Senior Android Engineer
Ruby Labs
•Remote
About The Position
As a Senior Android Engineer, you will play a key role in developing and maintaining our mobile app, ensuring high performance, scalability, and a seamless user experience. You will collaborate closely with the product manager and fellow developers to bring new features to life and continuously optimize our app. Your expertise in Kotlin and Android development best practices will be instrumental in driving innovation and maintaining our position as a leader in the Play Store.
Requirements
- 5+ years of professional Android development experience.
- Experience with B2C mobile apps built on subscription business models.
- Expert proficiency in Kotlin (coroutines, Flow, sealed classes, generics, extension functions).
- Strong command of Google Play Billing Library v7+ and subscription lifecycle: purchase flows, entitlement management, Real-time Developer Notifications (RTDN), and server-side validation (with RevenueCat or a custom equivalent).
- Deep understanding of Jetpack Compose and the Android View system, including interoperability and Compose state management (remember, State, StateFlow collection).
- Strong grasp of modern Android architecture: MVVM/MVI, Clean Architecture, unidirectional data flow, and modularization (Gradle multi-module).
- Proficiency with Jetpack libraries (ViewModel, Navigation, Room, WorkManager, DataStore) and Dependency Injection (Hilt/Dagger).
- Experience with CI/CD (GitHub Actions, Bitrise, or Gitlab CI), Gitflow, and Play Console / internal-track distribution.
- Automated testing experience: JUnit, Espresso, Compose UI testing, Turbine, and MockK.
- Strong debugging and profiling skills with Android Studio Profiler, LeakCanary, and Baseline Profiles.
- Experience integrating AI-driven features and/or AI-assisted development workflows.
Responsibilities
- Develop and maintain a high-quality Android application with a focus on performance, UI, and UX.
- Take ownership of development processes, ensuring clean, maintainable, and scalable code.
- Work with cross-functional teams to design, develop, and launch new features.
- Implement CI/CD pipelines and deployment best practices.
- Conduct code reviews and enforce coding standards.
- Profile and optimize app performance (memory, jank, startup, battery, APK/AAB size).
- Stay up to date with the latest Android development trends and integrate relevant advancements.
Benefits
- Remote Work Environment
- Unlimited PTO
- Paid National Holidays
- Company-provided MacBook
- Flexible Independent Contractor Agreement
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What This Job Offers
Career Level
Senior
Education Level
No Education Listed
