Stripe
Analytics: Firebase + Mixpanel

What We Need From You

To be considered, your proposal must include:

Fixed development price
Operational cost per user model - showing estimated monthly cost at 1K, 5K and 10K active users with all assumptions clearly stated
Named team members with roles and years of experience

⚠️ CRITICAL REQUIREMENT: We will NOT consider web app portfolios, hybrid wrappers, or simple prototype projects. You must have native or high-performance cross-platform apps currently live in the app stores.
What We Are Looking For:
Strictly Mobile: A portfolio consisting exclusively of live iOS and Android applications.
Production/Enterprise Scale: Apps built for heavy user traffic, high security, or corporate environments.
AI-Powered or Data-Heavy: Experience building apps that use machine learning, heavy local databases, real-time data syncing, complex APIs, or advanced analytics.
Proven Social Proof: Your live apps must have active, real user reviews on the stores.To Apply, You MUST Provide:Direct App Store (iOS) links to live apps you have personally built or architected.Direct Google Play (Android) links to the same or similar live apps.A brief explanation of the AI features or heavy data pipelines implemented in those apps.Applications without live store links to production-grade mobile apps will be declined automatically.Timeline with milestone breakdown

Team Requirements

Dedicated Flutter developer(s) with minimum 3 years experience
Backend developer with AI/API integration experience
UI/UX designer with consumer mobile app experience - Figma samples required
QA engineer
Project lead as single point of contact

Engagement Terms

Fixed price contract
Milestone-based payments - you get paid when deliverables are approved, not by time
3 months post-launch support included
All accounts and IP owned by client from day one
NDAs required before project details are shared

Also provide Timeline and Budget

How to Apply

Send your proposal with the items listed above. Shortlisted candidates will receive a full NDA and detailed project brief before any further discussions.

We will not respond to proposals without live mobile app examples.

I’m looking for an experienced full-stack developer to improve AWriter, an existing writing application.

For now, improving the existing Platform Review is the priority. I’d like a separate fixed-price quote and estimated timeline for each item below so I can decide what to prioritize.

1. Improve Current Platform Review — PRIORITY

The current reviews aren’t always accurate, and some feedback can be confusing.

I want the reviews to be:

* Clearer and more consistent (chapter/outline analysis)
* More accurate and useful/actionable
* Able to remember relevant information from previously reviewed chapters

For example, if a writer reviews Chapter 1 and then Chapter 2, the system should use relevant context from Chapter 1 when reviewing Chapter 2 rather than treating each chapter completely independently.

Important: The review logic should NOT be the same for every platform. Each platform needs its own carefully defined review criteria and logic based on that platform’s requirements and expectations.

The architecture should also allow platform-specific criteria to be updated easily if a platform changes its requirements.

2. Add More Writing Platforms

Add additional platforms to the Platform Review with their own review criteria and logic.

Please provide pricing based on the number of platforms.

3. Improve In-App Guide / Onboarding

Make AWriter easier for new writers to understand, including:

* What each feature does
* How to use each feature
* How to get the best results from Platform Review

4. Story Editor — Future Feature

I’m considering a separate Story Editor for general writing feedback regardless of publishing platform.

It could identify issues such as structure, pacing, clarity, character consistency, repetition, weak areas, and writing fundamentals while helping writers improve their own work rather than generating their story.

Please quote this separately. Development is not approved yet.

5. Web/Laptop Version — Future Project

AWriter currently works on phones and tablets. I’d eventually like a web version for laptop/desktop users.

Please provide a separate fixed-price estimate and timeline. Development is not approved yet.

6. AI/API & Ongoing Costs

If AI is required, please explain:

* Which AI service/model you recommend
* Whether it can work with our existing Firebase/backend setup
* Estimated ongoing AI/API costs
* How costs would scale with usage

To Apply

Please send:

1. A separate fixed-price quote and estimated timeline for each item
2. 2–5 relevant apps/products you have worked on, with links if available
3. Your role in those projects
4. Relevant experience with AI/LLMs, backend systems, and existing production apps
5. Your recommended technical approach for improving the Platform Review

The Platform Review is the immediate priority. I want to understand the development cost and ongoing running costs before deciding what to approve.

I want to develop app like rapido but different from it like rapido is providing transportation services and I want to establish a app who give services of rentals of bike and cars.

Fixed an Android-only crash in a managed Expo / React Native app that started right after an Expo SDK upgrade, while iOS stayed fine. Read the Sentry crash logs to isolate the failing native module, reproduced it on a real Android device with an EAS build, and traced the root cause to the Expo SDK migration — not the app code. Delivered a clean, installable Android build via EAS, plus a plain-English write-up of what broke so the team understood their own app. Also flagged the dependencies and native modules most likely to break on the next Expo SDK upgrade, without touching them. Expo and React Native debugging, Android crash fixing, Expo SDK migration, EAS Build, Sentry crash analysis, managed workflow. 𝓗𝓾𝓶𝓪𝓷 𝓼𝓽𝓪𝓻𝓽 𝓢𝓮𝓷𝓲𝓸𝓻

Tools & stack: Expo, React Native, EAS Build, Expo SDK, Android, iOS, Sentry, TypeScript, native modules.
Start your application with the word Full-stack.

To apply, please record a short 30-second video explaining why I should choose you for this fix.

I have already built a mobile app in Google AI Studio and now need it live so customers can start using it right away. The build itself is complete; what’s missing is a smooth, reliable deployment.

Here is what I need from you:
• Set up an appropriate hosting environment (Google Cloud, Firebase, or a comparable solution) and link it to the current AI Studio project.
• Configure the mobile build so it can be accessed on both Android and iOS devices without installation roadblocks.
• Handle any required backend, database or API connections so user interactions are saved and synced properly.
• Implement basic security, performance tuning, and usage analytics so I can track customer engagement from day one.
• Provide a brief hand-off guide so I can do future content or model updates on my own.

When you apply, please highlight relevant experience deploying mobile apps (especially those originating from Google AI Studio, Firebase, or similar low-code tools). A short note describing one or two comparable launches you have handled is enough—I am most interested in proven, real-world experience rather than lengthy proposals.

Once the app is publicly reachable, stable, and documented, the project is complete.

Skills: PHP, Mobile App Development, iPhone, Android, Backend Development, Mobile Development, Database Management, API Integration

We are looking for one experienced full-stack engineer to help us build a working mobile prototype for a computer-vision-based application.

We already have an existing web-based frontend that can be used as a reference for the product experience. The goal of this engagement is to turn the core product concept into a functional mobile prototype, including the frontend, backend, database, and computer vision integration.

This is not intended to be a production-ready application at this stage. We want to move quickly, prove the core experience, and establish a solid foundation that can be expanded later.

What You Would Own

You would be the primary engineer responsible for the prototype end-to-end, including:

Building the mobile application
Setting up the backend/API
Setting up the database and storage as needed
Implementing camera/photo/video functionality
Integrating the computer vision workflow
Connecting the frontend and backend
Deploying the prototype/backend
Providing a working build that we can test on a physical phone
Basic testing and bug fixing
Documentation and handoff of the codebase

We expect all code to be maintained in GitHub repositories/accounts controlled by us.

Ideal Background

We are looking for someone who has personally built complete applications, not someone who specializes only in one part of the stack.

Strong experience with several of the following is preferred:

React Native / Expo
React / TypeScript
Python
FastAPI, Django, Flask, Node.js, or similar backend frameworks
Computer Vision
OpenCV
YOLO or similar object detection / vision models
PyTorch or TensorFlow
REST APIs
PostgreSQL / Supabase / Firebase or similar
AWS, GCP, or comparable cloud infrastructure
Mobile camera / image / video handling
Git / GitHub

Experience using modern AI development tools such as Claude Code, Cursor, Codex, or similar tools is also a plus.

