Optimize Android Project Search with Vollna

I need someone to build my existing Figma mobile app design using React Native (Expo) with Supabase/Firebase, integrate OpenAI APIs, Stripe subscriptions, and deploy to iOS and Android. The ideal candidate will have experience in mobile app development and be able to handle multiple integrations and deployments.

My goal is to turn a clear concept into a polished mobile application that runs natively on both iOS and Android. The app will serve parents and caregivers who need quick, trustworthy help recognising early signs of autism and managing day-to-day challenges once a diagnosis is confirmed.

Core experience
• Symptom tracker – an easy, daily log where users can record behaviours, moods and triggers, then view trends through simple charts.
• Resource library – a searchable hub that houses articles, videos and professional guidance, with the ability for me to update content without releasing a new build.

Scope of work
I have the overall concept and content outline; what’s needed is the full product design and development cycle: wireframes, UI/UX, cross-platform coding (Swift/SwiftUI or Kotlin/Jetpack Compose, or a shared framework such as Flutter or React Native if you prefer), basic analytics and App Store / Google Play deployment. Clean, documented code and a small admin portal or CMS for the resource library are essential so I can grow the content myself.

Deliverables
1. Interactive prototype and approved UI kit
2. Production-ready iOS and Android apps, uploaded to TestFlight / internal track
3. Source code in a private Git repository
4. Simple CMS or JSON feed to manage library content
5. One-page user guide and hand-over call

Acceptance criteria
• Smooth installation and account creation on both platforms
• Accurate data persistence for symptom entries with offline support
• Resource articles load instantly and can be updated from the CMS without recompiling the app
• No critical or major crashes flagged by Firebase Crashlytics during a one-week beta test

If this stack and scope match your expertise, I’m ready to start as soon as we agree on milestones and timeline.

Skills: Mobile App Development, iPhone, Android, iPad, Kotlin, iOS Development, Android App Development, SwiftUI

Our company is a managed service provider that delivers software and services to the telecommunications and IT industries.

We are looking for a freelancer from Ivory Coast (Côte d'Ivoire) to keep our phones connected to the internet. The App tests network quality and issues of telecommunications operators. The phones should be connected to the Internet. All extra costs are covered. The monthly fee is 55 USD for keeping phones at your office or home with good uptime.

Please apply only if you live in Ivory Coast (Côte d'Ivoire).

We are looking for a small, reliable and already-coordinated freelance team to build a lean MVP for a multi-role booking marketplace.

The project includes:

1. Customer Mobile Application
– Flutter application for Android and iOS
– Registration and authentication
– User profile
– Browse without registration
– Search by location and dates
– Basic filters
– Listing details with images, information and total price
– Availability viewing
– Booking creation and status tracking
– Favorites
– Secure document upload
– Push notifications
– Arabic and French localization
– Full RTL support for Arabic

2. Provider Web Portal
– Secure login
– Provider profile management
– Add and edit listings, images and prices
– Availability calendar
– Block unavailable dates
– View and manage bookings
– Update booking status
– Basic notification center

3. Admin Dashboard
– User and provider management
– Review and approve documents
– Review and manage listings
– Booking supervision
– Basic support and complaint management
– Content and settings management
– Basic reports

4. Backend and Database
– Secure REST APIs
– Authentication and role-based permissions
– Booking and availability logic
– Prevention of double booking
– Server-side price calculation
– Secure document storage
– Notification service
– Sandbox or mock payment integration
– Development, staging and production environments

We already have initial UI direction, a Flutter prototype and structured functional requirements. The selected team may need to review and refine the UI/UX before implementation.

Not included in the first MVP:
– Real payment processing
– Automated refunds or payouts
– Artificial intelligence
– Live chat
– Advanced financial modules
– Advanced analytics
– Insurance modules

Working conditions:
– Fixed-price project
– Delivery by milestones
– Weekly demonstration
– Regular delivery of the source code to our repository
– Clear documentation
– Full source-code and intellectual-property ownership transferred to the client
– At least 60 days of bug-fix support after delivery
– Estimated timeline: 10 to 14 weeks

We prefer a small team that already works together and includes:
– Flutter developer
– Backend and web developer
– UI/UX designer
– QA tester

Please include in your proposal:

Your team members and their roles.
Links to similar live applications or platforms.
Your proposed technology stack.
Fixed total price and milestone breakdown.
Realistic delivery timeline.
What is included and excluded.
Payment schedule.
Warranty and maintenance conditions.

Please start your proposal with the words “Booking MVP Team” to confirm that you have read the full description. Generic proposals will not be considered.

**Need native Japanese language conversation recording project 🎙️**
Project details:
Simply record natural conversations using our app. Topics are easy and relatable like sports , entertainment, music , relationships etc

**Requirements:**
Recording device:** Just smartphone (iPhones or a latest android phone is preferred) and a quiet environment
- **Participants:** Each session requires two people in conversation. If you already have a partner, fantastic! If not, we’ll pair you with someone on Upwork.
- **recording timing :**
Choose 7topics and record a minimum of 20 minutes per topic—totaling 2:30 hours for the pair.

- *payment:* $10 per hour for each participant.
- **Total payment:** Complete the full session (2.30hours) to get $25$ per person.
Total Payment for both people $50!

No professional experience required—Great opportunity for you to explore new field

- only Open to new participants (those who haven’t joined this same project on Funcrowd before).
***Bonus:***
- Get a 5-star review upon completion!

Let us know if you already have a conversation partner or if you’d like us to pair you with someone through Upwork.

