Optimize Freelance Projects with Amazon S3

We're launching a digital tech brand and need a full-stack developer to design and deploy our landing page on AWS.

We’re looking for someone who can:

Design a modern, responsive landing page (SaaS/tech style preferred)

Deploy the site using AWS S3 (static website hosting)

Configure DNS using Route53 for a domain that is already purchased

Include a contact form and a simple call-to-action button

Ensure performance, scalability, and a clean structure for future improvements

Must have:

Experience with AWS S3 and Route53 setup

Strong front-end design skills (Tailwind, Webflow, Carrd, or similar)

Good communication and independent execution

Nice to have:

Spanish-speaking (optional)

Experience with SEO basics or lead generation structure

Details:

Fixed-price project: $100–$150

Delivery: within 4–5 days

Potential for ongoing work

To apply:
Send:

A short intro

A portfolio sample of a similar project

Your preferred tools or stack

Estimated timeline

We’re looking for reliability, clean design, and fast delivery.

• Describe your recent experience with similar projects
• Include a link to your GitHub profile and/or website
• What frameworks have you worked with?

Expert team looking to multiply efforts and hiring a top-tier AWS/Node.js engineer to lead a fast, production-grade migration of our media stack. This is an infrastructure-only project, with no app logic changes and no hand-holding. You’ll handle Cloudinary → S3/CloudFront asset migration, deliver a full risks/QA checklist, and stand up Mux for video support.

Requirements: Only apply if you are an expert.
• You’ve shipped S3/CloudFront setups at scale
• You’ve built asset pipelines with Cloudinary, Mux, or both
• You write clean Node.js and speak IAM fluently

You move fast, document well, and don’t need supervision.

Scope & Deliverables:
• Migrate all assets from Cloudinary to S3 using Node.js (API-based, not CLI)
•Configure S3 buckets (per-business), IAM policies, lifecycle rules
• Set up CloudFront with custom domain (media.gonation.com), compression, cache headers
• Build full URL mapping log (Cloudinary → CloudFront)
• Deliver QA checklist (risk triggers, edge cases, validation steps)
• Stand up Mux: encoding, playback, storage, usage monitoring
• Deliver complete Terraform or IaC scripts + integration handoff

Bonus Points:
• Terraform master
• Sharp/Lambda image pipeline experience
• CDN tuning /cost optimization

Timeline: 7 days max (Project should take an expert 20-25 focused hours) with help from ChatGPT. We will provide an exact task list with estimated time for each task to help.
Only reach out if you’ve done something like this before and can show receipts.

• You're migrating 1.4M Cloudinary images to S3 with CloudFront and a custom domain. Provide a URL mapping log and set up production-ready infra via Terraform. In 7 steps or less, explain your approach, including naming, permissions, and success validation.

Need a Salesforce Apex, Javascript developer assistance for a job to bring a Salesforce Appexchange App up to Salesforce API version 45 or greater for the Salesforce Summer 2025 Salesforce enforcement. This happens on June 14th 2025.
The code of our Appexchange app needs to be reviewed and minor adjustments to ensure it can pass the test run for API 45 or higher. It is believed this primarily determines whether your org is using ICU or JDK locale formats and adjusting the codebase but there may be other aspect that need a look. The app has REST web service call to AWS S3, although the S3 aspect is not believed to be part of updating the code to be compliant for Summer 2025 API enforcement. So knowledge of AWS S3 REST API would be helpful.

10 Apex controllers in our app have been identified that need to be updated to API 45 or higher (see image). There may be more and the developer assisting us will need to run the test to see if any more need adjustments.

--Additional info from the Salesforce website to be compliant with Summer 2025 API 45 or greater enforcement---
Custom code and components that use API version 44.0 or earlier can’t reference the ICU locale formats because they don’t exist in that API version. In that case, the custom code and components return the JDK locale formats, even if ICU locales are enabled in the org.

Each Visualforce page, Apex class, and Apex trigger has an API version. The initial API version is always the API version of your Salesforce org when the component is created.

A new API version is available with each Salesforce release. However, Salesforce doesn’t update the API version of your Apex classes, Apex triggers, and Visualforce pages because we can’t test them for any potential issues. Ideally, you update the API version for your components and validate the code with each release, but sometimes that doesn’t happen. Therefore, for example, it’s possible for an Apex class to use API version 41.0 in an org on API version 63.0.

Salesforce Partners and independent software vendors (ISV) also use Apex classes, Apex triggers, and Visualforce pages to deliver functionality within their packages. ISVs are responsible for updating the API versions of their package components.

