Senior Developer - Platform Engineering Contract | Inside IR35 | £395 per day 6 months+ | UK Wide with travel to Leeds once per fortnight We are recruiting for a Senior Developer/Platform Engineer to join a team supporting a nationally critical healthcare integration and messaging platform. This is a high-impact contract role working on systems that require strong resilience, security, and engineering discipline. This role would suit someone with a strong Python development background who is equally comfortable working across cloud infrastructure, CI/CD, observability, and secure software delivery. The opportunity You will help maintain and improve a complex cloud-based platform that supports secure, high-availability data exchange across a large-scale environment. The work will involve improving code quality, supporting deployment standards, strengthening platform engineering practices, and contributing to the reliability and security of live services. What we''re looking for Strong experience as a Senior Python Developer Good exposure to cloud-native development, ideally AWS Experience with Terraform or other Infrastructure as Code tooling Experience building and maintaining CI/CD pipelines, ideally with GitHub Actions Knowledge of observability and monitoring tooling Strong understanding of the Secure Software Development Life Cycle Experience developing secure, reliable software in complex environments Ability to support incident investigation and problem resolution Expe