Join a specialist technology business delivering secure, high-performance software into some of the UK’s most critical environments. This role plays a key part in building robust Android applications that operate where reliability and security truly matter.
Role Overview
* Location: Hybrid – Cheltenham - Once per month onsite
* Industry: Secure Software / Defence Technology
What You’ll Be Doing
* Designing and developing high-quality Android applications using Kotlin for secure, real-world deployments
* Building scalable, maintainable code using modern frameworks and architectural patterns
* Integrating mobile apps with backend services (APIs, messaging systems, secure endpoints)
* Enhancing performance across battery, memory, and responsiveness for demanding environments
* Embedding security best practices across the full development lifecycle
* Contributing to architecture decisions and evolving mobile design standards
* Collaborating with cross-functional teams across engineering, security, and cloud
* Supporting code reviews and driving consistent engineering quality
* Producing clear technical documentation and supporting delivery in Agile teams
Main Skills Needed
* Strong commercial Android development experience, primarily with Kotlin
* Solid grasp of modern Android architecture (e.g. MVVM, MVI, Clean Architecture)
* Experience integrating APIs and handling data via tools like Retrofit or similar
* Understanding of secure mobile development practices (encryption, authentication, secure storage)
* Familiarity with testing approaches across unit, UI, and integration levels
* Experience with build tools and development environments such as Gradle and Android Studio
* Knowledge of CI/CD pipelines, version control (Git), and Agile delivery
* Eligibility to obtain SC clearance
What’s in It for You
* Work on meaningful projects within highly secure, mission-critical environments
* Strong salary package with long-term career stability
* Hybrid working model with flexibility built in
* Opportunity to influence architecture and technical direction
* Exposure to cutting-edge secure mobile and cloud technologies
* Collaborative, highly skilled engineering environment
* Ongoing learning and development in a specialist domain
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
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