We're looking for a senior API developer to build the critical parts of a compatible replacement for an existing API. You'll expose database metadata and pass validated submissions to existing loading code.
What you'll do
- Analyse the existing API documentation to define the implementation scope.
- Define API security, highlighting differences from the existing model.
- Implement metadata and validated submission endpoints with meaningful errors.
- Deliver production-quality code with automated tests and technical documentation.
- Deploy and demonstrate the solution on Linux.
- Document covered scope, limitations and steps needed for production.
What you bring
- 3.12+ and .
- and , including mapping existing schemas.
- and design and development.
- API security with , WS-Security, authentication, authorisation and TLS.
- with pytest.
- Autonomy with incomplete documentation, pragmatic prioritisation and clear communication.
- (B1).
- (B2).
- (B1).
Nice to have
- Polars with .
- uv package management.
- API compatibility or migration projects.
- Sensitive data handling and requirements.
- deployment experience.
What's next?
The people who do well here are the ones who saw themselves in this description. Not because they match every line, but because the mission felt right for them.
We are actively hiring for this position. Applications are reviewed by our team, and matching profiles receive a call to discuss the role in detail.
It takes under a minute to apply. Your email, your CV. That is all we need to start the conversation.