Project Goal

The primary objective is to have a working end-to-end prototype that can be demonstrated on a mobile device.

We care more about getting the core workflow functioning reliably than building every feature, handling every edge case, or making the application production-ready.

We expect the selected engineer to help us make practical technical decisions about what should and should not be included in the initial prototype.

We are looking for an experienced mobile app developer to build a modern, scalable Beauty & Wellness Booking Platform that allows customers to discover beauty and wellness professionals, explore their services, check availability, book appointments, and manage their bookings from one convenient application.

The platform will support multiple service providers, each with their own profile, services, availability, bookings, and business information. The goal is to create a smooth experience for customers while providing providers with the tools they need to manage their businesses efficiently.

Core Features
Customer App
Registration and secure login
Customer profile management
Browse beauty and wellness categories
Search and filter providers and services
Provider profiles and service details
Service pricing and duration
Real-time availability
Appointment booking
Booking confirmation and management
Rescheduling and cancellation
Secure online payments
Booking history
Favorites/saved providers
Reviews and ratings
Push notifications
Profile and account settings
Provider App
Provider registration and onboarding
Profile and business information
Provider verification
Service creation and management
Pricing and service duration
Availability and working hours
Appointment calendar
Booking management
Accept/reject booking requests where applicable
Cancellation management
Earnings and payout information
Customer information related to bookings
Reviews and ratings
Subscription/plan management
Notifications
Admin Dashboard
Customer management
Provider management
Provider verification and approval
Category management
Service management
Booking management
Commission configuration
Payment and payout monitoring
Refund management
Subscription management
Review and moderation management
Dispute management
Notifications
Platform reports and analytics
Technical Requirements

The application should be built using a scalable custom development approach.

Preferred stack:
React Native — iOS & Android
Node.js + Express.js — Backend
MongoDB — Database
Socket.IO — Real-time functionality where required
JWT/OAuth/Firebase Auth — Authentication
Stripe/PayPal — Payment integration
Firebase Cloud Messaging — Push notifications
AWS / Google Cloud / DigitalOcean — Cloud infrastructure
AWS S3 / Cloudinary — Media storage

The final technology architecture can be refined based on the confirmed requirements and development plan.

Development Scope
The project will cover the complete development lifecycle, including:

Application architecture
Backend/API development
Mobile application development
Database implementation
Third-party integrations
Payment integration
Authentication and authorization
Booking and availability logic
Notifications
Provider and customer workflows
Admin functionality
Testing and bug fixing
Performance optimization
Security implementation
Production deployment
App Store and Google Play preparation
Expected Outcome

The final deliverable should be a fully functional, production-ready beauty and wellness booking platform, not simply a UI prototype.

The application should provide a reliable experience for customers, service providers, and administrators, with a scalable architecture that can support additional services and users as the platform grows.

Development will be organized into structured milestones so that functionality can be implemented, reviewed, tested, and refined progressively throughout the project.

I’m looking to develop an app that tracks where the mailman is so people can better estimate when mail will arrive. I want this to start out locally, but expand nationwide eventually. For now I’ll like it to be able to track all of Orlando, Fl and surrounding areas within 50 miles. I’ve attached a physical prototype idea for your reference.

Attendance App – Push Notification, Live Location, Chat, Voice & Video Calling

Project Title

Add Push Notification, Live Location, Employee Chat, Voice & Video Calling to Existing Android Attendance App

Project Description

I already have a working Attendance Web App + Android App with complete source code.

Current technology includes:

- React
- TypeScript
- Capacitor Android
- Backend/API
- Database
- Existing employee/admin attendance system

I need an experienced developer to add the following new features to the existing system.

This is not a new app development from scratch.

I will provide the existing complete source code to the selected developer.

1. Native Push Notifications

Add a complete Android push-notification system.

Admin should be able to send notifications to:

- Individual employee
- Selected employees
- Team/Department
- All employees

Requirements:

- Notification should work when app is open
- Notification should work in background
- Notification should work when app is closed
- Tapping notification should open the relevant app screen
- Notification history
- Read/Unread status
- Admin sent-notification history

Please mention which technology will be used, such as Firebase Cloud Messaging or another suitable solution.

All accounts/API credentials must be under my ownership.

2. Live Employee Location Tracking

Add background/live location tracking for selected employees.

Requirements:

- Location update approximately every 3–5 minutes
- Tracking should work while screen is locked/backgrounded, subject to Android restrictions
- Battery usage must be optimized as much as technically possible
- Admin can enable/disable tracking employee-wise
- Tracking can start after employee Check-In
- Tracking should stop after employee Check-Out
- Admin can see employee current/last location
- Show location on map
- Show last update date/time
- Maintain location history
- Date-wise movement history/report
- Employee-wise route/history report

Please follow Android/Google Play background-location requirements.

Do not promise completely invisible background tracking if Android requires a foreground notification. The implementation must follow Android rules.

Location data must be stored only in my authorized backend/database.

3. Internal Employee Chat

Add an internal messaging system.

Required:

- One-to-one chat
- Group chat
- Department/team groups
- Admin-created groups
- Text messages
- Photos/images
- Documents/files
- Voice messages
- Message timestamp
- Delivered status
- Read status
- New-message push notification
- Conversation search

Only authorized employees should be able to communicate.

4. Internal Voice Calling

Add employee-to-employee voice calling.

Required:

- Individual voice calls
- Group voice calls
- Incoming call screen/notification
- Accept/Reject
- Mute/Unmute
- Speaker
- Call duration
- Missed calls
- Call history

5. Internal Video Calling

Add video calling within the employee app.

Required:

- Individual video calling
- Group video calling
- Front/Rear camera switching
- Camera On/Off
- Microphone Mute/Unmute
- Speaker
- Incoming call screen
- Accept/Reject
- Call history

Calling Technology

Developer should recommend a reliable solution such as:

- WebRTC
- LiveKit
- Jitsi
- Agora
- Twilio
- 100ms

or another suitable technology.

Before development, clearly mention:

- Technology to be used
- Free/Paid status
- Monthly/usage charges
- Voice/video minute limits
- Maximum group-call participants
- Whether self-hosting is possible
- Whether the service can be changed later

Important Ownership Requirement

I must have 100% ownership and control of:

- Complete source code
- Backend code
- Database
- Android project
- API credentials
- Firebase/project accounts
- Voice/video service accounts
- Signing key
- Configuration files

There must be no dependency on the developer's personal account, domain, server, API key or subscription.

Existing App Must Remain Safe

Developer must:

- Review the existing source first
- Keep all existing attendance features working
- Not remove existing features
- Not change the live production system without approval
- Perform development/testing safely
- Take backup before any approved deployment changes

Deliverables

Final delivery must include:

- Updated complete source code
- Updated Android project
- Testing APK
- Final APK
- Play Store-ready AAB
- All backend/API changes
- Database changes/migrations
- Push-notification configuration
- Voice/video configuration
- Build instructions
- Deployment instructions
- All account/API ownership details
- Bug fixing before final acceptance

Before Bidding, Please Answer

1. Have you worked with React + TypeScript + Capacitor Android?
2. Have you implemented Android background GPS tracking?
3. Have you implemented Firebase/FCM push notifications?
4. Which technology do you recommend for chat?
5. Which technology do you recommend for voice/video calls?
6. Can voice and video support both individual and group calling?
7. What third-party services will be required?
8. What will be the expected monthly/usage cost?
9. Can all accounts be created under my ownership?
10. What is your total development cost?
11. What is your realistic delivery timeline?
12. How many days of post-delivery bug support will you provide?
13. Please share examples of similar applications you have developed.

Please bid only if you can work with the existing source code and provide complete editable source code and full ownership after completion.

Skills: Mobile App Development, Android, Mobile App Testing, Backend Development, Twilio, Database Management, Agora, API Integration, WebRTC, Jitsi

We’re looking for an **experienced AI Application Developer** to work with us on a **part-time freelance basis**.

