Python Developer

We are delivering a large-scale, multi-year AI-enabled digital services programme aimed at transforming citizen-facing experiences across the UK. The programme focuses on building secure, scalable, and AI-powered services, with an emphasis on trust, resilience, and common digital standards. Candidates will join a cross-functional team shaping next-generation public services through cutting-edge Python engineering and AI. Overview The Python Developer will design and implement high-performance, secure services in the Business Layer, enabling personalised, AI-driven citizen services. Responsibilities Develop and maintain APIs and services using Python, FastAPI/Django/Flask, and modern cloud tooling. Build secure and performant integrations between the Business Layer and other systems. Design and optimise data pipelines and transformation logic for large-scale services. Contribute to highly available, fault-tolerant workloads supporting millions of daily interactions. Collaborate within agile teams alongside product owners, architects, and engineers. Essential Skills Proven Python development experience in production. Strong knowledge of RESTful APIs and asynchronous frameworks (FastAPI, AsyncIO, etc.). Experience with cloud environments (AWS – Lambda, API Gateway, Serverless). Solid understanding of SQL/NoSQL databases and caching technologies (Redis, DynamoDB, PostgreSQL). Active UK Security Clearance. Desirable Experience building or securing mission-critical, public-facing systems. Background in AI/ML integrations or data transformation at scale. Knowledge of containerisation and orchestration (Docker, Kubernetes). Detailed specification available.