If you have already recorded same conversation recording project before on Funcrowd App then you can’t do it again. One person can do it only once. If you will do same project twice then it will be invalid

This is a great opportunity to do a fun task and get 5* review

Flutter + Firebase Developer — Finish a Working Fitness Marketplace MVP
Fixed price · $2,500 · ~80 hours · 4-6 weeks · 4 milestones

We have a working Flutter + Firebase MVP running on real hardware (auth, role routing, matching engine, AI meal plans, scheduling, reviews, security rules all built). We need someone to take it the last mile: admin layer, finish messaging, apply real UI, and ship to TestFlight/Play internal testing.

Not a greenfield build, not a rewrite. You'll extend a codebase with clear conventions already in place.

Stack: Flutter (Dart 3.11), Material 3, Riverpod 2.6, go_router 15, Firebase (Auth/Firestore/Storage/FCM/Cloud Functions v2), Anthropic API, Stripe (Phase 2).

Milestones: admin dashboard + seed accounts ($450) · trainer-client messaging with push notifications ($650) · Material 3 UI pass across ~15 screens ($700) · store deployment for iOS + Android ($700).

You're a good fit if you've personally shipped Flutter apps to both stores, are comfortable with Firebase security rules, have wired FCM end-to-end (including terminated-state deep links), use Riverpod/go_router, have design sensibility without needing Figma, and overlap 3+ hours with US Eastern.

My mobile app is already available on the Google Play Store: https://play.google.com/store/apps/details?id=com.hazyl

However I need to change the app logo to something more unique to meet the Apple App Store's requirements. Please review my app, try it out if you have an Android, and work with me to create a high fidelity logo that can be used on both app stores and in-app!

We are seeking a mentor, UX/UI expert, and developer to create a native app for both iPhones and Android devices. The ideal candidate will have experience in mobile app development, with a strong understanding of user interface and user experience design. The role involves guiding the development process and ensuring the app is optimized for both platforms.

Necesito desarrollar una aplicación móvil que funcione de forma nativa tanto en iOS como en Android. El objetivo es ofrecer a los usuarios una experiencia completa para crear, seguir y optimizar sus entrenamientos en el gimnasio.

Funcionalidades esenciales:
• Seguimiento de ejercicios – registro de series, repeticiones, pesos y notas.
• Planes de entrenamiento personalizados – el usuario elige objetivos y la app genera rutinas adaptadas.
• Estadísticas de rendimiento – gráficos y métricas para visualizar progreso a lo largo del tiempo.

Gestión del contenido:
Quiero combinar un catálogo inicial de ejercicios precargados (con vídeo, descripción y músculos trabajados) y la opción de que los propios usuarios suban nuevos ejercicios, de modo que la base crezca de forma colaborativa.

Alcance técnico esperado:
– Desarrollo front-end y back-end con autenticación básica (correo, Apple Sign-In y Google Login).
– Base de datos que almacene entrenamientos, historial y multimedia.
– Panel o método sencillo para subir, editar y moderar ejercicios creados por la comunidad.
– Entrega del código fuente documentado y publicable en App Store y Google Play, junto con instrucción corta para compilar y desplegar.

Valoraré experiencia previa en apps fitness, manejo de notificaciones push y diseño de interfaces limpias en Swift / Kotlin / Flutter / React Native.

Skills: Mobile App Development, iPhone, Android, HTML5, iOS Development, React Native, Flutter, Android App Development

We're a fintech mobile app with a cashback rewards feature, and we need a detail-oriented QA engineer to test our "earn" and "redeem" cashback flows end to end on both iOS and Android before our next release.

The core of the app: users earn cashback on qualifying transactions and can later redeem their accumulated balance (e.g. to their wallet, against a purchase, or as a payout). We want these money-related flows verified thoroughly, since accuracy here directly affects user trust.

Scope of testing:
- Earning cashback: correct amount credited per transaction, cashback rules/percentages applied correctly, pending vs confirmed balance, timing of when cashback appears.
- Redeeming cashback: redemption flow works end to end, correct balance deducted, minimum-redemption thresholds enforced, confirmation and receipt shown.
- Balance integrity: earned + redeemed always reconciles; no double-credit or double-redeem; behavior on failed or interrupted transactions.
- Edge and negative cases: insufficient balance, redemption during a network drop, backgrounding the app mid-flow, retries, and boundary amounts.
- Cross-platform: verify on both Android and iOS, across a couple of device/OS versions.
- Basic UX/usability checks on the cashback screens (clarity of balance, states, and error messages).

Deliverables:
- A short test plan / list of test cases covering the flows above.
- A documented bug report for any issues found (steps to reproduce, expected vs actual, severity, screenshots or screen recordings).
- A brief summary of overall quality and any recommendations before release.

Requirements:
- Proven experience testing mobile apps (iOS and Android).
- Background testing fintech, payments, or banking apps is a strong plus.
- Solid bug reporting and test-case documentation (Jira or similar).
- Clear written English.

We'll provide access to the app (test build) and any test accounts or credentials needed. Please share a quick note on your relevant mobile/fintech QA experience when you apply.

We need to make appstore cards for iOS and Android stores, preferably also a video for the first card.

I run a physical furniture store and now want a digital experience that lets customers design what they buy before it reaches my workshop. I need a responsive website and companion mobile app (iOS and Android) that share the same database so orders stay perfectly in sync.

Core functions I must see working:
• Interactive product pages where shoppers pick colors and materials and adjust dimensions in real time, with the price updating automatically.
• Basic user accounts that store order history and let customers track the build-to-delivery process. Guest browsing is fine, but checkout should encourage sign-in so people can follow their order.
• A straightforward admin dashboard where I add new furniture templates, set material/colour options, change pricing rules for size changes, and print or export spec sheets for my workshop.

I already have brand photos, text, and a domain; you’ll handle UI/UX, development, and deployment to App Store, Google Play, and my hosting. The full system has to be live within a month, so choosing a proven e-commerce stack (Shopify custom app, WooCommerce + Flutter, or a MERN/React Native combo) that you can move quickly with is important to me.