The ideal candidate has strong hands-on experience building production-ready AI-powered web and/or mobile applications and integrating modern AI models and APIs into real products.

### Responsibilities

* Build and develop AI-powered applications from concept to production
* Integrate LLMs and AI APIs such as OpenAI, Anthropic, Gemini, or similar
* Develop AI agents, workflows, chat interfaces, and automation features
* Build reliable backend systems and APIs
* Work with databases, authentication, payments, and third-party integrations
* Improve AI response quality, speed, reliability, and cost efficiency
* Debug, test, deploy, and maintain production applications
* Collaborate with us on product and technical decisions

### Requirements

* Proven experience building and launching AI applications
* Strong experience with **LLMs, AI APIs, prompt engineering, and AI workflows**
* Strong development skills in **Python, JavaScript/TypeScript, Node.js, React, Next.js**, or similar technologies
* Experience with databases such as PostgreSQL, Supabase, Firebase, or similar
* Experience deploying applications to AWS, Google Cloud, Vercel, or similar
* Good understanding of APIs, authentication, security, and scalable architecture
* Ability to work independently and communicate clearly
* Strong problem-solving skills and attention to detail

### Nice to Have

* Experience with AI agents and multi-agent systems
* RAG and vector databases
* LangChain, LlamaIndex, CrewAI, or similar frameworks
* Voice AI, image generation, computer vision, or multimodal AI
* SaaS product development experience
* Stripe or other payment integrations

### Work Arrangement

* **Part-time freelance position**
* Flexible working hours
* Remote
* Potential for an ongoing, long-term collaboration
* Workload may vary depending on current projects

### When Applying

Please include:

* Examples of **AI applications you have personally developed**
* Links to live products, portfolio, GitHub, or case studies
* A short explanation of your role in each project
* The AI models, frameworks, and technologies you have worked with
* Your availability per week
* Your hourly rate

**Important:** We are looking for someone with real production experience, not only AI tutorials or experimental projects.

We are looking for an experienced iOS Firebase developer to fix a Firebase Phone Authentication issue in our existing app.

Phone Authentication was working earlier but suddenly stopped working without any intentional changes to the app or Firebase configuration.

We are currently using older Firebase libraries:

pod 'Firebase/Auth', '6.33.0'
pod 'Firebase/Messaging', '6.33.0'
pod 'Firebase/Database', '6.33.0'
pod 'Firebase/Storage', '6.33.0'
pod 'Firebase/Functions', '6.33.0'
pod 'Firebase/Firestore', '6.33.0'
pod 'Firebase/AdMob', '6.33.0'
pod 'FirebaseUI/Phone', '8.5.1'

The issue may be related to this Firebase GitHub issue:
https://github.com/firebase/firebase-ios-sdk/issues/13479

We suspect the old Firebase libraries may be causing the issue and update only the required libraries/classes.

Let me know

We are seeking an experienced, hands-on Senior App Analyst on a part-time contract basis (1 day per week for a minimum of 3 months) to act as the technical authority across our native mobile app estate (iOS and Android) for a FTSE 250 Financial Services brand and its affiliated Community Interest Company (CIC).

The role will take ownership of app health, instrumentation, and diagnostics — from native plugin code to analytics, crash trends, and in-app messaging. This position is suited to a proven senior practitioner with a strong public technical track record, such as a top 1% Stack Overflow standing, who can operate autonomously with minimal ramp-up.



Key Duties and Responsibilities

Develop, maintain, and troubleshoot native plugins and bridge code for both Android (Kotlin/Java) and iOS (Swift/Objective-C) platforms.

Build and maintain Cordova or comparable hybrid framework plugins, such as Capacitor, to support in-app messaging and related native functionality.

Diagnose and resolve platform-specific issues arising from native/web bridge integrations.

Review and support native build pipelines to ensure plugin changes integrate cleanly with existing CI/CD processes.

Implement, configure, and maintain the Firebase SDK across both app platforms, ensuring accurate and consistent event tracking.

Own the GA4 for Firebase implementation, including event schema design, tagging QA, funnel and engagement reporting, and data validation.

Configure and monitor Crashlytics, triaging crash and non-fatal error reports, identifying root causes, and prioritising fixes with the engineering team.

Set up and maintain in-app messaging capabilities via Cordova/Capacitor plugins or native SDKs, supporting lifecycle, engagement, and retention campaigns.

Produce regular app health reports covering crash-free rates, key events, funnel performance, and messaging engagement for both the FTSE 250 brand and the CIC.

Design, build, and maintain automated test suites covering native app functionality, analytics event firing, and plugin behaviour.

Support release QA cycles, ensuring analytics, crash reporting, and messaging instrumentation are validated prior to each release.

Identify gaps in test coverage and recommend practical automation improvements appropriate to a part-time engagement.

Work within existing Agile/DevOps ceremonies and delivery practices, contributing effectively despite limited weekly capacity.

Partner with product owners, engineers, and data teams across both organisations to prioritise instrumentation and analytics work.

Document technical decisions, implementation patterns, and known issues clearly to ensure continuity between weekly sessions and support handover at the end of the contract.

Advise on data quality, tagging governance, and best practices for mobile analytics across the app estate.

Where relevant, extend reporting into BigQuery, linking Firebase/GA4 export data to broader data warehouse and BI initiatives. (Optional/desirable)

Bring domain awareness of Finance apps, including FCA-regulated app considerations, secure authentication patterns, and transaction event tracking, to inform best practices. (Optional/desirable)



Skills and Experience

Demonstrable senior-level experience developing native plugins and bridges for both Android and iOS.

Strong hands-on experience with the Firebase SDK, GA4 for Firebase, and Crashlytics in production apps.

Experience building or maintaining Cordova or similar plugins, such as Capacitor or PhoneGap, specifically for in-app messaging.

Solid understanding of software delivery lifecycles, including Agile, DevOps, or comparable frameworks.

Practical experience with QA test automation for mobile applications.

Proven ability to work independently and deliver value within a limited weekly time allocation.

A strong public technical reputation — ideally a top 1% ranked developer on Stack Overflow, or equivalent verifiable evidence of deep, community-recognised expertise — is highly desirable.

Experience with BigQuery, particularly Firebase/GA4 export datasets. (Optional/desirable)

Prior experience working on Finance sector apps, ideally within a regulated environment. (Optional/desirable)

Experience working across two stakeholder organisations or contexts simultaneously, such as a corporate brand and a charitable/CIC arm. (Desirable)

Familiarity with FTSE 250 or large-enterprise governance, security, and release-approval processes. (Desirable)



Salary Range

Hourly Rate: Dependent on experience



Benefits

Work/life balance with a flexible schedule and remote work available.

Employee social and fundraising events.

Opportunity to work with some of the biggest brands in the world, such as NatGeo, Rentokil, and ITV.

We're building an original American-style crossword game for iOS and Android in Flutter, launching in five languages.

The build covers the crossword engine and UI, a puzzle generation system, a backend and admin panel, progression with coins and streaks, a leaderboard, offline play, ads and in-app purchases, and store submission. The quality bar is high, so think polished casual puzzle titles from the bigger studios, especially on animation and smoothness.

***** This is a freelancer role, not an agency contract. Agencies need not apply. *****

What we need:

1. Solid Flutter and Dart experience with published apps
2. Comfortable owning implementation day to day, not waiting to be told what to type
3. Good instincts for UI polish and animation feel
4. Firebase experience
5. Can read a stack trace and debug independently
6. Available throughout the course of the project

Nice to have: puzzle or casual game experience, AdMob or AppLovin, in-app purchases, Supabase or similar.