Example Scenario and Potential Errors
What’s the expected impact for an org has ICU locale formats enabled, and Apex Classes, Apex Triggers and Visualforce Pages that don’t meet the minimum required API version 45.0?

Example of the difference:

JDK short date format for es_US: MM/dd/yyyy (example: 2/11/2021)
ICU short date format for es_US: dd/MM/yyyy (example: 11/2/2021)
For an org with ICU locale formats enabled, all standard and custom UI components regardless of API version will display dates in the ICU format as dd/MM/yyyy. Custom components that use version 44.0 or lower will display the incorrect date. For example, the JDK date February 11, 2021 (2/11/2021) will display in the ICU locale format as November 2, 2021 (2/11/2021).

In other scenarios, this month and day mismatch leads to an invalid date. For example, a JDK date of 11/28/2021 (MM/dd/yyyy) results in a ParseException "Invalid Date and Time" error when the ICU locale format tries to display it as (dd/MM/yyyy). The error occurs because there isn’t a 28th month.
----
Also see this webpage for details of what Salesforce is asking:
https://help.salesforce.com/s/articleView?id=xcloud.admin_locales_update_api.htm&type=5

This role requires setting up foundational infrastructure for a new application and developing its initial backend systems. Responsibilities include configuring a shared database like PostgreSQL to facilitate collaborative development. Additionally, an appropriate hosting environment such as AWS must be established alongside deployment guidelines. The backend implementation will create an API project preferably in C# along with authentication and API endpoints. An ORM will enable database interactions. Upon completion, clients will receive a functional app featuring login, APIs, and comprehensive documentation on the database and deployment processes. A strong technical background in infrastructure configuration, backend development expertise in languages like C#, and experience deploying applications through pipelines are necessities for this role.

Shanav Technologies is looking for an experienced AWS Cloud Engineer or DevOps Consultant to assist in hosting a new workload on the AWS Cloud. The project involves setting up and configuring core AWS infrastructure components to ensure a secure, scalable, and efficient environment. you can visit shanav com to connect through contact us option

We are seeking a highly motivated and visionary AWS Cloud Solutions Architect to lead strategic cloud transformation initiatives and design modern, scalable architectures. The ideal candidate is a self-starter, a strong communicator, and a thought leader with deep expertise in cloud architecture and a passion for emerging technologies such as IDP, AI, GenAI, and microservices. This role will require assessing and optimizing existing AWS environments while also designing solutions from scratch that align with business goals and enterprise architecture standards.



Key Responsibilities

Lead assessments of current AWS architectures to identify issues related to performance, cost, reliability, and security.
Design secure, scalable, cost-optimized AWS architectures for greenfield and modernization projects.
Recommend actionable remediation strategies and guide implementation.
Develop cloud-native solutions using microservices, containerization (EKS, ECS), and serverless technologies (Lambda, Step Functions).
Drive adoption of cutting-edge technologies including Generative AI, LLMs, and AWS AI/ML services like Amazon Bedrock, SageMaker, and Amazon Q.
Conduct well-architected reviews and align designs to AWS and enterprise best practices.
Collaborate with cross-functional stakeholders including business, development, operations, and security teams.
Provide leadership, mentorship, and thought leadership across cloud and AI initiatives.
Maintain knowledge of latest AWS services and trends in cloud strategy, enterprise IT, and digital innovation.


Required Qualifications

18+ years of IT experience with 12+ years in architecture roles, primarily within AWS environments.
Proven ability to design and deploy complex cloud solutions and modern application architectures.
Deep knowledge of AWS core services, cloud-native architecture, and cloud governance.
Experience with performance tuning, cost optimization, and operational excellence on AWS.
Expertise in microservices architecture, container orchestration (Kubernetes), API management, and event-driven design.
Strong communication skills with the ability to present and justify architectural decisions to executive stakeholders.
AWS Certifications such as AWS Certified Solutions Architect – Professional or relevant specialty certifications.
Demonstrated experience in AI/ML, GenAI, and implementation of intelligent applications using AWS or third-party AI tools.


Desired Skills

Familiarity with TOGAF (The Open Group Architecture Framework) and other enterprise architecture methodologies (e.g., Zachman, FEAF, Gartner).
Experience working within large enterprise IT landscapes and aligning solutions to enterprise architecture standards.
Exposure to multi-cloud environments (Azure, GCP) and hybrid cloud strategies.
Experience with Infrastructure as Code (Terraform, CloudFormation), CI/CD pipelines, observability, and cloud security frameworks.
Knowledge of compliance and governance standards (e.g., HIPAA, GDPR, ISO 27001).
Experience in stakeholder engagement and business architecture alignment.