When you respond, please let me know:
1. Which tech stack you’d use and why it fits the deadline.
2. Any similar customization work you’ve shipped.
3. A rough breakdown of milestones from prototype to launch so I can keep my production team informed.

I’m ready to provide immediate feedback and assets—looking forward to seeing how you can turn my showroom into an engaging, custom-first digital storefront.

Skills: Website Design, Graphic Design, Mobile App Development, User Interface / IA, React.js, UI / User Interface, Web Development, React Native, Flutter, MERN

A Chiquê pretende desenvolver uma plataforma comercial própria, inspirada nos principais fluxos utilizados atualmente no Mercos, mas com arquitetura, identidade e código independentes. A solução será composta por um sistema web responsivo para vendedores externos e equipe interna, um aplicativo Android com funcionamento offline e um portal consultivo para clientes. A operação inicial prevê cerca de 20 usuários.

O WooCommerce será a fonte do catálogo comercial — produtos, categorias, imagens, preços, promoções, situação e estoque — com atualização automática noturna e comando manual. O Olist fornecerá o histórico inicial de clientes e pedidos, NCM e informações fiscais disponíveis, títulos, boletos, notas e valores faturados. Após a implantação, o novo sistema será o mestre dos cadastros humanos aprovados e de todo o fluxo comercial anterior ao faturamento.

Vendedores e equipe interna poderão cadastrar clientes, elaborar e duplicar orçamentos, importar itens por planilha, escolher modelos HTML/PDF, compartilhar links e gerar pedidos dos tipos Venda ou Bonificado. O sistema aplicará automaticamente promoção, maior desconto permitido, Saldo Flex mensal, pedido mínimo por estado, parcelamento, frete obrigatório, limite de crédito, inadimplência e ICMS-ST/FCP-ST. Estoque será apenas informativo: produto ativo poderá ser vendido e enviado ao Olist mesmo sem saldo.

Os pedidos seguirão uma esteira em Kanban com recebimento, pendências e aprovação. Qualquer membro ativo da equipe interna poderá resolver exceções comerciais, cadastrais, fiscais ou financeiras. Depois da aprovação, o pedido ficará imutável e será enviado ao Olist com controle contra duplicidade. Uma rotina diária conciliará o valor solicitado com o valor realmente faturado, atualizará os estados Parcialmente faturado ou Faturado e alimentará crédito, comissão e relatórios.

O Android armazenará somente a carteira do vendedor, catálogo com miniaturas, regras necessárias e até 12 meses de histórico comercial, mantendo dados financeiros exclusivamente online. O portal do cliente será somente leitura. A solução também incluirá relatórios gerenciais, Curva ABC, positivação, mapas de calor, API segura para receber pedidos externos e MCP inicialmente consultivo para conexão com IA. Todo o código, contas, chaves, backups e infraestrutura ficarão sob titularidade da Chiquê em VPS própria.

PDF com descrição completa em anexo.

Skills: PHP, Mobile App Development, Android, HTML, Software Development, WooCommerce, Web Development, API, Backend Development

BACKGROUND
The previous Upwork contract was closed by the platform before milestone payment was released. This continuation agreement reinstates the remaining two milestones under a new Upwork contract. All prior work completed under the original contract is acknowledged by both parties. This agreement covers only the remaining outstanding deliverables.
The scope below reflects a simplified launch version agreed upon by both parties, designed to keep the app financially sustainable from day one without adding scope beyond the original agreement.

Milestone 1 — Payments & App Launch — $2,600

App configured so that API costs per active user do not exceed subscription revenue. Free tier with 3-session monthly cap enforced server-side. Core tier at $4.99/month with unlimited sessions. Limitation popup when free user hits cap. Push notifications, streak tracking, memory across entries, and EQ Points all functioning correctly. Terms of Service screen in app. Client has access to usage and subscription data. App live on App Store. Payment released after client confirms everything is working as expected.

Milestone 2 — Backup & Bug Fixes — $760

Database backups active. Full QA completed before submission. 30-day bug guarantee begins on public launch date. All bugs reported within 30 days fixed per original contract terms. Payment released 30 days after public launch.

Intellectual Property
All work product, code, and deliverables become the sole property of the client (Miriam Macip / Commander Mimi) upon payment of the relevant milestone
Developer retains no rights to the Daily MIMI app, codebase, or brand upon completion
Client is entitled to full access to all source code, repositories, and credentials upon final payment

Credentials & Handover
Upon release of Milestone 2 payment, developer provides full handover of:
All source code via repository access (GitHub or equivalent)
App Store Connect access
All API keys and service credentials
RevenueCat account access
Any backend service accounts created for this project

I need someone with experience in PHP and Android/iOS to review the security of my website regarding users, payments, and general security. The ideal candidate will have a strong background in penetration testing and security analysis to ensure our systems are protected against potential threats.

I’m building a streamlined buy-and-sell marketplace like https://www.olx.in/, Quikr and Facebook Marketplace. The project has two visible touch-points—a fully responsive website (must look equally good on desktop, tablet and mobile) and a native Android app—plus a lightweight admin console behind the scenes.

Core user flow
• New users register with their phone number and confirm via OTP.
• Sellers create listings with title, description, price, quantity, location and up to several photos, then update or remove them any time.
• Buyers browse all listings or narrow results with category, location and price-range filters, open listing details, call the seller directly and save favourites for later.
• No payment gateway is needed; all negotiation happens outside the platform.

Profiles & data
Every account has a basic public profile so trust can build over time. All images should be compressed on upload to keep the experience fast on slower devices.

Admin panel
I’ll need a simple dashboard to view key stats, manage users and listings, and flag or delete spam. Basic analytics (active users, number of new listings, most viewed categories, etc.) will help me keep track of growth.