When you apply, tell me:

1. Two or three apps you've built in Flutter, with store links
2. The hardest bug you've tracked down recently and how you found it
3. Your weekly availability and hourly rate
4. Whether you've worked on games or animation-heavy UI before

A full project scope document will be shared with shortlisted candidates.

# Full-Stack Developer - Build the NurseFlex Platform MVP (fast turnaround)

**Budget:** £2,000 (fixed price, paid in full on completion and sign-off of the working product)
**Timeline:** 2 weeks maximum. Onboarding + document upload must be **live by end of this week.**
**Type:** One-off project with strong potential for ongoing work as we scale.

---

## About NurseFlex

NurseFlex is a next-generation clinical workforce platform for UK health and social care. It connects nurses, healthcare assistants and support workers with flexible shifts, and gives care homes, hospitals and agencies one system to staff safely and reduce agency spend. It is a premium, mobile-first tech product, not a traditional agency.

We already have a **complete, high-fidelity front-end prototype** (full marketing site, a 6-step professional registration flow, an operations dashboard, and a referral calculator) built in HTML, CSS and JavaScript with a shared design system. **We hand this to you as the visual and UX foundation.** You build the working product behind it.

## Why this is urgent

We had **50+ healthcare professionals sign up in under 8 hours** and demand is climbing fast. We need them able to **create an account, upload their documents, get verified, work, and get paid** with as little friction as possible. Speed matters, but this involves people's identity documents and their money, so it must be secure and correct.

---

## Core principle: onboarding in seconds, not weeks

Clinicians are busy. Long, repetitive sign-up steps and outdated verification methods (like screen-recorded videos of documents) waste hours and cause many professionals to drop off before finishing. NurseFlex replaces this with a **verified digital badge**: instant, tamper-proof proof of a worker's identity and credentials, drawn from live metadata and secure links to official registries rather than uploaded screenshots. The aim is to clear a worker in **seconds, not weeks**, and to make that verification portable.

- **Save time** — cut the long steps that make busy clinicians quit before finishing.
- **Stop fraud** — screen recordings and paper documents are easy to fake; the badge verifies against official registries.
- **Instant checks** — a single tap or QR-code scan proves a worker's active licence right away.
- **Use anywhere** — once verified, the badge works across health platforms without needing a new check each time.

Every onboarding decision should serve these four goals: fast, fraud-proof, instant, and portable. Where an official registry (e.g. the NMC register) offers a lookup or API, integrate it; design the badge so more registries can be added over time, and so it can be shared/verified by other platforms.

---

## Scope

We want the core value of the platform working end to end. It is delivered in two milestones so the urgent part ships first.

### Milestone 1 — LIVE BY END OF THIS WEEK (the unblocker)
1. **Auth**: secure sign-up, log-in, password reset, sessions.
2. **Professional onboarding** (design provided as a 6-step wizard): account, professional profile (role, NMC/HCPC number, experience, specialties, right to work), availability.
3. **Secure document upload**: photo ID, right to work, DBS, professional registration, proof of address. PDF/JPG/PNG, show status, allow replace. Progress saved so users can finish later.
4. **Database + secure file storage** (encrypted at rest and in transit, no public document URLs).
5. **Admin verification + Verified Digital Badge**: an admin view to list submissions, view/download documents, and set status (Pending / Verified / Rejected), with search and filter. Verification should use secure links or lookups to official registries (e.g. the NMC register) where available, not screen-recorded videos. On approval, the professional is issued a **verified digital badge** (see Core principle): QR-scannable and shareable, tamper-proof, showing live verification status, and designed to be portable across platforms.
6. **Confirmation email** on submission, and a "You're verified" email when approved.
7. **Deployed to production** on our domain with HTTPS.

### Milestone 2 — WITHIN 2 WEEKS (the platform value)
Deliver the USPs from our website as working features:

8. **Verified Pro status**: the verified digital badge (from Milestone 1) marks the account as a Verified Pro and unlocks the features below. Verification should not need to be repeated each time; the badge carries it.

9. **Wallets** (this is central, modelled on the Trading 212 experience — a clean balance figure that is real and accurate, not cosmetic):
- **Earnings wallet** — shows the professional's real earned balance, calculated from tracked hours and shifts worked (hours × agreed rate). Clearly separates "available to withdraw" from pending/unapproved amounts.
- **Referral wallet** — a separate real balance that accrues referral commission (per our referral model on the Partners page).
- Each wallet shows the balance, available vs pending, and a full transaction history.
- **Withdrawal is request-based.** The professional taps Withdraw; the system generates a report/CSV of the exact hours and shifts that make up the requested amount and routes the request to our internal accounts team. Status flow: **Requested → Under review → Approved → Processing → Paid.**
- **Funding is handled by our factoring company for now** — not a direct NurseFlex bank payout, and not a self-serve instant provider. You build the withdrawal request, the hours/shift CSV, the accounts review/approval workflow, and the status tracking; the actual transfer is executed by our accounts/factoring process and recorded back on the platform. (An automated payout provider such as Stripe Connect can be a later phase.)
- Withdrawals are released in **3 to 5 business days**, clearly communicated in the UI.
- **Accounts/admin view**: see each withdrawal request with its underlying hours CSV, approve or reject, and mark as paid.

10. **Shift marketplace**: browse available shifts with pay, distance, venue rating and start time; one-tap apply; booked shifts appear in the professional's schedule.

11. **Earnings dashboard**: weekly/monthly earnings, projected income (Smart Salary Prediction), completed-shift history feeding the earnings wallet.

12. **Reliability score** and **CPD/Academy** entry points as on the designs (can be lightweight in this phase; the wallet and marketplace are the priority).

### Explicitly for a later phase (not required now)
Full provider and agency portals, the operations command centre, and advanced analytics. Designs exist; these are follow-on work.

---

## What we provide
- The complete front-end prototype (all pages, shared `styles.css`, `app.js`, design system, brand colours and logo).
- All copy, field lists and the required document list.
- Domain and accounts for hosting, storage and the payments provider.
- Fast responses on questions so you are never blocked.

## Tech stack
Flexible — propose what you can ship reliably and securely at speed. A backend-as-a-service (e.g. Supabase or Firebase) with React/Next.js is a good fit for this timeline; use what you are fastest and safest with. **This handles sensitive personal data (ID, DBS) and real money, so security, a reliable transaction ledger, and UK GDPR awareness are non-negotiable.**

## Money-handling requirements (read carefully)
- Wallet balances must be an accurate, auditable ledger of earned pay from tracked hours (store amounts in pence/integers, no floating-point money bugs).
- The displayed balance must be **real and correct at all times** — like Trading 212, the figure is the actual money owed, not an estimate.
- Withdrawals are **request-based and reviewed by our accounts team** against the underlying hours before payment. The platform must generate the hours/shift CSV that justifies each request and track it through the status flow.
- Payment is funded via our **factoring company** for now, so no self-serve bank-transfer or KYC payout integration is required in this phase. The request → accounts review → approved → paid workflow and its records must be solid and auditable.
- Never expose one user's wallet, documents or data to another.

## Deliverables
- Working, deployed platform meeting both milestones.
- Admin dashboard for verification and (basic) wallet oversight.
- Source code in a Git repo we own, with a README (setup, env vars, deploy, and how payouts are configured).
- Handover call and 7 days of post-launch bug fixes.

## Acceptance criteria
- A professional can sign up, upload all documents and submit in a few minutes on mobile and desktop (Milestone 1), with clearly fewer steps than a traditional sign-up.
- Admin can verify a professional; on approval a verified digital badge is issued that is QR-scannable, tamper-proof and shows live verification status.
- Verification unlocks the wallet and marketplace, and does not need to be repeated for each new action.
- Earnings and referral wallets show real, correct balances and full history based on tracked hours.
- A professional can request a withdrawal; the system produces the hours/shift CSV and routes it to accounts; the request moves Requested → Under review → Approved → Processing → Paid and releases in 3–5 business days.
- The balance shown always matches the actual money owed (Trading 212-style accuracy).
- Live site matches the provided design and is responsive on current Chrome, Safari and mobile.
- No document or wallet is accessible without authentication.