We’re running a self-hosted Strapi CMS and need to offload media and file uploads to an AWS S3 bucket for durable, scalable storage. Your task is to install and configure the official (or community) S3 upload provider plugin in our Strapi project, wire up credentials, and verify file uploads are persisting correctly in S3.

Scope of Work:

Install and configure the Strapi S3 upload plugin (e.g. strapi-provider-upload-aws-s3).

Create or update config/plugins.js (or ./extensions/upload/config/settings.json) with AWS credentials, bucket name, region, and ACL settings.

Ensure Strapi file uploads (media library) store and serve files from S3.

Implement any necessary IAM policy or bucket CORS configuration.

Test end-to-end: upload, retrieve, and delete files via Strapi’s admin UI and REST/GraphQL API.

Provide a short README or documentation of the steps taken and any config files.

Deliverables:

Fully configured Strapi project with S3 upload provider installed.

Verified AWS S3 bucket receiving new uploads.

Documentation detailing plugin installation, configuration settings, and testing commands.

Skills & Experience:

Proven Strapi CMS experience (v3 or v4)

Hands-on with strapi-provider-upload-aws-s3 (or equivalent)

Strong AWS S3 knowledge: buckets, IAM roles/policies, CORS

Node.js and JavaScript configuration skills

Ability to write clear, concise documentation

We are looking for a skilled AWS Engineer to join our dynamic team and take ownership of maintaining and improving our long-term cloud infrastructure for a large-scale e-commerce platform.
Overview: Our e-commerce system is built on a modern AWS architecture with the following core components:
- Amazon EKS (Elastic Kubernetes Service) for container orchestration
- Network Load Balancer (NLB) to handle high-throughput traffic efficiently
-AWS Lambda for event-driven microservices
- Amazon SQS for decoupled communication between services
- Security-focused design including IAM, Security Groups, VPC, and encryption
We are scaling rapidly and need a dedicated engineer to maintain, monitor, and optimize this infrastructure for long-term stability and performance.
Key Responsibilities:
-Monitor and maintain AWS infrastructure with a focus on reliability and cost optimization
-Ensure security best practices across all services (IAM policies, encryption, audit logs)
-Manage and update EKS clusters, NLB configurations, and VPC networking
-Implement and troubleshoot Lambda functions and SQS message flows
-Collaborate with DevOps and development teams to support CI/CD pipelines and deployments
-Handle incidents, perform root cause analysis, and proactively prevent downtime
Requirements:
-Strong hands-on experience with AWS, especially EKS, NLB, Lambda, and SQS
-Solid knowledge of Kubernetes and containerization best practices
-Experience with Terraform, CloudFormation, or similar IaC tools
-Familiarity with security configurations in AWS (IAM, Security Groups, KMS)
-Ability to work independently in a remote, fast-paced environment
-Excellent problem-solving and communication skills
Nice to Have:
Experience in e-commerce or high-traffic systems
Familiarity with monitoring tools (CloudWatch, Prometheus, Grafana, etc.)
AWS certifications (e.g., Solutions Architect, DevOps Engineer)

Hi, I have a cloud-based platform already deployed on AWS. I need a few small but important adjustments to improve functionality. The platform uses AWS Lambda, API Gateway, S3, and CloudWatch.

Here’s what I need:

Fix a Lambda function that isn’t triggering as expected

Adjust S3 bucket permissions for public file access

Update CloudWatch log settings for better retention

Minor tweaks to the CI/CD pipeline using GitHub Actions

The infrastructure is mostly serverless and partially managed via CloudFormation. This is a small task, but I’m looking for someone reliable who can get it done quickly and cleanly.

Budget: $169
Timeline: 2 days

Please apply only if you have experience with AWS and can start immediately. Bonus if you can suggest improvements beyond the current scope.

Thanks!

