Kotlin / Android Developer
Job Description
About the Role
We are hiring an experienced Kotlin / Android Developer to build and maintain production applications using Jetpack Compose, Kotlin Coroutines, Room Database. This role requires strong technical fundamentals, clean code practices, and the ability to ship features independently while collaborating effectively with a remote team. The ideal candidate writes well-tested Kotlin / Android code, has experience with Android Studio and Firebase, and can contribute to architecture decisions for systems serving thousands of users. You'll participate in code reviews, technical planning, and sprint ceremonies while owning features from implementation through deployment.
Key Responsibilities
- Own Jetpack Compose implementation and optimization — configuration, customization, and ongoing enhancement based on business needs
- Manage Kotlin Coroutines workflows including setup, user training, and continuous improvement of processes
- Implement and maintain Room Database ensuring seamless integration with existing systems and workflows
- Build and maintain Kotlin / Android application features following clean code and SOLID principles
- Write comprehensive tests — unit, integration, and e2e — maintaining high test coverage
- Review code from teammates with constructive, thorough feedback focused on correctness and maintainability
- Participate in sprint planning, estimation, and technical architecture discussions
- Deploy code to production using established CI/CD pipelines and monitor for issues post-deployment
- Debug and resolve production issues with root cause analysis and prevention measures
- Document technical decisions, API contracts, and system architecture for team knowledge base
Must-Have Qualifications
- Hands-on experience with Jetpack Compose — configuration, customization, and troubleshooting in production environments
- Proficiency with Android Studio as part of the Kotlin / Android development/operations workflow
- 3+ years of professional Kotlin / Android development experience
- Strong fundamentals in Kotlin / Android architecture patterns and best practices
- Experience writing tests and maintaining codebases with good test coverage
- Git proficiency — branching strategies, code review workflows, and conflict resolution
- Clear English communication skills for daily standups, code reviews, and documentation
Nice-to-Have Skills
- Google Associate Android Developer certification or equivalent validated credential
- Google Professional Cloud Developer certification or equivalent validated credential
- Experience with advanced Kotlin / Android features: Kotlin Coroutines, Room Database, Navigation Component
- Familiarity with the broader Kotlin / Android ecosystem including Firebase and Google Play Console
- Contributions to open-source projects or a notable GitHub/portfolio presence
- Experience with CI/CD pipelines, Docker, and cloud deployment
Interview Tips
Technical Coding Exercise
Give a small, realistic Kotlin / Android coding challenge that tests fundamentals — clean code, edge case handling, and test writing. Time-box to 45-60 minutes.
Architecture Whiteboard
Present a system design problem relevant to Kotlin / Android. Evaluate their approach to scalability, data modeling, and trade-off discussions.
Code Review Simulation
Show a Kotlin / Android pull request with both good patterns and subtle issues. Assess what they catch, how they communicate feedback, and what they prioritize.
Past Project Deep-Dive
Have them walk through their most challenging Kotlin / Android project. Ask probing questions about architecture decisions, obstacles, and what they learned.
Typical Team Structure
Team Size
2-5 Kotlin / Android developers
Reports To
Engineering Manager, Tech Lead, or CTO
Collaborates With
Product Management, QA/Testing, DevOps, Design
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