## Timeline & payment
- **Milestone 1 (end of this week):** onboarding, uploads, admin verification + verified digital badge, deployed. (Delivery checkpoint — the piece that unblocks our professionals.)
- **Milestone 2 (within 2 weeks):** wallets (earnings + referral), withdrawal-request/accounts-approval flow with hours CSV, marketplace, earnings dashboard.
- **Payment: £2,000 total, paid in full on completion and sign-off of the working product** against the acceptance criteria below. The milestones above are delivery checkpoints, not staged payments.
- If any part genuinely cannot be done safely within this budget or timeline, tell us upfront and propose the smallest safe version plus what a fast follow-up would need.

## Required skills
- Full-stack web development (front-end integration, backend, database).
- Secure file upload/storage and authentication/access control.
- **Accurate wallet/ledger logic and reporting** (transaction ledger, hours-based balances, CSV export, admin approval workflow). Automated payout-provider integration is a plus for later phases.
- Responsive build from an existing design; clear communication; reliable, fast delivery.

## Nice to have
- Healthcare, fintech, marketplace or GDPR-sensitive experience.
- Prior work with payouts/escrow or two-sided marketplaces.

## IP, confidentiality and data protection
All code, assets and data are the property of NurseFlex. The freelancer keeps everything confidential, transfers full ownership on final payment, and signs a short contract and NDA before access is granted. Sensitive documents and payment data must be handled to UK GDPR standards.

---

### To apply, please share
1. 2–3 relevant projects (ideally with secure uploads, wallets/payouts or marketplaces).
2. Your proposed stack and hosting, and how you would build the wallet ledger plus the withdrawal-request and accounts-approval workflow.
3. A day-by-day plan to hit Milestone 1 by end of this week and Milestone 2 within 2 weeks.
4. Exactly how you will secure documents and handle money safely.
5. Anything in scope you believe is unrealistic for the budget/timeline, and your recommended alternative.

Mevidual is a skincare-tech company building an AI-powered mobile app that helps users navigate skincare routines, ingredients, and personalized recommendations through a conversational AI chat built on Flutter and OpenAI. We're scaling up investment in this feature — we now consider the AI chat the most important part of our product — and we're looking for a tech rookie, postgraduate preferred, fresh out of university, who wants a real, hands-on entry point into modern AI-integrated app development.

You'll work directly under the guidance of our AI Content & Product Lead, who owns the direction and quality of the AI chat experience, and alongside our existing development team. This is a mentored role designed to grow: as the AI chat area expands, so does the team around it, and so does your role in it.

What you'll work on

Migrating our OpenAI integration from the deprecated Prompt-object API to the current instructions-based approach (Responses API), following an existing Firestore-driven configuration pattern already in place.
Implementing new AI chat features from our active backlog: personalized greetings (already shipped, you'd build on this pattern), ingredient- and product-based search through the chat, routine recommendations, a feedback system, and follow-up notifications.
Working with Firebase/Firestore (data models, Cloud Functions) and Flutter (GetX state management) in our existing Flutter codebase.
Testing and debugging our OpenAI API calls directly (Postman or similar) before and while they're wired into the app — you should be comfortable poking at an API on its own, not just through the client.
Helping automate parts of our current AI content pipeline (e.g. the manual knowledge-base upload process our AI Content Lead runs today) using Python scripting.
Contributing ideas and early implementation around AI agents/automations as we expand beyond a single chat assistant (e.g. automated workflows, agentic tooling) — this is a growth area for the role, not a day-one expectation.
Collaborating closely with our AI Content Lead on translating content/knowledge-base needs into working features — you write the code, she owns the "what" and "why."
Contributing to security hardening of the AI integration (e.g., moving API calls behind a backend proxy) as one of your first tasks.

Tech stack

Flutter/Dart, Firebase (Firestore, Cloud Functions, Auth), OpenAI API (Responses API, Vector Store/File Search), GetX, Python, Postman, Git.

What we're looking for

A recent postgraduate or fresh-from-university candidate (computer science, software engineering, or related — self-taught with strong fundamentals also welcome) who wants to build real-world experience rather than someone already senior.
Familiarity with Python and comfortable using Postman (or similar) to test and debug API calls directly.
Some exposure to automation and/or AI agent concepts — personal projects, coursework, or self-study all count; we're not expecting production experience here.
Comfortable learning quickly and working directly with a non-technical content lead to translate requirements into code.
Genuine interest in AI/LLM-integrated products, not just traditional app development.
Reliable, communicative, and comfortable with a remote, async-friendly working style.

What we offer

Direct mentorship and a clear growth path — this is the ground floor of what we expect to become a small dedicated team for the AI chat product area.
Ownership over real, shipping features from day one, not busywork.
[Placeholder — please fill in: hours/week to start, e.g. 20–30h/week; contract type — hourly vs. fixed-price; budget range]

How to apply

Please include: any personal or academic projects involving APIs/AI integration (even small ones), your availability, and one sentence on why you're interested in AI-integrated app development specifically.

My mobile app—built around Google’s AI services—is already taking shape, but only on the front-end side. I have functional screens and basic flows coded in a cross-platform framework; what is missing is the server layer that ties everything together. I now need a developer who can complete the backend integration and push the finished product live on both the App Store and Google Play.

Here is what’s left to do:
• Connect the existing front-end to a robust backend (Firebase, Google Cloud, or another secure stack you are comfortable with).
• Implement any required API endpoints so my AI features run smoothly and fast.
• Configure build settings, signing, and store assets, then guide the app through the review process on iOS and Android until it is approved.

I will provide full source code, UI assets, and detailed API documentation for the AI modules. You will return the updated codebase, working builds, and proof of successful deployment. If you have experience shipping AI-driven apps on both platforms and can move quickly, I’d love to hear how you would tackle the final stretch.

Skills: Mobile App Development, iPhone, Android, PhoneGap, Backend Development, App Store Optimization, API Development, AI App Development

We are looking for a senior React Native/Expo developer to diagnose and resolve a persistent Android startup issue in an existing production application called RoadPulse.

The problem occurs on a physical Samsung S24. The app installs and launches, but can fail during startup/authentication and become stuck on a recovery screen.

The issue appears to involve authentication/bootstrap verification, AsyncStorage, Android lifecycle/Activity recreation, asynchronous operations and possible race conditions.

We already have extensive diagnostic material available, including:

Physical-device startup traces and debug logs
Exact timestamps and failure sequences
Previous APK/build history
Git commits and previous attempted fixes
Existing automated tests
A documented analysis of the authentication/bootstrap flow

This is not a new app development project and we do not want a rewrite.

We need an experienced developer who can investigate an existing React Native/Expo production codebase and determine the actual root cause from evidence.

First task

The initial assignment is read-only diagnosis.

Review the existing implementation and diagnostic evidence.
Trace the Android startup/authentication flow.
Determine the actual root cause.
Explain exactly why the failure occurs.
Recommend the smallest safe fix.

No code changes should be made until the diagnosis is presented and approved.

Experience with React Native, Expo/EAS, Android lifecycle/Activity recreation, AsyncStorage, authentication state, Promise/async race conditions and debugging physical-device-only issues is highly desirable.

Please tell us if you have personally solved similar production React Native/Android problems and briefly explain how you would approach this investigation.

I need a production-ready, cross-platform social and communication app built with React Native for both Android and iOS. The very first release must nail short-form video, real-time messaging, and rich user profiles; on top of that, I also expect an integrated ads network for creators and brands plus a secure web-based admin panel for moderation and analytics.

