1 of 1 Contract Senior Python Developer Jobs in Oxfordshire

Senior Backend Engineer - Python Outside IR35 Hybrid - Oxford or London | Contract Our client, a UK-based deep tech start-up, is seeking an experienced Senior Backend Engineer (Python & Django or Flask) to own and operate mission-critical backend services powering generative AI products. You'll architect, build, and run scalable APIs and data services end-to … shape the backend systems at the core of cutting-edge AI, with a strong focus on performance, reliability, and security. Key Responsibilities Architect and evolve scalable backend services in Python (FastAPI/Django/Flask). Design and operate RESTful APIs aligned with OpenAPI/Swagger. Implement authentication and authorization (OAuth2/OIDC, permissions, session management). Optimise relational … hardening, monitoring, and compliance readiness. Own backup, disaster recovery, incident response, and runbook creation. Mentor engineers and communicate technical trade-offs to stakeholders. Requirements 5+ years' backend development with Python (Django or Flask). Proven experience designing, scaling, and operating production REST APIs. Deep expertise in relational database design, performance tuning, and migrations (PostgreSQL). Strong knowledge of Docker More ❯