Project Context: Document Signing & Certificate System (Backend + Frontend)
Overview
We are building a DocuSign-like application that allows customers and managers to sign documents digitally, in a controlled, secure, and traceable flow. The platform includes:

Role-based signature flows (Customer → Manager/Pro)

Type-1 and Type-2 document flows

Certificate of completion attached on finalisation

Integration with an external TAAX app (a third-party API)

AWS S3 for document storage

Tech Stack
Backend: Node.js, Express.js, MongoDB (Mongoose), AWS SDK

PDF Manipulation: pdf-lib

Frontend: React (runs separately as its own service)

Storage: Amazon S3

Notifications/API calls: Axios to communicate with TAAX App

Document Flow
Type-1 Document
Signed only by the customer

Finalised immediately after signature

Final PDF uploaded to S3 as [id]-finalised.pdf

TAAX notified via a backend call

Type-2 Document
Signed by customer first, then manager/pro

Optionally includes a notary event

Finalised only after both parties have signed

Certificate PDF is generated and appended (includes notary info if applicable)

Final PDF uploaded to S3 as [id]-finalised.pdf

All earlier versions deleted (-initial, -customer-signed, -user-signed)

TAAX notified via different API depending on signature stage

Document Versions
Each document has different file versions throughout the signing process:

[id]-initial.pdf – After footer is added

[id]-customer-signed.pdf – After customer signs

[id]-user-signed.pdf – After user signs (if needed)

[id]-finalised.pdf – Final document with certificate attached

Only the final version is retained in S3. The cleanup is handled automatically after finalisation.

Important Backend Details
PDF signatures are applied using coordinates from signatureAreas

Certificate page is generated dynamically with:

Certificate of Completion (COC) data

Record Tracking data

Signer events (IP, timestamp, etc.)

Optional notary block with signature/seal

finaliseWithCertificate handles the signing and finalisation

Each backend method clearly separates logic into reusable helpers (uploadPdfToS3, certificatePDF, etc.)

Third-Party Integration: TAAX
TAAX is an external system that gets notified:

When a document is created (customer link)

When customer signs (user signing link)

When document is finalised

TAAX API endpoints are triggered via axios.post calls from backend helpers like notifyTaaxApp and notifyTaaxAppWithCustomerURL

Goals for Developer
You’ll be expected to:

Understand and contribute to the document lifecycle backend (Express + Mongo)

Improve or extend certificate generation logic using pdf-lib

Help polish React-based signing flows

Maintain AWS S3 integration logic (upload/delete versions)

Collaborate on implementing TAAX integration improvements

Write modular, clean TypeScript/JavaScript code

New tasks:

Implement new document type “Type-3”

Live real-time collaborative editing among 3+ users (websocket/RTCbased)

Role-based permissions: only the professional can save the document

Certificate handling (like Type-1 & Type-2) - Notary section on certificate (editable by professional)