Frontend
React Native will drive the mobile clients, with native modules where raw performance is essential. For video, FFmpeg/ExoPlayer/AVFoundation are acceptable; messaging should ride on WebSockets or gRPC streams to keep latency low.

Backend
A microservice architecture in Go, Rust, or Elixir—whichever your team masters best—running on PostgreSQL (with Redis for caching and object storage for media) is required. The codebase must follow clean-architecture principles, feature full automated testing, CI/CD pipelines, and infrastructure-as-code (Terraform or Pulumi) so we can scale smoothly to millions of monthly active users.

Security & Performance Targets
OAuth2/OpenID Connect, RBAC, encrypted media at rest, rate limiting, audit logging, sub-second message delivery, smooth 60 fps video playback, and ≤150 ms 95th-percentile API latency under load.

Deliverables
• React Native source with modular folder structure
• Backend services in Docker/K8s manifests
• Web admin panel with role management
• Ads network module ready for future DSP integration
• Complete documentation (setup, API, architecture) & automated test suite
• Staging builds via TestFlight / Firebase App Distribution

Acceptance Criteria
1. A user can register, create a profile, post a ≤60 s video, and receive likes/comments without noticeable lag.
2. Two devices exchange real-time messages successfully even on 3G.
3. Admin panel lists users, flags content, and toggles ad campaigns.
4. Load-testing with 1 000 concurrent users stays within the stated latency budgets.

If your team has shipped social, messaging, or video products at scale, please share code samples or store links that prove it. I’m ready to move quickly once the right match is found.

Skills: JavaScript, Mobile App Development, iPhone, PostgreSQL, Swift, Kotlin, Rust, Microservices

Who We Are

Red Software. UK agency, 15+ years, 160+ apps shipped. Stack: Flutter, React, Supabase, AWS. We build with Claude Code and Figma at the core — AI-first for real, not as a buzzword.

The Role

You own projects start to finish. Not tickets. Not standups. The whole thing:

Scope it. Run discovery calls. Ask the sharp questions. Turn client conversations into a spec so clear a developer never has to guess.

Prototype it. Design and build working prototypes with Claude Code and Figma. Iterate with the client until they say "yes, that's it."

Build it. Hand the confirmed design to a developer. Drive the build. Unblock fast, review everything, keep the client warm.

Ship it. App Store and Play Store setup. APIs and integrations via Claude Code. Crashlytics. Release. Done means live.

You
You ACE client comms. One call with you and clients relax. Bad news delivered early, expectations set clearly, no message left hanging.
You think in UX. You see the user flow, the edge cases, and the simpler version the client actually needs — before they do.
You're technical. APIs, integrations, release pipelines, store submissions. You use Claude Code to do real work and hold your own with developers.
AI is your daily driver. Claude Code, Cursor, or similar — already in your workflow, not on your to-learn list.
You own outcomes. "Someone else dropped the ball" isn't in your vocabulary.
Bonus Points

Flutter / Supabase / Firebase · Figma · agency experience running multiple projects · ClickUp · healthcare software

Details

Long-term role. Remote with strong UK-hours overlap. Weekly client calls — quiet space and solid connection required.

To Apply

Start your proposal with the word "Lighthouse". Then answer the screening questions — short, specific, no essays. Include a 2-minute Loom or voice intro. Communication is the job; show us yours.

We are looking for a Senior Flutter Developer with deep expertise in Riverpod architecture and experience in launching and scaling high-performance apps on the Play Store/App Store.
You will architect, develop, and optimize Flutter applications while ensuring code quality, scalability, and maintainability. A strong understanding of SOLID principles, multiple design patterns, and native Android/iOS development is mandatory. If you're passionate about building high-quality, scalable, and crash-free mobile applications with an emphasis on performance optimization, we want to hear from you!.

Key Responsibilities-
● Develop, maintain, and optimize high-quality Flutter applications using Riverpod architecture.
● Ensure scalability, performance, and smooth user experience for apps with a large user base.
● Work on performance optimization, reducing app size, improving rendering speed, and decreasing load time.
● Implement Crashlytics, Firebase Analytics, and performance monitoring tools to ensure high app stability.
● Follow and implement SOLID principles, clean architecture, and multiple design patterns.
● Collaborate with cross-functional teams including UI/UX designers, backend developers, and product managers.
● Maintain high code quality, best practices, and modular architecture.
● Integrate native Android/iOS functionalities when necessary, using Kotlin, Java, Swift, or Objective-C.
● Ensure seamless third-party API integrations and maintain RESTful API best practices.
● Write unit tests, widget tests, and integration tests to maintain code quality.
● Provide mentorship and technical guidance to junior developers.
● Continuously stay updated with Flutter and mobile development trends to implement best practices

Must-Have Requirements
● 3-4 years of experience in Flutter app development with at least 2 years using Riverpod.
● At least 2 Play Store/App Store published apps with a large user base and high performance.
● Strong understanding of Flutter's rendering pipeline, state management, and animations.
● Experience with Crashlytics, Firebase Performance Monitoring, and Analytics.
● Expertise in SOLID principles, clean architecture, and multiple design patterns.
● Strong debugging and performance tuning skills in Flutter applications.
● Hands-on experience with native Android (Kotlin/Java) or iOS (Swift/Objective-C).
● Experience in CI/CD pipelines for mobile apps (Fastlane, GitHub Actions, Bitrise, or Codemagic).
● Knowledge of RESTful APIs, GraphQL, and real-time data synchronization.
● Strong command over asynchronous programming (Futures, Streams, isolates, and event loops).
● Proficiency in Flutter testing frameworks (Unit, Widget, and Integration tests).
● Experience in handling multi-threading and background tasks in Flutter.
● Understanding of Material Design and iOS Human Interface Guidelines.

Good-to-Have Skills
● Experience with Flutter Web and Flutter Desktop.
● Familiarity with App Store/Play Store policies and release processes.
● Knowledge of native module development for Flutter using platform channels.
● Experience in automated deployment and release management.
● Contributions to open-source Flutter projects or a strong GitHub portfolio.
● Experience with AI/ML models integration in mobile applications.
● Knowledge of AR/VR using Flutter.

I need a complete mobile app (Android and/or iOS) that lets household users book a doorstep pickup for their recyclable dry waste and earn either cash or in-app points once the material is weighed and verified.

Core flow
• User signs up, selects the material type—paper, plastic, metal, or e-waste—and books a time slot.
• A collector receives the request, arrives, weighs the items, and updates the weight through the app.
• The system instantly shows the cash value or points credited to the user’s wallet.

Key features I must see
• Real-time scheduling with reschedule/cancel options.
• GPS or map integration to route collectors efficiently.
• Material-wise pricing table that I can adjust from an admin panel.
• Digital weight entry (manual input is fine for the first release; Bluetooth scale pairing is a plus but not mandatory).
• Wallet showing total earnings and redemption history (cash transfer or point redemption).
• Basic analytics dashboard for me to monitor volume collected, user activity, and payouts.

Tech preferences
I am open to either a cross-platform stack like Flutter/React Native or separate native builds, as long as the UI remains lightweight and can run smoothly on budget Android phones. A simple Firebase or similar backend is acceptable for the first version if it keeps development time down.

Deliverables
1. Source code for the mobile app and admin panel.
2. Brief setup documentation so I can deploy the backend on my own server or cloud instance.
3. One test build (APK and/or TestFlight) reflecting all listed features.

Acceptance criteria
• I can create a test user, schedule a pickup for paper, plastic, metal, and e-waste, and receive a wallet credit after the collector confirms weight.
• Admin panel lets me update per-kilogram rates and see the change instantly reflected in the app.

If you have prior work in logistics, waste management, or reward-based apps, include a short note or demo link—nothing fancy, just enough to show relevant experience.

