Senior Backend Engineer (Python / FastAPI)
nahc.io, Taipei City, Taiwan
About the job
About the Opportunity
This role is the single point of accountability for a medical imaging backend: its correctness, its behaviour in production, and the written record behind each technical decision. You will own the clinical data, the workflow around it, and the accuracy of the numbers that reach a report. The work includes the unglamorous parts, such as chasing failures that only appear under load and keeping a retiring service running until it is fully replaced. Machine learning models are built by a separate data science team, so your focus is the backend that serves them.
What You'll Do
- Own the Python/FastAPI backend end to end, including HTTP APIs, background workers, and production behaviour.
- Own the PostgreSQL data model and its evolution, covering schema design, migrations, concurrency control, and query performance.
- Build asynchronous, event-driven pipelines for medical image processing, from ingestion and de-identification to inference submission and result handling, with reliable retry and timeout behaviour.
- Integrate with an internal platform for authentication, GPU inference, and usage metering, keep the product resilient when it is unavailable, and enforce multi-tenant data isolation and patient data privacy.