Android Engineer - Mobile Applications

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 & 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
• Experience debugging and optimizing mobile application performance
• Ability to work effectively within agile engineering teams

Nice to Have

• Jetpack Compose experience
• Dependency Injection frameworks (eg, Dagger/Hilt)
• Experience supporting Legacy Android codebases
• Exposure to open-source projects or contributions
• Experience working within globally distributed teams