Salary: £85,000 - 85,000 per year Requirements: Strong commercial experience as an Android Software Engineer, Android Developer, or Mobile Developer Strong commercial experience developing Android applications in Kotlin Good understanding of Android architecture patterns including MVVM, MVI, and/or Clean Architecture Experience integrating RESTful APIs Strong knowledge of Android build tooling including Gradle Experience with modern Android tooling and libraries Experience with automated testing such as JUnit, Mockito, and UI testing Familiarity with Git, CI/CD pipelines, and Agile software delivery Strong communication and collaboration skills British citizenship and ability to obtain MOD SC clearance Existing SC clearance (desired) Experience working in defence, secure technology, or other highly regulated environments (desired) Knowledge of Mobile Device Management (MDM) platforms such as Microsoft Intune or VMware Workspace ONE (desired) Familiarity with Android Enterprise enrolment modes (desired) Exposure to secure mobile applications or operationally focused mobile technology (desired) Understanding of secure mobile / zero-trust principles (desired) Experience with gRPC and Protocol Buffers (desired) Knowledge of secure mobile standards or guidance (desired) Exposure to Kotlin Multiplatform Mobile (KMM) (desired) Responsibilities: Designing, developing, testing, and maintaining high-quality Android applications Building secure, robust mobile applications in Kotlin Applying modern Android architecture patterns such as MVVM, MVI, and Clean Architecture Writing clean, maintainable code using modern Android practices including coroutines, Flow, and structured concurrency Integrating Android applications with REST APIs, backend services, and secure communications layers Supporting performance optimisation, battery efficiency, and memory usage improvements Participating in code reviews and helping drive engineering quality across the mobile estate Working closely with architects, backend engineers, cloud engineers, DevSecOps, and security specialists Contributing to secure mobile design decisions in line with modern security principles Supporting Agile delivery, technical discussions, and ongoing product improvement Technologies: Android Backend CI/CD Cloud DevSecOps Flow Git Gradle JUnit Kotlin Microsoft Intune Mobile MVVM REST Security VMware gRPC UX UI Design More: We are a growing UK technology business focused on delivering secure mobile solutions to the national defence sector. This position offers a competitive salary ranging from £70,000 to £85,000, along with a bonus, hybrid working options, pension, private healthcare, an electric car scheme, and opportunities for training and development. We foster a friendly, knowledgeable culture prioritizing peer-sharing and career progression. Join us in creating high-performance mobile applications that have a real-world impact. last updated 14 week of 2026