Design direction
The interface should stay clean, minimal and instantly familiar to anyone who has used the reference sites above. Think bold thumbnails, clear typography, intuitive filters and as few steps as possible from search to contact.

Deliverables
• Responsive web application, production-ready
• Native Android app published to Google Play (or prepared APK)
• Admin panel with authentication, user/listing controls and analytics widgets
• Source code, build instructions and a brief hand-over session

Acceptance will be based on:
1. Smooth OTP registration via phone number
2. Creating, editing and deleting listings with multiple images
3. Accurate search and filter results on both web and mobile
4. Direct call action from listing detail page
5. Admin’s ability to remove a reported listing and see the change live within seconds

If you have prior experience with marketplace platforms and can keep the UI fast and uncluttered, I’d love to hear how you’d tackle this build and the tech stack you suggest.

Skills: PHP, Mobile App Development, Android, User Interface / IA, HTML, Web Development, Mobile Development, Database Management, Android App Development, API Development

** German language conversation recording. Project **

Hello!

We’re inviting native German speakers to join our everyday conversation recording project.

The task is simple. You just need to record natural conversations through our app with another participant. No experience or special equipment is required. A quiet place and two smartphones are enough, preferably an iPhone or a newer Android device.

This is an easy opportunity to take part in a language research project, receive a good review, and complete a flexible task from home.

**We need :**
** Two people will complete this task together. Pair up with another **native German speaker** to engage in **spontaneous dialogues** on a variety of topics.
- **No Partner?** No worries! We can help you find one on Upwork.

Be part of something meaningful—**sign up today!**


Project Details
- Talk About What You Love: Choose 7 topics from a list of 20, including themes like education, sports, travel, and more.
- Recording Time: Each topic requires a minimum of 20 minutes, totaling 2 hours and 20 minutes per pair.
- Payment: You’ll earn $20 per hour, which means $50 per person for completing the project.
As a pair, you’ll earn a total of $100!

---
Requirements
- A Smartphone: A good-quality phone is required. iPhones are preferred but not mandatory.
- A Quiet Space: Record in a noise-free environment.
- **A Partner is Required:** You’ll need a conversation partner for this project ( 2 people will do this task together) . If you don’t have one, no problem! We can help you find another native speaker on Upwork to do this task together.
---

Additional Information
- One-Time Opportunity: This project is only available to new participants who haven’t previously completed it on the FunCrowd app.


- Avoid Duplicate Recordings:
If you’ve already recorded this same task on the FunCrowd app, you are not eligible to participate again. Recording the same task twice will be considered invalid.
- Please refrain from applying if you’ve participated in this task recently.

Completing this project successfully offers a valuable opportunity for new freelancers to gain experience and receive a 5-star review

Join us and be part of an exciting project

I need a small, self-contained module that lets me verify a person’s identity by having them scan a WeChat-generated QR code. When the code is scanned, WeChat should return a secure callback confirming the user’s OpenID (or UnionID) so I can treat the scan as proof of identity.

Here’s what I expect:

• Your code requests a temporary QR login ticket through the official WeChat API, displays the QR, and listens for the scan/confirmation event.
• Once WeChat confirms the scan, the module captures the user’s unique identifier and any standard profile fields the API makes available, then passes that data back in JSON so I can store or act on it.
• Clear instructions on obtaining the necessary AppID, AppSecret, and setting the callback domain in the WeChat Open Platform dashboard.
• A quick test page or Postman collection so I can prove the flow end-to-end on my own sandbox account.

I’m open to PHP, Node.js, or Python—choose whichever you’re fastest with, but structure it cleanly so I can drop it into a larger project later. Well-commented code and a short README are all I need for delivery.

Skills: PHP, Java, Python, Android, Software Architecture, Node.js, Web Development, API Development

I’m building a privacy-focused chat app for both Android and iOS and I need a polished visual entrance for it. The first item is a clean, minimalistic app icon built around a simple logo mark—no speech bubbles, just a refined shape that instantly signals messaging without clutter. The palette should stay within muted, pastel tones so it feels calm and modern on any home screen.

Alongside the icon, I also want a short onboarding / launch animation that plays the very first time the app opens (think of Signal’s gentle reveal). It should take the same logo, animate it smoothly for two-to-three seconds, and transition naturally into the main UI. Subtle movement and soft easing are key; nothing loud or gimmicky.

Deliverables:
• App icon exported for all required Android and iOS resolutions, plus the master vector/source file.
• Onboarding animation supplied as Lottie JSON (or an equally lightweight format) and the original After Effects or motion source file.

I’ll provide the current wireframes so you can match proportions. Let me know your typical turnaround and any questions you have about the brand direction.

Skills: Graphic Design, Logo Design, Animation, Icon Design, App Design, UI / User Interface, 2D Animation, 2D Animation Explainer Video

I’m getting ready to release a brand-new mobile app that will be available on both iOS and Android, and I need a punchy video ad to introduce it to the world. The spot should quickly explain what the app does, show off its most exciting benefits, and leave viewers eager to download.

Here’s what I’m after:
• A short, engaging concept and script that communicates the app’s core value in plain language.
• Eye-catching visuals or screen captures that demonstrate key features on real devices.
• Professional voice-over and background music that match the upbeat, forward-looking tone of a fresh tech launch.
• Final delivery in HD (16:9) plus any common social-media-friendly ratios you recommend, ready for me to post the moment the app hits the stores.

I’ll supply brand assets, basic feature lists, and app footage as soon as we kick off. If you can handle everything from creative ideation through post-production and give guidance on optimal runtime and formats, even better. Let me know your workflow, how many revision rounds you include, and links to previous mobile-app ad work so I can see your style in action.

