Python Developers

Senior Python Django Developer – Contract Location: Full Remote (Occasional Travel) Daily Rate: Up to £750 p/d Inside IR35 via Umbrella Engagement (Negotiable) Please Note: This role will need to operate through an Umbrella company and all employer, employee tax and NI will be deducted from the rate Our client is a forward-thinking FTSE100 retailer, building cutting-edge, enterprise-grade algorithmic platforms for global institutions. Our mission is to harness the power of AI to transform data into actionable insights, driving smarter decisions in capital markets, asset management, and fintech innovation. As we expand our core engineering team, we are seeking an exceptional Senior Python Django Developer to help architect, build, and scale our high-performance systems. As a Senior Developer, you will be working on a sophisticated AI-powered algorithm platform, responsible for the core services, APIs, and distributed processing backbone. This role requires a deep understanding of Python internals, Django architecture, and scalable API design, with a particular emphasis on multithreading, concurrency, and performance tuning. Lead the design and development of backend services using Python and the Django Rest Framework (DRF) Optimize data processing and I/O-heavy operations, with advanced understanding of Global Interpreter Lock (GIL) and Threading Implement clean, type-safe code using Python type hinting, PEP-compliant standards, and robust unit testing Build performant, scalable APIs to support financial modeling and algorithmic decision-making tools Collaborate closely with AI/ML engineers, UI/UX Engineers, Data Scientists, and DevOps to deploy and monitor production-ready services Mentor junior developers and conduct code reviews to maintain high code quality and engineering standards Proven experience in Python backend development, with deep expertise in Django and Django Rest Framework across multiple organisations or environments Advanced knowledge of Python concurrency, including the Global Interpreter Lock (GIL), multithreading, multiprocessing, and asyncio Experience with unit testing, integration testing, and test automation frameworks Solid understanding of PostgreSQL, Redis, and message queues (e.g., Familiarity with data pipelines and integration with AI/ML models Contributions to open-source projects or Python/Django communities