Budget: $350

timeline: 6 weeks
```

NOTE - ONLY APPLY IF OKAY WITH BUDGET !!!

We are seeking a skilled React Native and React developer to assist in enhancing our podcast feature. Your primary responsibilities will include implementing cache-busting for two featured podcast items and adding an upload UI to our admin panel. The ideal candidate should have a solid understanding of both React frameworks and be able to work collaboratively to ensure a seamless user experience. If you have a keen eye for detail and enjoy building intuitive interfaces, we would love to hear from you!

We are seeking a skilled Python developer with expertise in OpenCV to create an AWS Lambda function that segments images using HSV color space. The function should also apply mood-based edits to enhance images, resulting in a final product that boasts a cinematic style. The ideal candidate will have a strong understanding of image processing techniques and AWS services. If you are passionate about creating visually stunning images and have experience with serverless architecture, we want to hear from you!

I’m looking for an experienced AWS developer to set up the core infrastructure for an NB-IoT smart water meter project. The goal is to create a functional pipeline that receives NB-IoT messages, decodes them, and stores the structured data in AWS.

You will be provided with example payloads and decoding logic.
What Needs to Be Built:

1. AWS IoT Core Configuration
Set up AWS IoT Core to receive messages from NB-IoT devices (via MQTT or test simulation)
Create a topic structure using the device ID
Register test devices as IoT Things

2. AWS Lambda Decoder
Build a Python Lambda function to:
Decode binary/hex payloads (structure will be shared)
Extract key fields like IMEI, usage, battery, etc.
Output JSON-formatted data

3. Store Processed Data
Save decoded results to DynamoDB or Timestream
Archive raw payloads in Amazon S3
Set up proper IAM roles and CloudWatch logging

4. Testing & Handoff
Simulate NB-IoT messages to verify the full flow
Confirm that structured data is stored and accessible
Deliver clean code and documentation for continued development

(Optional):
- Set up a basic Flask or FastAPI app with endpoints to query stored data
- Outline ML model flow (SageMaker) for leak or usage anomaly detection

We’re launching a project specifically for the Mexican IT market, aimed at helping professionals transition from working in tech companies to launching their own IT service businesses — from freelance to running a full company.

Before launching the full course, we’re organizing a test webinar to better understand the local audience's needs and adapt the content accordingly.

We’re inviting founders of service-based tech companies to join as speakers and share their personal stories: how they got started, overcame challenges, and found their first clients. The format is informal and interactive — no selling, just honest insights and live Q&A.

We fully handle marketing and promotion at our expense, and your only task is to share your experience. If there’s mutual interest after the webinar, we’d love to discuss further collaboration on the course program.

If the webinar and project prove successful in Mexico, we plan to expand it across LATAM — so this could be the beginning of something bigger.

Would you be open to a short 15–20 min call to dive into the details?

We are seeking an AWS expert to assist with our cloud infrastructure. The ideal candidate will have extensive experience in deploying, managing, and optimizing AWS services. Your expertise will help us improve security, scalability, and performance of our applications. You will work closely with our development team to ensure seamless integration and deployment of cloud solutions. If you have a proven track record in AWS architecture and implementation, we’d love to hear from you!

I need an experienced web developer or SEO specialist who has successfully submitted sitemaps to Google Search Console before. The task involves:

- Adding my Amazon S3 hosted website URL (in the format https://bucket-name.s3.amazonaws.com) to Google Search Console
- Verifying ownership of the domain using the appropriate method
- Creating and/or uploading a proper sitemap for my S3 hosted site
- Successfully submitting the sitemap to Google Search Console
- Confirming that Google can properly index my S3 bucket content
- Providing proof of successful sitemap submission and indexing

Required skills:
- Experience with Amazon S3 static website hosting
- Proven track record of successful Google Search Console sitemap submissions
- Understanding of sitemap creation and implementation for S3 hosted sites
- SEO fundamentals
- Ability to troubleshoot any verification or indexing issues

This is a straightforward task for someone with the right experience. Please share specific examples of previous sitemap submissions you've completed, especially for S3-hosted websites. The project should be completable within 1-2 hours, and I need verification that the sitemap was successfully submitted and recognized by Google.

We have a process that when a file is uploaded to S3, it calls a Lamda function which sends the file to TextReact. Pulls the data from TextReact and then pushes it into a AWS RDS table. The process has broken somewhere and we need help fixing it.

We are seeking an experienced AWS Cloud Consultant to assist us in managing our Amazon Web Services environment. The ideal candidate will create users, set permissions, and configure backup solutions while managing S3 and Glacier storage. Additionally, we may explore hosting our services on AWS. Your expertise will be crucial in ensuring a secure and efficient cloud infrastructure. If you have a proven track record in AWS management and are able to provide tailored solutions, we would love to hear from you!