Skills: Audio Services, Video Services, iPhone, Voice Talent, Video Production, Video Editing, Voice Over, Script Writing

Native United Kingdom (UK) English Conversation Recording Project

We’re looking for native UK English speakers to record natural, casual conversations using our application. The topics are simple and relatable—such as sports, entertainment, music, relationships, and everyday life.

Requirements

• Device: Smartphone only (new Android or iPhone is recommended)

• Environment: Quiet, echo-free room (prefer furnished room for recording)

• Participants: Each session requires two people in conversation

• If you already have a partner—wonderful!

• If not, we can pair you with someone via Upwork

Recording Time

• Choose 7 topics

• Record at least 20 minutes per topic

• Total recording duration: 2 hours 20 minutes (for each pair)

Compensation

• $25 per hour per person

• Complete the full session (2.5 hours) to earn $62.5 per person

• Total payment for both participants: $125

Eligibility

• No professional experience needed

• Open to new participants only means if you have already completed this same conversation task on Funcrowd App then you are not eligible.

(Anyone who has already completed this same project on the Funcrowd application is not eligible)

• Each person can participate only once

(Duplicate recordings will be considered invalid)

Bonus

• Receive a 5-star score upon successful completion

This is an enjoyable and straightforward task with a fantastic chance to earn and receive a 5★ review.

This app is near completion, I have attached a working prototype below and only need some adjustments. The character pushing the boulder up the hill needs refined. The entire artwork is made up of separate sprites layered and moving at different speeds to emulate movement. This movement needs to look more fluid and accurate while he pushes the boulder up the hill.

The project is written in react and you should be confident you can improve the movement mechanics to look more similar to the video attached.


Project Overview: The Ascent

Simplicity is key, this is essentially a one page app. Endless runner style sprites coming across the screen. I have all illustrations and layers already made. Below is a link to the almost complete app.


OVERVIEW: The Ascent is a minimalist, high-performance mobile focus app designed for iOS and Android. It translates the ancient Greek myth of Sisyphus into a powerful, game-like psychological anchor for daily productivity.

1. The Core Experience
Upon starting a session, users select their focus duration (e.g., 25, 45, or 60 minutes). The app transitions to a clean, distraction-free screen where Sisyphus endlessly pushes a low-poly crimson boulder up a steep 33° slope. Background layers (terracotta mountains and shifting clouds) scroll past to create a sense of scale, while a precise, real-time HUD tracks their climbing lifetime elevation progress down to five decimal places (e.g., 0.12450 MI).


https://the-ascent.expo.app/

Skills: Mobile App Development, iPhone, Android, iOS Development, React Native

HealthSync AI™ Enterprise & Consumer Platform – Development, Cloud Deployment, and Play Store Launch

We are looking for an experienced full-stack developer or small development team to help us take our AI-powered healthcare platform from a working prototype to a production-ready, scalable SaaS application.

HealthSync AI™ is an AI-powered health tracking and wellness platform designed for individuals, employers, healthcare organizations, schools, and government wellness initiatives. The platform combines personalized health insights, preventive wellness, population health analytics, and enterprise health equity dashboards while maintaining strict privacy and security standards.

Project Scope

We have already built a functional application and now need an experienced professional to:

Deploy the application to Google Cloud Platform (GCP)
Prepare and publish the Android app to Google Play Store
Optimize the platform for scalability (100,000 to 1,000,000+ users)
Improve security and production readiness
Configure CI/CD pipelines
Optimize application performance
Set up monitoring, logging, and automated backups
Configure production databases
Implement production authentication and security best practices
Required Skills

We're looking for experience with:

Google Cloud Platform (GCP)
Kubernetes or Cloud Run
Docker
PostgreSQL
Node.js
React / Next.js
REST APIs
AI integration
Mobile app deployment
Google Play Console
Authentication (JWT, OAuth)
Cloud security
Performance optimization
Database scaling
CI/CD
GitHub

Healthcare software experience is highly preferred.

Preferred Experience

Experience with:

HIPAA-compliant applications
Healthcare SaaS platforms
Enterprise software
AI-powered applications
Multi-tenant architecture
Secure cloud infrastructure
Large-scale production systems
About HealthSync AI™

HealthSync AI™ includes:

AI-powered health assistant
Personal health tracking
Medication management
Nutrition tracking
Activity and fitness tracking
Wearable device integration
Preventive health recommendations
Executive dashboards
Population health analytics
Employee wellness platform
Enterprise health equity reporting
Organization-level analytics
Secure role-based access
Multi-tenant architecture
Mobile and web applications
Deliverables

The selected freelancer/team will help us deliver:

Production-ready cloud deployment
Secure and scalable infrastructure
Google Play Store publication
Production database configuration
Performance optimization
Documentation
Deployment guide
Knowledge transfer
Post-deployment support (optional)
Communication

We value:

Clear and proactive communication
Weekly progress updates
Documentation of major decisions
Ability to explain technical concepts in business terms
Collaborative problem solving
How We Like to Work
Agile development
Milestone-based deliverables
Frequent demonstrations of completed work
High code quality
Clean architecture
Security-first mindset
Long-term partnership preferred
Ideal Candidate

You have successfully deployed scalable SaaS applications, preferably in healthcare or regulated industries. You understand cloud architecture, security, mobile app publishing, and production operations. You're comfortable taking an existing application, improving it, and preparing it for large-scale public launch.

If you've launched products serving hundreds of thousands or millions of users, we'd love to hear about your experience and see examples of similar projects.

Tengo ya una hoja de Excel con todas las fórmulas y los campos que usamos para calcular las horas de cada trabajo; ahora quiero convertirla en una aplicación muy sencilla para teléfonos Android, de modo que mis operarios solo tengan que abrir la app, escribir sus datos y ver el resultado al instante.

