3 of 3 Permanent FastAPI Jobs in Buckinghamshire

Build Across the Stack Develop high-performance, user-facing features using React, Next.js, and TypeScript Design and build backend services and APIs using Python (FastAPI) Design Robust Systems Architect clean, scalable REST APIs Design and optimise PostgreSQL/Supabase schemas for performance and growth Ship to the Cloud Deploy, maintain ...

arrangements in place. Technical Requirements Backend & APIs Strong experience designing REST and/or GraphQL APIs for production SaaS platforms Advanced proficiency in Python (FastAPI) and/or Node.js (TypeScript/NestJS) Deep understanding of multi-tenant system design, permissions, and role-based workflows Event-driven architectures using webhooks, queues ...

understand the trade-offs between speed, cost, and model performance. Design, implement, and productionise multi-agent LLM systems that reason, plan, and coordinate. Develop FastAPI-based microservices optimised for low latency and high reliability. Engineer and evaluate RAG pipelines: hybrid retrieval, re-ranking, grounding, and context validation. Integrate real-time … model-faithfulness metrics. What we're looking for Proven ability to build and ship agentic or multi-agent frameworks into production. Expert Python, FastAPI, and asyncio developer. Practical experience with LangChain, Autogen, or custom orchestration layers. Startup mindset: ownership, speed, and pragmatism over perfection. Bonus points Experience working with voice ...