Location: London, UK (3 days onsite) Contract Duration: Initial contract until December 2026 Rate: Up to £500/day Inside IR35 Overview We are seeking an experienced Android Engineer to join a high-performing mobile engineering team delivering enterprise-scale applications used by millions of users globally. This role focuses on building modern Android solutions, improving performance, and contributing to scalable mobile architecture within a collaborative agile environment. Key Responsibilities Design, develop, and maintain Android applications using Kotlin and modern Android frameworks Build high-quality, scalable mobile features following clean architecture principles Collaborate with product, design, QA, and Back End engineering teams Integrate mobile applications with RESTful APIs and Back End services Implement asynchronous programming patterns and optimize application performance Contribute to CI/CD pipelines and engineering best practices Participate in code reviews and technical solution design Troubleshoot, debug, and enhance existing applications Required Skills andamp; Experience Strong commercial experience developing Android applications using Kotlin Good understanding of Android architecture patterns and Jetpack libraries Experience integrating REST APIs Knowledge of asynchronous programming (Coroutines, Flows, RxJava) Experience with CI/CD tools such as Gradle, GitHub Actions, or CircleCI Strong testing experience using frameworks such as Espresso and JUnit