API Developer (K10192)

About the Position

We are seeking an expert API Developer (K10192) to implement a critical subset of an existing API with production-quality code and documentation.

Responsibilities

• Implement the critical parts of the API to show that a compatible replacement is achievable.
• Analyze the existing API and its documentation, and agree on the subset to cover.
• Analyze the ODS database and map its metadata to what the existing API exposes, identifying any gaps.
• Propose and implement a security approach (authentication, authorization, secure handling of submitted data), highlighting where it differs from the current API.
• Implement the metadata endpoints on top of the ODS database.
• Implement the submission endpoints, with validation of submitted data and meaningful error responses.
• Hand over submitted data to the ODS loading code (or store it in the form that code expects).
• Write automated tests and concise technical documentation.
• Deploy and demonstrate the solution on Ubuntu Linux.
• Report on limitations, open questions, and recommended next steps.

Requirements

• Languages

  • French: Passive knowledge
  • English: Active knowledge
  • Dutch: Passive knowledge

• Skills

  • API Design: Expert
  • Pytest: Expert
  • Python: Expert
  • SQLAlchemy: Expert
  • PostgreSQL: Expert
  • API development (FastAPI,...): Expert
  • API Security a.d.h.v. OAuth en WS-Security: Expert
  • REST: Expert
  • API: Expert
  • API Developer experience (SOAP en REST): Expert

Nice to Have

• Polars in combination with SQLAlchemy
• uv for package management
• Experience with API compatibility or migration projects
• Experience handling sensitive data (e.g., health data) and GDPR requirements
• Linux deployment experience

Soft Skills

• Autonomy and ability to work from incomplete documentation
• Pragmatism: focusing on the critical parts first while keeping quality high on what is delivered
• Clear communication of findings and limitations

We Offer

• Competitive salary
• Opportunity to work in a dynamic and innovative environment
• Professional development opportunities

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