Contract W2
API Developer (Python, .NET, AWS)
Atlanta, GA · Depends on experience
Applying takes about two minutes. No account, no portal, and a human reads it.
About this role
We are seeking a full-stack backend API Developer for an onsite contract (W-2) engagement in Atlanta, GA. You will design, build, and support RESTful services and integrations across a mixed Python and .NET estate running on AWS, working closely with product, front-end, and platform teams.
Responsibilities:
- Design and develop secure, well-documented REST APIs and microservices in Python and C#/.NET
- Build and consume integrations between internal services and third-party platforms
- Deploy and operate services on AWS using Lambda, API Gateway, ECS/EKS, S3, SQS/SNS, and RDS/DynamoDB
- Write unit, integration, and contract tests; maintain high code quality through reviews
- Implement authentication and authorisation (OAuth2, JWT), rate limiting, and API versioning
- Troubleshoot production issues, and improve performance, logging, and observability
- Contribute to CI/CD pipelines and participate in Agile ceremonies
Work mode: This is a 100% onsite role in Atlanta, GA — no remote or hybrid option.
Employment: Contract on our W-2 only. Candidates must hold independent work authorisation (no third-party employer or sponsorship arrangement). Rate depends on experience.
Responsibilities:
- Design and develop secure, well-documented REST APIs and microservices in Python and C#/.NET
- Build and consume integrations between internal services and third-party platforms
- Deploy and operate services on AWS using Lambda, API Gateway, ECS/EKS, S3, SQS/SNS, and RDS/DynamoDB
- Write unit, integration, and contract tests; maintain high code quality through reviews
- Implement authentication and authorisation (OAuth2, JWT), rate limiting, and API versioning
- Troubleshoot production issues, and improve performance, logging, and observability
- Contribute to CI/CD pipelines and participate in Agile ceremonies
Work mode: This is a 100% onsite role in Atlanta, GA — no remote or hybrid option.
Employment: Contract on our W-2 only. Candidates must hold independent work authorisation (no third-party employer or sponsorship arrangement). Rate depends on experience.
Requirements
- Must have: Python
- Must have: .NET (C#, ASP.NET Core / .NET Core)
- Must have: AWS
- Must have: REST API design and development
- Hands-on experience with Python web frameworks (FastAPI, Flask, or Django REST Framework)
- AWS services: Lambda, API Gateway, ECS/EKS, S3, SQS/SNS, CloudWatch, RDS/DynamoDB
- API security: OAuth2, JWT, API keys, throttling, and versioning strategies
- SQL and NoSQL databases; performance tuning of queries and endpoints
- OpenAPI/Swagger documentation and contract testing
- Docker, Git, and CI/CD pipelines
- Automated testing (pytest, xUnit/NUnit) and Agile/Scrum delivery
- Good to have: Azure or GCP exposure, event-driven and messaging architectures, GraphQL
- Bachelor's degree in Computer Science, Engineering, or a related field
- Work mode: onsite in Atlanta, GA (mandatory)
- Employment: our W-2 only — independent work authorisation required, no third-party or sponsorship
How we handle your application. A recruiter reads it — not a keyword filter. We will not submit you to this client, or any other, without your explicit approval for that specific role. Josh Pros is an equal opportunity employer and considers all qualified applicants without regard to citizenship or immigration status.
Before you apply anywhere — including here
Ask every firm these questions. We have already answered them.
Do you sponsor work authorization?
Yes, for consultants we employ on W-2 — H-1B transfers, extensions, amendments, and employment-based green cards.
Read moreWhat happens on the bench?
You stay on payroll. For H-1B employees, paying the required wage during employer-caused downtime is a legal requirement, not a perk.
Read moreWill you tell me the client and the layers?
Yes, before you interview. If there is a prime vendor or MSP in the chain, you will know.
Read more