We are seeking an experienced AWS Lambda and EventBridge specialist to help us design and implement serverless solutions. The ideal candidate will have a solid understanding of AWS services, particularly in setting up event-driven architectures that leverage Lambda functions. Your role will involve developing, testing, and deploying Lambda functions as well as configuring EventBridge for event-driven communication. If you have a passion for cloud technologies and serverless computing, we would love to hear from you!

We are seeking a detail-oriented and organized Remote Data Entry Clerk / Office Assistant to support our team with data management and administrative tasks. The ideal candidate will be responsible for accurately entering data, maintaining files, and assisting with various office duties to ensure smooth daily operations.

Key Responsibilities:
Enter, update, and maintain data in spreadsheets and databases with high accuracy.
Review and verify data for completeness and consistency.
Assist with organizing digital and physical files.

I need a solutions architect to help migrate our data storage to AWS.

Key Requirements:
- Design and implement a robust migration strategy
- Ensure data integrity and security during the migration
- Minimize downtime and disruptions to business operations
- Provide post-migration support and optimization

Ideal Skills and Experience:
- Proven experience with AWS and data migration
- Strong knowledge of cloud security best practices
- Excellent problem-solving skills
- Relevant certifications (e.g., AWS Certified Solutions Architect)

Skills: .NET, Software Architecture, Amazon Web Services, Amazon S3, Snowflake

I am seeking an experienced AWS expert to provide guidance on setting up my personal instances of SageMaker and Bedrock for training machine learning models. Your insights will be crucial in helping me navigate the configuration, deployment, and optimization of these services. If you have a strong background in AWS services, particularly in machine learning, and can assist me with best practices and troubleshooting, I would love to hear from you. Please include your relevant experience in your proposal.

My goal is to be self sufficient while spinning up and down these personal instances. For this reason looking for someone who is available to view my screen share (Google Meet...) and talk while we spin up this instance together.

Hello!

I'd like to invite you to take a look at the job I've posted. Please submit a proposal if you're available and interested. I am having issues with my website. The backend is just another login and needs to be the access to the backend. I haven’t been able to login to admin or the site. Could you please help fix?

Thank you,

*The Role**

We’re seeking a **Senior Data Engineer** who will own the end-to-end data infrastructure: from data modeling to real-time and batch pipelines, to operationalizing SingleStore as our unified OLTP/OLAP/vector store on AWS. You’ll translate business requirements (user profiles, messages, venues, bookings, etc.) into a robust, modular schema, and build the pipelines feeding our AI agent and analytics dashboards. This can be a full time or a contract based position depending on the candidate’s experience and location. We will consider full time candidates in Dubai with a hybrid work setting. Our preferred remote locations are UAE, Europe and can consider LATAM for the right candidate.

---

### **Key Responsibilities**

- **Data Modeling & Architecture**
- Design and evolve flexible, schema-on-write models for messages, user profiles, venues, interactions, and feature stores.
- Ensure ACID transactions, low-latency reads/writes, and real-time analytics coexist seamlessly in SingleStore.
- **SingleStore Deployment & Integration**
- Stand up and manage SingleStore Helios clusters (or self-managed EC2/EKS deployments) in AWS.
- Configure VPC peering or PrivateLink, IAM roles/Secrets Manager for authentication, and automated backups.
- Implement SingleStore Pipelines to ingest data from Amazon S3, Kafka/Kinesis, and external APIs.
- **AWS Data Ecosystem**
- Build ETL/ELT workflows using AWS Glue, Lambda, or Apache Airflow on Amazon MWAA.
- Leverage Kinesis Data Streams or Apache Kafka (MSK) for real-time event ingestion.
- Orchestrate infrastructure as code with Terraform or CloudFormation.
- **Vector & Analytics Workloads**
- Integrate SingleStore-V module or external vector stores (e.g., Pinecone) for embedding search.
- Co-query embeddings with relational metadata to power recommendation pipelines.
- Design materialized views, OLAP tables, and dashboards for BI (QuickSight, Tableau).
- **Performance, Monitoring & Cost Optimization**
- Implement auto-scaling strategies and capacity planning for compute/storage.
- Monitor performance with CloudWatch, Prometheus/Grafana, and SingleStore tooling.
- Optimize storage, query patterns, and pipeline costs.
- **Collaboration & Best Practices**
- Work closely with backend engineers, ML engineers, and product teams to define data contracts.
- Establish data governance, schema versioning, and CI/CD for database changes (dbt, Liquibase).
- Mentor junior engineers and codify best practices in SQL, Python, and AWS architecture.

---

### **Must-Have Qualifications**

- **5+ years** of data engineering experience, with **2+ years** working hands-on with **SingleStore** (Helios or self-managed).
- Deep expertise in **AWS** data services: S3, Glue, Lambda, Kinesis/MSK, IAM, VPC, Secrets Manager, CloudFormation/Terraform.
- Proficient in **SQL** (advanced queries, window functions, indexing) and **Python** (PySpark, Pandas).
- Experience building **real-time** data pipelines and **batch** ETL/ELT workflows.
- Familiarity with **vector search** concepts and integrations (embeddings, ANN indexes).
- Strong understanding of **distributed systems**, transactional, and scalable patterns.

---

### **Preferred Skills**

- Experience with **Airflow**, **dbt**, or similar orchestration and transformation tools.
- Background in **machine-learning feature stores** or performance-critical analytics.
- Knowledge of **DevOps/SRE** practices: CI/CD for infrastructure, GitOps, containerized deployments (Docker, Kubernetes).
- Prior work on messaging/chatbot platforms, recommendation engines, or hospitality-focused data systems.