Compartiré contigo:
• El archivo Excel que contiene el cálculo exacto.
• Un borrador de formulario que preparé en Microsoft Forms con el flujo de pasos recomendado.

Lo que necesito que reproduzca la aplicación:
• Un formulario de entrada de datos manual con campos claros y botones grandes.
• Cálculo automático de horas basado en las mismas fórmulas del Excel (el resultado debe coincidir al céntimo de hora).
• Un resumen de horas trabajadas que se muestre al finalizar la carga o pueda consultarse después.

La conexión a Internet no es un requisito decisivo; si la app funciona offline y sincroniza cuando haya red será perfecto, pero no es obligatorio.

Prefiero un desarrollo ligero (native Android, Flutter o React Native, por ejemplo) antes que una solución en Power Apps, aunque acepto sugerencias si puedes mantenerla igual de simple para el usuario final.

Entrega esperada:
• APK lista para instalar y probar.
• Código fuente con instrucciones breves de compilación.
• Documento corto que explique cómo añadir o modificar campos/formulaciones en caso de cambios futuros.

Validaré la app comparando sus resultados con mi hoja Excel usando varios casos de prueba. Una vez coincidan, el proyecto se considerará finalizado.

Skills: Mobile App Development, Excel, Android, C# Programming, React Native, Flutter, Mobile Development, Android App Development

I'm developing a polished iOS mobile game called AlphaFuse.

AlphaFuse is a satisfying merge game where players combine letters of the alphabet:

A + A = B
B + B = C
...
Eventually reaching Z, then progressing into additional alphabets and finally Fusion levels.

The game is designed to be relaxing, satisfying, and rewarding rather than stressful. The audio should make every merge feel satisfying while remaining pleasant even after thousands of repetitions.

I'm looking for a sound designer to create a complete, cohesive sound identity for the game—not just a collection of random sound effects.

Every sound should feel like it belongs to the same universe and reinforce the feeling of smooth progression and accomplishment.

Native Argentina Spanish Conversation Recording Project

Participate in Our Argentina Spanish Conversation Recording Project!

We’re inviting native Argentina Spanish speakers to take part in a relaxed and engaging conversation recording project to support cutting-edge language research.

What’s involved?
Simply record natural, everyday conversations with a partner using our user-friendly app. No prior experience or special equipment needed, just two smartphones, iPhones or new Android devices, and a quiet space.

It’s a great opportunity to contribute to linguistic research, receive positive feedback, and enjoy a fun, laid-back experience.

Work rules:

* Team Up: Two people will complete this task together. Pair up with another native Argentina Spanish speaker to engage in spontaneous dialogues on a variety of topics.
* No Partner? No worries! We can help you find one on Upwork.

Be part of something meaningful, sign up today!

Project Details

* Talk About What You Love: Choose 7 topics from a list of 20, including themes like education, sports, travel, and more.
* Recording Time: Each topic requires a minimum of 20 minutes, totaling 2 hours and 20 minutes per pair.
* Payment: You’ll get $5 per hour, which means $12.5 per person for completing the project.
As a pair, you’ll get a total of $25!

⸻

Requirements

* A Smartphone: A good-quality phone is required. iPhones are preferred but not mandatory.
* A Quiet Space: Record in a noise-free environment.
* A Partner is Required: You’ll need a conversation partner for this project. Two people will do this task together. If you don’t have one, no problem! We can help you find another native speaker on Upwork to do this task together.

⸻

Additional Information

* One-Time Opportunity: This project is only available to new participants who haven’t previously completed it on the FunCrowd app.
* Avoid Duplicate Recordings:
If you’ve already recorded this same task on the FunCrowd app, you are not eligible to participate again. Recording the same task twice will be considered invalid.
* Please refrain from applying if you’ve participated in this task before .

Completing this project successfully offers a valuable opportunity for new freelancers to gain experience and receive a 5-star review.

Join us and be part of an exciting project!

About the Project

We are looking for an experienced Flutter development team or senior Flutter developer to build a premium multi-vendor fashion marketplace for the UAE, with future expansion across the GCC.

This is not a basic e-commerce application. The platform includes marketplace workflows, buyer/seller interactions, secure marketplace payments, escrow functionality, logistics integration, AI-powered features, luxury item authentication, business analytics, financial reporting, and a complete admin dashboard/CRM.

We are looking for professionals with proven experience building scalable, production-ready marketplace applications.


What We Are Looking For

We are looking for a long-term technology partner, not simply someone to complete a one-time project.

We value:

* High-quality development
* Clean and scalable architecture
* Excellent communication
* Transparency throughout the project
* Realistic timelines
* Attention to detail
* Experience building production-ready marketplace applications

Quality, reliability and long-term collaboration are more important than selecting the lowest-priced proposal.

We welcome recommendations and constructive feedback if you believe certain features should be approached differently or delivered in phases.

Preferred Technology

The mobile application must be developed using Flutter.

Scope of Work

Mobile Application

* Flutter application for iOS & Android
* Responsive UI/UX
* Clean architecture
* Scalable codebase
* Production-ready application


User Authentication & Account Management

* Secure Registration & Login
* Email OTP verification
* Phone OTP verification
* Remember Me functionality
* Forgot Password
* Buyer and Seller profiles
* Ability to switch seamlessly between Buyer and Seller menus within a single account
* Profile management
* Seller identity verification (KYC / ID verification)
* Account settings
* Notification preferences

Seller verification should support:

* Automatic identity verification (Selfie + Government ID)
* Verification status
* Manual admin review (if required)

- Google Sign-In
- Apple Sign-In

Marketplace

The platform focuses on premium and luxury fashion products for men. Women and kids.

Supported categories include:

* Clothing
* Bags
* Shoes
* Watches
* Jewelry
* Accessories
Luxury item category
For brands or individuals.

