Senior Software Engineer - National Security (Data Systems)About the roleYou''ll design and deliver scalable data processing solutions for customers operating in highly sensitive, demanding environments. This is hands-on technical work: you''ll architect cloud-native systems, lead data pipeline development, and work directly with technical stakeholders to solve complex, real-world problems.Essential requirementsBritish national only, active SC, and eligible for higher levelBased in or willing to relocate to Gloucester5+ years'' professional experience with cloud data engineering (AWS focus)Hands-on experience: Python or Java, Hadoop/distributed systems, CI/CD pipelinesProven ability to design scalable architectures and mentor technical teamsWhat we''re looking forYou think in systems, communicate clearly to both technical and non-technical audiences, and care about getting details right. You''ve worked on platforms that matter and can thrive in fast-moving, security-conscious environments.We offerCompetitive salary, 30 days'' holiday, flexible working, and the chance to work on problems that genuinely protect UK interests.To applySend your CV with a brief note on your relevant experience.Reasonable Adjustments:Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to delive