Software Engineer - Winnow Creative Optimization Platform

About Winnow
Businesses struggle to efficiently create, test, and optimize advertising creative at scale, often facing slow and cumbersome processes. Winnow is a creative optimization platform revolutionizing this by transforming it into a fast, intelligent process. We help businesses tell their stories through personalized creative that resonates with their target audiences. Our initial focus is healthcare advertising, with plans for expansion. We are backed by a strategic partner providing funding and real-world advertising data for platform development.

The Opportunity
We're seeking a technically versatile Software Engineer to architect and build our creative optimization platform from the ground up. This is a chance to join a startup at the earliest stage and shape both the technical architecture and product direction. While we are based in New York and prefer candidates in the New York area, we are open to remote work. You'll have substantial autonomy working directly with the founders to bring the vision to life.

Core Platform Functionality
Winnow is creating a system that:
Receives audience/demographic data (via JSON)
Queries a database of creative assets based on that data
Dynamically combines these assets (images, text, graphic elements) into multiple ad variations
Generates these variations across different sizes and formats
Tracks performance metrics to identify which variations perform best
Provides insights on why certain creative elements resonate with specific audiences

Responsibilities
Design and implement the core backend architecture for the Winnow platform
Build robust database structures for organizing and querying creative assets
Develop the asset combination engine that dynamically generates ad variations
Implement image/video processing capabilities using FFmpeg or similar tools
Create APIs that will integrate with advertising platforms and analytics tools
Design the system with scalability in mind to handle increasing volumes of assets and requests
Work with the founding team to define product roadmap and technical priorities
Make pragmatic technology choices that balance immediate needs with long-term vision
Help set up and manage the metadata tagging system for creative assets

Required Technical Skills
Strong backend development experience (Python or Node.js preferred)
Database design and implementation (PostgreSQL experience highly desirable, specifically with SQL databases)
Experience with cloud platforms (AWS preferred, particularly S3 buckets, EC2, and RDS)
Knowledge of RESTful API design and implementation
Understanding of image/video processing (experience with FFmpeg would be ideal)
Familiarity with containerization (Docker) and deployment automation

Highly Desirable Skills
Experience with AI/ML integration (doesn't require ML expertise, but ability to work with AI services)
Knowledge or interest in Model Context Protocol (MCP) or similar AI interaction frameworks
Experience building systems that process and combine visual assets
Understanding of advertising technology and creative workflows
Previous experience designing systems that handle metadata-rich assets
Background in building multi-client/multi-tenant SaaS platforms

Future Technology Direction
While our initial MVP will focus on core asset management, combination, and A/B testing capabilities, our future vision includes:
Implementing MCP servers to enable AI-driven creative decision making
Building a conversational interface for natural language interaction with the platform
Creating advanced analytics to understand why specific creative elements perform well
Developing machine learning capabilities to predict creative performance

Collaboration
You'll work directly with our founders who bring strong creative and business backgrounds but rely on your technical expertise to make the right architecture decisions. We're looking for someone who can translate business needs into technical solutions and communicate complex concepts to non-technical stakeholders.
Location & Compensation
Remote position with flexible working hours (New York preferred)

Competitive rate
Initial contract with opportunity for full-time position as the company grows

How to Apply
Please send your resume, relevant portfolio/GitHub links, and a brief note explaining why you're interested.

We look forward to hearing you!

Mid level automation with Puthon and AWS services

I am a software product manager for a cyber security application that integrates with Databricks. I am looking for somebody with their own Databricks account who can beta test our new features, which allow you to assign masking policy to columns in your tables. This job includes the time it takes to set up your Databricks account and then an hour on a zoom call with me as I guide you through the beta test.

Your Databricks account must have the following:

1. Unity Catalog enabled
2. Managed storage at the metastore level
3. A table of data stored in an S3 bucket within managed storage
4. Access to an all-purpose compute cluster

AngelWatch Corporation is a national child safety accreditation program for schools and daycares, partnered with the American Red Cross, American Heart Association, and backed by the Department of Homeland Security. We are building a high-performance outbound email system and need a proven expert to configure and launch our infrastructure using Amazon SES and Mailcoach Cloud.

This is for an experienced email infrastructure engineer who can deliver a clean, powerful, and user-friendly system that I (the client) will be using directly without needing ongoing technical help.

Project Scope (Fixed Price: Up to $1,000)
This is a 1–2 day setup. No experiments. No workarounds. The system must be production-ready, secure, and easy to operate.

You will be responsible for:

Amazon SES Setup
Move SES account into production mode

Request and secure sending quota for 500,000 to 1,000,000+ emails/month

Set up dedicated or managed dedicated IP

Configure Amazon SNS for bounce and complaint handling