Marketplace features:

* Create listings
* Edit listings
*Duplicate listing
* Report listing
* Delete listings
* Draft listings
* Maximum 5-6 photos per listing
* Product availability status
* Seller profile pages
* Product moderation
* Bundle listings
* Wishlist / Favorites
* Share listing

Product Details

Each product page should support:

- Date listed
- Product title
- Brand
- Category
- Size
- Material
- Condition
- Description
- Product price
- Product status (Available / Reserved / Sold)
- Seller information
- Authenticity badge (where applicable)
- Number of views (if applicable)
- location ( Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah or Umm Al Quwain)

Product Discovery

Search should include:

* Keyword search
* Brand search
* Category search

Filters:

* Category
* Brand
* Price
* Size
* Material
* Condition

Sorting:

* Newest
* Price Low to High
* Price High to Low
* Popularity / Trending

Recommended products should also be supported.

Buyer Features

* Product details page
* Shopping cart
* Secure checkout
* Purchase history
* Order tracking
* Reviews & Ratings
* Wishlist
* Recently viewed products

Seller Features

Seller Dashboard including:

- Dashboard overview
- Active listings
- Sold listings
- Draft listings
- Listing management
- Sales overview
- Sales analytics
- Earnings dashboard
- Wallet
- Pending balance
- Available balance
- Withdrawal requests
- Withdrawal status
- Transaction history
- Order management
- Offers received
- Seller statistics
- Boost management

Offer & Negotiation System

The marketplace should support:

* Buyer offers
* Seller accept
* Seller decline
* Counter offers
* Offer expiration
* Offer history
* Push notifications

Marketplace Payments

Preferred payment solution: Stripe Connect (or equivalent marketplace payment solution if properly justified).

The marketplace payment flow should support:

* Escrow payment workflow
* Seller onboarding
* Platform commission
* Seller payouts
* Pending seller balance
* Available seller balance
* Automatic release of seller funds after buyer protection period
* Refund & dispute payment freeze
* Failed payment handling
* Failed payout handling
* Complete transaction history
* VAT calculation

Shipping & Delivery

The platform will integrate with Jeebly

Required functionality includes:

* Shipment creation
* Pickup requests
* Pickup scheduling
* Shipment tracking
* Delivery status updates
* Synchronization between courier status and order status
* Delivery confirmation linked to escrow release

Order Lifecycle

The marketplace should support the complete order lifecycle including:

- Order placed
- Payment successful
- Seller notified
- Seller accepted
- Seller shipped
- Courier pickup
- In transit
- Delivered
- Buyer confirmation
- Buyer protection period
- Escrow release
- Refund / Dispute
- Order completed

Wallet

Seller wallet should include:

* Pending balance
* Available balance
* Transaction history
* Commission breakdown
* Platform fees
* Withdrawal requests
* Withdrawal status

Chat & Messaging

Complete buyer/seller messaging including:

* Inbox
* Conversation list
* Real-time messaging
* Messages linked to products
* Messages linked to offers
* Messages linked to orders
* Push notifications
* Message history
* Block user
* Image sharing

Safety & Moderation

- Report user
- Report listing
- Block user
- Admin review & moderation


User Push Notifications

Users should receive push notifications for:

- New messages
- New offers
- Offer accepted / rejected / counter offer
- Order updates
- Delivery updates
- Payment confirmation
- Refund & dispute updates
- Seller verification status
- Wallet updates
- Boost activation & expiration
- Promotions (optional)

Admin access to conversations during disputes is considered a plus.

Admin Notifications

The Admin Dashboard should receive notifications for important marketplace events including: ( by color / importance )

- New listing submitted
- Listing reported
- User reported
- Seller verification submitted
- ID verification submitted
- New order
- Order cancelled
- Refund request
- New dispute
- Buyer offer
- Counter offer
- Seller withdrawal request
- Failed payment
- Failed payout
- Failed delivery
- Boost purchased
- Boost expired

Luxury Marketplace Features

Luxury products should support:

* Authenticity document upload
* Identity verification
* Admin review
* Approval / Rejection
* Verification badge


AI Features

The platform should support AI-powered features such as:

* AI-powered background removal for listing photos ( remove bg )
* AI image processing
* AI-generated product descriptions (optional)
* Future AI integrations

Influencer Closet

The application should support an Influencer Closet feature allowing administrators to:

* Create influencer profiles
* Upload influencer photos
* Associate products with influencer collections
* Manage influencer content directly from the admin dashboard without requiring a new app release


Boost System

The marketplace should support paid Boost packages including:

* Multiple Boost plans
* Checkout
* VAT calculation
* Automatic activation
* Automatic expiration
* Increased product visibility
* View statistics
* Admin management of Boost packages
Performance statistics
* Clicks / Views generated by the boost

⸻

Admin Dashboard / CRM

A complete web-based Admin Dashboard is required.

The Admin Dashboard should allow the marketplace to be fully managed internally without depending on the development team after launch.

User Management

* Buyer & Seller management
* View user profiles
* User activity & history
* Suspend / Block / Reactivate users
* Seller verification management
* ID verification review & approval
* Reported users management

Product Management

* Approve / Reject listings
* Edit or remove listings
* Product moderation
* Bundle moderation
* Reported products
* Add rejection reasons
* Manage product categories, brands and attributes

Order Management

* View and manage all orders
* Track the complete order lifecycle
* Monitor payment status
* Monitor delivery status
* Connect order status with courier tracking

Refund & Dispute Management

* Review refund - cancel requests
* Review uploaded evidence/photos
* Approve or reject refunds
* Manage disputes
* Freeze seller payouts when required
* Track dispute history and resolution

CRM & Customer Support

The Admin Dashboard should include CRM functionality allowing customer and seller management.

