Need a reliable Python backend or help improving an existing API?

I build production-ready backend systems with FastAPI, PostgreSQL, asynchronous processing, and third-party integrations. I can develop a new service or safely extend an existing codebase.

What I can deliver:

• REST API design and implementation • Database models, migrations, and query optimization • Background workers and asynchronous workflows • Third-party API and webhook integrations • Automated tests and technical documentation • Docker configuration and deployment support

My process:

Clarify the requirements and expected outcome.

Review the existing architecture or propose a new technical approach.

Implement the solution in small, verifiable stages.

Test the functionality and provide documentation for handoff.

To get started, I need a short product description, required endpoints or integrations, and access to the existing documentation or repository when applicable.