Domain Authentication
Set up SPF, DKIM, and DMARC using Route 53 (or advise on best DNS setup)

Verify domain ownership for authenticated sending

Mailcoach Cloud Integration
Connect Mailcoach Cloud to SES (SMTP or API)

Validate that bounce handling, open/click tracking, and list imports function correctly

Launch and confirm a working test campaign

Amazon S3 for File Hosting
Create and configure S3 bucket for hosting PDF downloads or attachments

Provide structure to easily insert download links into campaigns

Analytics & Usability Features
Ensure system provides full campaign analytics, including:

Open rate

Click rate

Bounce rate

Who opened and who didn’t

Set up CSV list upload with built-in:

Duplicate email checking

Suppression list management

List hygiene recommendations

Confirm drag-and-drop or drop-and-play email design is fully functional

Make sure the entire interface is simple and intuitive for a non-developer to run solo

Requirements
Proven experience configuring Amazon SES at 500,000 to 1,000,000+ emails/month scale

Deep understanding of SPF, DKIM, and DMARC setup via Route 53 or similar

Experience with Mailcoach Cloud or Laravel-based platforms

Familiarity with SNS for bounce/complaint feedback loops

Can complete setup in 1–2 business days without hand-holding

Must prioritize usability — this system will be managed directly by the client

Preferred:

Familiarity with email warm-up tools (Mailwarm, Warmup Inbox)

Experience with list-cleaning tools (NeverBounce, ZeroBounce)

Optional: ability to advise on long-term deliverability strategy

To Apply
Please include the following:

A brief summary of your Amazon SES and Mailcoach (or Laravel email platform) experience

Past examples of similar setups (links, screenshots, or client results)

Your flat-rate quote ($750–$1,000)

Your availability and estimated time to complete

This is a precision job. We need someone who can execute quickly, flawlessly, and leave behind a system that works perfectly — and is easy for me to operate without tech support.

Overview:
We are seeking an experienced Backend + DevOps freelancer specializing in AWS infrastructure to diagnose and resolve a critical memory or stability issue causing frequent crashes in our Python-based application.

Specific Problem:
Our Python application asynchronously executes multiple (7+) functions simultaneously on AWS infrastructure, currently using EC2 instances with up to 64GB memory. Despite ample resources, the system consistently crashes, likely due to memory leaks or inadequate resource management. We are exploring AWS Lambda as an alternative.

Key Responsibilities:
• Diagnose the root cause of crashes (memory leaks, resource allocation issues, concurrency problems).

• Implement robust monitoring and logging using AWS CloudWatch or suitable monitoring tools.

• Optimize existing code and configurations to ensure efficient resource usage and application stability - both on local dev environments and on AWS infrastructure.

• Recommend and execute optimal AWS infrastructure solutions (Lambda, ECS, Fargate) for stable and scalable asynchronous execution.

Requirements:
• Proven experience in Backend and DevOps roles, particularly with Python and AWS environments.

• Deep understanding of profiling, memory management, and troubleshooting memory leaks in Python applications.

• Knowledge of Python and the worlds of AI in order to dive into the backend part of the code in the event of a memory leak and resolve the problem

• Hands-on experience configuring and deploying AWS Lambda, EC2, ECS, and similar AWS infrastructure.
• Proficient with monitoring tools (CloudWatch, Datadog, or similar).
Ability to rapidly diagnose and resolve critical infrastructure issues under pressure.

Timeframe:
Immediate availability required; the issue resolution is highly urgent.

Location:
Remote.

Contract Type:
Freelance (short-term, focused engagement).

How to Apply:
Please send your CV and a brief summary of similar issues you’ve resolved recently.
Specify how you stand vs. each of the 5 requirements.

We are seeking an experienced AWS specialist to assist in the setup of Clinical Trial Management Systems (CTMS) and the AWS Grant application process. The ideal candidate will have a strong background in AWS services, particularly in the context of clinical trials. Your expertise will help us establish a robust infrastructure to support our clinical research efforts. If you have a proven track record in this field and are passionate about improving clinical trial processes, we want to hear from you!

Hello!

We are an Australian company that requires a developer and a systems administrator to manage and troubleshoot two types of web applications.

Both applications are currently built and active by a developer who has just recently closed business. We are in need of a new developer and a systems administrator to take over and have the two services running.

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Application One involves:
- Microsoft SQL Server to handle the database. This is key for day to day operations, and to handle issues. Note that this is a paid version (2017 Standard), in case we need to migrate data.
- The backend code is written in node.js and the frontend is Angular. Only needed if new features are needed or to handle upgrades, or if we need cosmetic changes to the dashboard.
- There is a single server hosted in Amazon LightSail which runs Windows hosting everything needed to keep the site online.

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Application Two involves:
- Database is MySQL.
- Frontend is Angular, and again backend is node.js
- Server is a single Linux instance hosted in Amazon LightSail.

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There are also few things around backup and security which needs an average to good level of system administration understanding.

Ideally we require a good developer who knows Microsoft SQL and node.js both, and then we need another IT guy who knows system administration.

Thank you.