Skills: PHP, Mobile App Development, iPhone, Android, GPS, React Native, Flutter, iOS

About the Project

We are looking for an experienced ASO & Apple Search Ads Specialist to help grow the organic and paid visibility of our mobile apps on the Apple App Store and Google Play Store.

The ideal candidate has a proven track record of improving keyword rankings, increasing conversion rates, and managing high-performing Apple Search Ads campaigns to drive sustainable app growth.

Responsibilities

* Develop and execute ASO strategies for iOS and Android apps.
* Perform keyword research and optimize app metadata (titles, subtitles, descriptions, keywords).
* Optimize app listings, including screenshots, icons, feature graphics, and promotional text.
* Conduct A/B testing of app store creatives and copy to improve conversion rates.
* Monitor keyword rankings, category rankings, and competitor performance.
* Plan, launch, and optimize Apple Search Ads (ASA) campaigns.
* Develop keyword bidding strategies and manage campaign structure across Brand, Generic, Competitor, and Discovery campaigns.
* Optimize bids, budgets, and targeting to improve CPI, CPA, and ROAS.
* Use Apple Search Ads insights to identify new ASO opportunities and vice versa.
* Analyze app performance and provide actionable recommendations based on ASO and ASA data.
* Collaborate with designers and marketing teams to continuously improve app store performance.
* Deliver regular reports with insights, recommendations, and next steps.

Requirements

* 3+ years of hands-on experience in App Store Optimization (ASO).
* Proven experience managing Apple Search Ads campaigns with measurable results.
* Strong understanding of Apple App Store and Google Play Store ranking factors.
* Experience with ASO tools such as AppTweak, Sensor Tower, MobileAction, App Radar, Data.ai, or similar.
* Strong analytical skills with experience interpreting app performance data.
* Experience using App Store Connect, Apple Search Ads Console, Google Play Console, Firebase, or similar analytics platforms.
* Excellent written English and communication skills.
* Ability to work independently and proactively recommend growth opportunities.

Nice to Have

* Experience with subscription-based or consumer mobile apps.
* Experience with localization and international ASO.
* Knowledge of Google App Campaigns is a plus.
* Experience working with product, marketing, and design teams.

Deliverables

* Comprehensive ASO audit and optimization roadmap.
* Keyword research and ongoing keyword tracking.
* Optimized App Store and Google Play listings.
* Apple Search Ads campaign setup, management, and optimization.
* Ongoing A/B testing recommendations for store assets.
* Weekly or monthly reports covering:
* Organic keyword rankings
* Conversion rate improvements
* Organic installs
* Apple Search Ads performance (impressions, taps, TTR, CPT, CPA, ROAS)
* Key insights and recommendations

To Apply

Please include:

1. Links to apps you have worked on.
2. Case studies or examples showing ASO and Apple Search Ads results.
3. The ASO and analytics tools you use.
4. A brief overview of your optimization process.
5. Your hourly rate or monthly retainer.

Project Type: Long-Term / Ongoing

Experience Level: Intermediate to Expert

Budget: Please submit your hourly rate or monthly retainer with your proposal.

Bonus: If you’ve successfully scaled apps using a combination of ASO and Apple Search Ads, we’d love to hear about your approach and the results you achieved.

We have a store front tied into our marketing software. Our stack is (Vue/Vuetify/Vite)/(Firebase/Firestore)/Nodejs. Some pages are complete, the store front is not implemented, neither is the user view that shows past and saved orders. Object schema will be similar to GoHighLevel which is well documented. Looking to bring in someone to increase velocity. and take this over the finishline.

I am a developer myself and work for several clients. Currently, I faced with one roadblock and need inputs from Senior dev.

I am looking for a highly skilled Full-Stack Software Engineer with strong AI and automation experience to build modern, scalable web and mobile products.

You’ll work on projects that combine React/Next.js, React Native, Node.js/Python, cloud infrastructure, AI APIs, AI agents, business automation, and third-party integrations.

1. What you’ll build

AI-powered SaaS platforms and MVPs
AI agents and intelligent business workflows
RAG-based applications and AI assistants
React / Next.js web applications
React Native / Expo mobile applications
Node.js / Python APIs and backend systems
n8n / Make / Zapier automation workflows
CRM, payment, ecommerce and business-system integrations
AWS/Firebase cloud deployments and production infrastructure
Admin dashboards, analytics and real-time features

2. Ideal candidate
Strong full-stack software engineering with 15+ years of experience
Able to work during US timezone
Excellent React / Next.js and Node.js skills
Experience with React Native / Expo is a strong plus
Experience integrating OpenAI, Claude, Gemini or similar AI APIs
Understanding of LLM, RAG and AI-agent architectures
Experience with REST APIs, webhooks and OAuth
Experience with AWS, Firebase or similar cloud platforms
Comfortable working with PostgreSQL, MongoDB or other modern databases
Experience with n8n, Make.com or Zapier is highly valuable
Able to take a business requirement and turn it into a production-ready solution
Strong understanding of architecture, security, scalability and testing.

3. What I value

I am not looking for someone who simply writes code.

I want an engineer who can understand the business problem, design the right architecture, leverage AI intelligently, integrate existing systems, and deliver a reliable production solution quickly.

If you enjoy building AI-enabled products, SaaS platforms, automation systems and modern web/mobile applications, I’d love to work with you.

PROJECT OVERVIEW AND STRICT COMPLIANCE AGREEMENT

We are strictly looking for an experienced full stack Android and Web developer or a small software team to configure heavily customize and deploy a READY MADE prediction number gaming system

IMPORTANT FINANCIAL NOTICE We have a strict non negotiable FIXED BUDGET of 150 to 180 dollars approx 12000 to 15000 INR This entire project will be strictly funded managed and executed via secure Upwork Milestones Escrow Absolutely NO upfront advances or off platform payments will be entertained Do not apply if you intend to build this project from scratch or if you cannot deliver all required features within this fixed budget

CORE CLIENT SIDE REQUIREMENTS ANDROID USER APP

1 Complete Professional Rebranding Take a stable ready made prediction matka source code and rebrand it completely with our custom app name high resolution logo and specific brand color themes Deliver a highly polished and completely secure final compilable Android apk file
2 Micro Payment and Throttling Limits
Minimum Deposit limit must be hard coded at exactly 50 rupees
Minimum Withdrawal limit must be hard coded at exactly 50 rupees
Minimum Bet size must be configured at exactly 1 rupee per bet
3 Strict 24 Hour Frequency Lock To maintain automated system health the app backend must enforce a strict dynamic lock Any single user ID can perform a maximum of only 4 deposits and 4 withdrawals within any 24 hour cycle
4 Integrated Audio Visual Suspense
Low Latency Video Player Integrate a highly stable HLS RTMP real time streaming player inside the user app that seamlessly connects to our private server streaming directly from OBS Studio
Countdown and Heartbeat Audio The screen must show a live synchronized countdown clock Background music must trigger a subtle suspenseful heartbeat audio effect that dynamically accelerates as the betting lock window approaches
5 Real Time Relative Color Load Graph
Visual Distribution Bars The app interface must feature a highly engaging colorful dynamic data graph Green for low volume Yellow for mid volume Red for peak volume across single numbers 0 to 9 and relevant combinations
ABSOLUTE PROTECTION OF ADMIN WALLET The graph algorithm must ONLY display relative percentage multipliers capped at a maximum visual scale of 90 percent Under no circumstances should the absolute backend currency amounts or the total pool value be visible or guessable by any user

