Senior Backend Developer - Python
Oxfordshire, South East, United Kingdom
IO Associates
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-end, collaborating closely with AI engineers to deliver new features … from concept to production. This role offers the opportunity 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 … authorization (OAuth2/OIDC, permissions, session management). Optimise relational database design and performance (PostgreSQL). Introduce caching, rate limiting, and queuing to meet performance goals. Integrate with AI pipelines and model-serving endpoints (async inference, streaming). Containerise services with Docker; maintain IaC with Terraform/CloudFormation. Operate services on AWS with CI/CD pipelines (GitHub More ❯
Employment Type: Contract
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