API Developer - Golang/Python

API Developer (Golang/Python) - Financial Services Inside IR35 Sheffield (1-2 days/month onsite) A leading financial services organisation is seeking an experienced API Developer to join their team on a contract basis. This is a great opportunity to work on modern, scalable systems within a highly regulated and fast-paced environment. This role would suit a developer who enjoys working on Back End systems but is comfortable contributing to full-stack solutions when needed. If you''re looking to make an impact within a major financial organisation, this could be a strong fit. Role Overview You''ll be responsible for designing, building, and integrating high-performance APIs, with a strong focus on Golang (preferred) or Python. You''ll also collaborate with Front End teams, contributing to web-facing components using technologies such as React or Node.js. Key Responsibilities Design, develop, and maintain robust APIs Ensure seamless integration across internal and external systems Collaborate with cross-functional teams including Front End developers Contribute to architecture decisions and best practices Support performance optimisation and scalability initiatives Required Skills andamp; Experience Strong experience with Golang (preferred) or Python Proven track record in API development (design, build, integration) Understanding of modern software engineering practices Nice to Have Experience with React or Node.js Working knowledge of Python (if not primary language) ..... full job details .....