CORE SERVER SIDE REQUIREMENTS CROSS PLATFORM WEB ADMIN PANEL

1 100 Percent Responsive Cross Platform Dashboard The entire Admin Control Room must be designed as a responsive web dashboard It must scale fluidly and securely on Laptops Desktops and Mobile Web Browsers like Google Chrome and Safari
2 Advanced Cron Scheduling and Live Time Window
Example 2 30 PM Show Rules
At exactly 2 05 PM the system must trigger an automatic hard lock on all Pana betting options Single Pana Double Pana SP Pana SR Series and instantly open reveal two pre selected card clues on the user app screen
Keep Single Digit and Jodi betting open for the next 15 minutes allowing active users to guess the 3rd card
At exactly 2 20 PM completely hard lock the entire session No user can place any more bets
Between 2 20 PM and 2 30 PM the admin will live stream via OBS Studio to reveal the third card and declare the official results
3 Dynamic Duplicate Betting Block For the Series Jackpot formatting where a 10 rupee bet size pays 6000 rupees a strict database validation check must be enforced If a specific User ID places a 1 rupee bet on a specific Jodi combination that exact combination must instantly lock for that user session To place further bets they must choose from the remaining 9999 combinations
4 Total Master Controls Admin must have full rights to override results manually view live financial liability metrics per number instantly block unblock fraudulent users configure global bet limits and automate a server cron cleanup script every 7 days to flush old betting data rows for optimum server speed
5 Absolute Security Protocols The web dashboard login must feature Google Authenticator 2FA OTP and device IP locking to ensure only the admins authorized hardware can access the console

STRICT THREE PART MILESTONE AGREEMENT AND TESTING TERMS

This project will be strictly broken down into 3 milestone chunks Funding for each milestone will be locked in Upwork Escrow before the developer begins that phase

MILESTONE 1 50 dollars approx 4000 INR Code Setup and Server Deployment
Deliverable Deploy the web admin dashboard and the core database on my Hostinger Premium Web Server using Delegate Shared worker access Deliver a basic compilable rebranded working Android apk file

MILESTONE 2 60 dollars approx 5000 INR Gateway and Streaming Automation
Deliverable Successful integration of the PayWin P2P payment gateway API with automated processing fee deductions from user withdrawals full configuration of the low latency RTMP server and live testing of the 2 05 PM automated time window locks

MILESTONE 3 70 dollars approx 6000 INR Real time Graph and 100 Percent Source Code Handover
Deliverable Successful launch of the hidden relative percentage load graph and completion of all 20 25 custom admin controls

CRITICAL PROJECT CLOSURE AND INTELLECTUAL PROPERTY TERMS
Before the final payment of Milestone 3 is released from Upwork Escrow the developer must deliver 100 percent complete unencrypted and compilable Android and Web source code in zip format with absolutely ZERO third party software dependencies The admin will perform full on server password rotations for Hosting Database and Web Panel Master credentials to ensure 0 percent future dependency on the developer As per Upwork terms all intellectual property and master rights will legally belong to the client upon final milestone approval

FORMAL REVIEW PERIOD The client will have a formal continuous 14 day testing period upon final submission to test micro bets withdrawals and streaming stability before approving the final contract closure

I am looking for a full-stack web developer to build a modern, responsive, and user-friendly web application. The project will require frontend and backend development, API integration, database connectivity, authentication, responsive UI, testing, debugging, and deployment support. Preferred technologies include React, JavaScript, Node.js, Python, Flask, SQL, and Firebase. The final application should be secure, scalable, well-structured, and ready for deployment.

Skills: JavaScript, Python, SQL, NoSQL Couch & Mongo, Node.js, Web Development, Full Stack Development, Flask, Database Management, API Development

We are looking for a skilled and reliable React Native developer to join our team at DevSec for an ongoing mobile app development project. The ideal candidate will have strong hands-on experience building cross-platform mobile applications and delivering high-quality, performant apps.

Responsibilities:

Develop new mobile app features using React Native
Ensure smooth performance and seamless integration with existing backend/web systems
Write clean, maintainable, and well-documented code
Troubleshoot, debug, and optimize app performance across iOS and Android
Collaborate closely with our development team, project coordinators, and stakeholders
Assist with app store and play store deployment processes
Participate in code reviews and sprint planning as needed

Requirements:

Proven experience in React Native mobile app development (iOS & Android)
Strong understanding of mobile UI/UX principles
Familiarity with RESTful APIs and third-party integrations
Experience with state management (Redux, Context API, or similar)
Experience with version control systems (Git)
Strong communication skills and ability to work in a collaborative team environment
Ability to meet deadlines and manage time effectively

Nice to Have:

Experience with push notifications (Firebase, Twilio, etc.)
Experience with backend technologies (Node.js, Laravel, or similar)
Prior experience with SaaS platforms
Experience publishing apps to App Store / Google Play Store

We are a mobile vehicle inspection company scaling nationally. We need a custom inspection app built in React Native to replace our current third-party solution. This app will be used by 1099 independent inspectors in the field.

This is a long-term relationship.
Phase 1 is the core app.
Phase 2 will add contractor management, dispatch, and multi-market features.

CORE FEATURES NEEDED:

INSPECTION FLOW (most important):
- Guided point-by-point inspection — tech cannot skip a step
- Each point requires: Photo → Highlight problem area on photo
→ Grade selection → Notes → Next
- Speed dropdown grades: Good / Fair / Poor / Fail / Not Equipped
- Pre-saved comment library for fast note entry
- 100-point customizable inspection template
- Tech literally cannot submit without completing every step

VEHICLE INTAKE:
- VIN scan (barcode + QR)
- VIN auto-lookup via NHTSA free API
(returns Year, Make, Model, Engine, Drive Type automatically)
- Manual entry fallback
- Mileage, color, inspector name, client name fields

PHOTO MANAGEMENT:
- Vehicle diagram with camera positions
(front, rear, driver side, passenger side, undercarriage)
- Unlimited photos per inspection point
- Photo annotation/highlight tool built in

REPORT & EXPORT:
- PDF generation on device
- Branded report with company logo
- Summary chart (Good/Fail/NE counts)
- Cloud upload/sync

ADMIN PORTAL (web):
- View all completed inspections
- Download reports
- Manage inspectors
- Track inspection history per vehicle/VIN

TECH STACK REQUIREMENTS:
- React Native (Android + iOS from one codebase)
- Firebase for cloud sync and storage
- NHTSA API for VIN decode (free, no cost)
- PDF generation library
- Photo annotation library

WHAT I WILL PROVIDE:
- Full feature spec document
- Screenshots of current app for reference
- Brand assets (logo, colors)
- Inspection point list (all 100 points)
- Sample report PDF for design reference



TIMELINE:

TO APPLY — ANSWER ALL OR WON'T BE REVIEWED:

1. Have you built a React Native app with photo annotation
before? Share example.
2. Have you worked with the NHTSA VIN decode API?
3. Have you built PDF generation in React Native?
4. What is your hourly rate and estimated timeline for
this scope?
5. Are you available for milestone-based payments?

We are looking for a React Native developer for a small, well-defined task in an existing mobile application.

## Scope of Work

- Review the existing React Native project
- Integrate a third-party SDK into the React Native app
- Configure the SDK for Android
- Fix any minor integration or build issues
- Verify the SDK is working correctly
- Prepare the Android project for release
- Generate a signed Android APK/AAB
- Assist with deployment to the Google Play Console
- Make sure the production build runs successfully
- Provide a short summary of the changes and deployment steps

## Requirements

- Strong experience with React Native
- Experience integrating native/third-party SDKs
- Good knowledge of Android Studio and Gradle
- Experience with APK/AAB signing and release builds
- Familiarity with Google Play Console deployment
- Ability to troubleshoot Android build issues
- Clean and readable code
- Good communication

## Deliverables

- Working SDK integration
- Successfully tested Android build
- Signed APK/AAB release file
- Android deployment configuration completed
- Source code with all changes
- Brief setup/deployment documentation

This is a small project with a clear scope. Successful completion may lead to additional React Native development and maintenance work.

When applying, please briefly mention your React Native experience, previous SDK integrations, and experience deploying Android applications.