Required features:

* Customer & Seller profiles
* Support ticket management
* Reply directly from the Admin Dashboard
* Conversation history
* Ticket status (Open / Pending / Resolved)
* Internal admin notes
* User communication history

Financial Management

The system should provide complete financial visibility including:

* Gross Marketplace Revenue (GMV)
* Platform commission
* VAT reporting
* Seller payouts
* Payment gateway fees
* Delivery fees collected
* Delivery costs
* Delivery margin
* Refunds
* Boost revenue
* Net revenue / Profit

Marketplace Analytics

The dashboard should include business KPIs such as:

* Total users
* Active buyers
* Active sellers
* Listings created
* Active listings
* Completed sales
* Conversion rate
* GMV
* Revenue performance
* Top sellers
* Most viewed products
* Most saved products

⸻

Reports & Accounting

The Admin Dashboard should allow exporting reports in Excel (.xlsx) and CSV.

Reports should include:

* Orders
* Sales
* VAT
* Platform commissions
* Seller payouts
* Payment gateway fees
* Transaction history
* Refunds
* Delivery fees collected
* Delivery costs
* Delivery margin
* Boost revenue
* Net revenue

Available export periods:

* Daily
* Weekly
* Monthly
* Yearly
* Custom date range

⸻

Marketing & Analytics

The application should support:

Integrations

* Meta Pixel / Meta Events Tracking
* Firebase Analytics
* Marketing automation integrations
* CRM integrations

Tracked Marketplace Events

* Seller Registration
* Seller Verification Completed
* Add Payment Method
* Withdrawal Request
* Boost Purchase
* Product View
* Search
* Add to Wishlist
* Add to Cart
* Checkout Started
* Purchase Completed
* Listing Created
* Seller Activity

Deliverables

The selected development team should provide:

* Complete Flutter source code
* Backend source code
* Complete Admin Dashboard
* API documentation
* Technical documentation
* Deployment documentation
* App Store submission & publication
* Google Play submission & publication
* Firebase ownership transfer
* Source code ownership transfer
* Admin credentials
* Knowledge transfer
* Post-launch support

- Full testing before delivery
- Bug fixing before production release
- UAT (User Acceptance Testing) support

Preferred Experience

Experience with the following is highly preferred:

* Multi-vendor marketplace applications
* Flutter
* Firebase
* Stripe Connect
* Escrow payment workflows
* UAE / GCC payment gateways
* Courier API integrations
* CRM & Admin Dashboard development
* AI integrations
* Luxury marketplace platforms

The solution should be built using a modular and scalable architecture to support future features, increased traffic, and expansion across the GCC.

Please include a detailed breakdown of your proposed solution, timeline, milestones, and payment schedule.

Required Questions

To be considered, please answer the following questions:

1. Have you previously built a multi-vendor marketplace application?
If yes, please provide links to live apps or case studies and briefly explain your role in the project.

2. Have you previously built applications with marketplace workflows such as seller onboarding, KYC verification, escrow payments, seller payouts, dispute management, or courier integrations?
Please describe your experience and provide relevant examples.

3. Do you have experience developing applications for the UAE or GCC market?
If yes, please describe your experience.
If not, this is not a deal breaker, but please explain how you would approach local payment systems, logistics and marketplace requirements.

4. Based on the scope above, what would be your realistic estimated timeline and budget?

5. What do you believe is your biggest advantage compared to other teams applying for this project?

6. Please share the two or three projects that are the most similar to this marketplace and explain why they are relevant.

7. Who will be my main point of contact throughout the project, and who will be directly involved in the development?

8. What post-launch support and warranty do you provide after delivery?

9. Based on the scope above, do you see any technical risks, missing requirements or recommendations that could improve the project?

Please answer each question individually.

Please begin your proposal with the words:

UAE Marketplace

Generic proposals, company profiles or AI-generated responses without project-specific answers will not be considered.

If you believe any feature listed above should be implemented differently or deferred to a second phase, please clearly explain your reasoning and indicate any impact on the timeline and budget.

We look forward to reviewing your proposal and potentially building a long-term partnership with the right team.

I need a developer who can build a mobile app including its backend. The app should work on both iOS and Android. I do not have technical preferences, whatever is recommended. The details of the project will be disclosed to the selected candidate. I will need an estimation of the entire project. Should have proven experience in the given skills.

We're building NeoFocus, an AI-powered IoT device paired with a mobile/web app that helps foster carers and parents detect early signs of mental health issues (PTSD, anxiety, depression, ADHD) in children through facial expression and behavioral pattern analysis. We're looking for an engineer to build a working prototype: an intelligent camera (IoT) device that captures images, an image-processing pipeline using SVM/CNN classifiers to detect emotional states, and a companion mobile app that displays alerts and history to caregivers. Experience with computer vision, embedded/IoT hardware integration, and mobile app development (iOS/Android) is required. Full business plan and technical requirements available to share with the right candidate.

We are seeking an experienced freelancer from the Philippines, India, or Bangladesh to develop custom mobile apps with AI integration. The AI technology will be provided by our company. The ideal candidate should have a strong background in mobile app development and be able to deliver high-quality solutions at a competitive rate. Experience in both iOS and Android platforms is essential.

We are looking for an experienced Flutter developer to build an AI-powered photo enhancement app similar to Remini for Android and iOS.

The app should include:

User Login (Google, Apple, Email)
AI Photo Enhancement & Face Enhancement
Image Upscaling (HD Quality)
Remove Blur & Restore Old Photos
Before/After Comparison
Download & Share Images
Image History
Credit System & Subscription Plans
Firebase Integration
Clean, Modern UI
REST API Integration for AI processing

The app should be fast, responsive, and production-ready with clean, well-structured code.

Please share:

Similar apps you've built
Estimated timeline
Estimated cost