Salary: £130,000 - 137,800 per year Requirements: Experience with Android development using Kotlin and Jetpack Compose Experience with backend development in Rust, Python, or Go Experience with Git and modern development workflows Experience with Docker and CI/CD pipelines Experience with API design, including REST and OpenAPI Experience working in secure or controlled environments Ability to obtain UK Security Clearance (SC Level) prior to appointment Nice to have: experience with AWS or Azure Nice to have: experience with Kubernetes Nice to have: Agile delivery experience Nice to have: awareness of secure coding practices Responsibilities: Build Android applications using Kotlin and Jetpack Compose Design and ship backend services in Rust, Python, or Go Work with Docker, CI/CD pipelines, and cloud platforms such as AWS or Azure Contribute across mobile, backend, and cloud-native systems in a secure, high-assurance environment Participate in rapid iteration, including proof-of-concepts where requirements evolve quickly Collaborate closely through code reviews and Git-based workflows Technologies: API AWS Android Azure Backend CI/CD Cloud Docker Git Kotlin Kubernetes Mobile OpenAPI Python REST Rust Security DevOps More: We are hiring for a hands-on Software Engineer role focused on Android, backend, and cloud engineering within our defence team. This is a contract or permanent opportunity based in Cheltenham, working 5 days a week with 1 day per week in Herefordshire for client visits. We value clean engineering, strong collaboration, and real-world problem solving where the technology genuinely matters. last updated 23 week of 2026