Senior Python Developer

Senior Python Developer | London | Hybrid | £500 - £540 per day We're working with a leading global workforce solutions provider as they support a mission-critical project for one of the UK's most prestigious financial institutions on this exciting opportunity. This is a high-impact role building a cutting-edge Azure Databricks platform used for national economic forecasting and monetary analysis. You will be at the heart of Python-driven innovation, reverse-engineering complex codebases to deliver high-performance APIs and advanced data visualizations that influence real-world economic policy. The Role • Lead the full-stack development of applications and APIs interacting with a high-scale Azure Databricks environment. • Architect and maintain robust back-end services using Python, Flask, and Django for critical data processing and monetary modelling. • Reverse-engineer existing codebases to identify performance bottlenecks, implement new features, and ensure system stability. • Collaborate with UI/UX designers to build seamless, data-rich front-end interfaces using React, Angular, or Vue.js. • Drive the development of MVPs and integrate visualization tools to connect complex systems across the banking ecosystem. What You'll Need • Extensive Senior-level experience in Python development with expert knowledge of Pandas, NumPy, and automation libraries. • Proven track record working within an Azure Databricks or Spark environment for large-scale data engineering and API integration. • Strong full-stack capabilities with modern JavaScript frameworks (React/Angular/Vue) and SQL/NoSQL databases. • Ability to perform complex reverse-engineering on legacy code to modernize and scale banking applications. • Deep understanding of software engineering best practices, including TDD (PyTest/Unit testing) and CI/CD pipelines. What's On Offer • Competitive daily rate of £500 - £540 (Inside IR35 - Umbrella). • Long-term 14-month contract providing excellent project stability and depth. • Hybrid working model (3 days in Central London) offering a blend of collaboration and flexibility. • The chance to work on high-profile public sector innovation using the latest cloud data stack. Apply via Haystack today!