Backend Engineer: Python, FastAPI & Multi-Tenant

Oscar Technology is seeking a Backend Engineer in London to design and implement multi-tenant data/workflow services as part of a high-growth platform. You’ll integrate Python AI services with a Java/Spring core and own the API layer in a regulated enterprise context.

You’ll report to the UK core team, work primarily in-office at Kings Cross (3 days per week), and collaborate across a dispersed delivery organisation to ship reliable services with strong auditability.