Central European Time zone ± 4 hours Remote (Country) Full-time

Ruby Labs is hiring a Senior Android Engineer

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.

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.

Benefits

  • Remote Work Environment: Embrace the freedom to work from anywhere, anytime, promoting a healthy work-life balance.
  • Unlimited PTO: Enjoy unlimited paid time off to recharge and prioritize your well-being, without counting days.
  • Paid National Holidays: Celebrate and relax on national holidays with paid time off to unwind and recharge.
  • Company-provided MacBook: Experience seamless productivity with top-notch Apple MacBooks provided to all employees who need them.
  • Flexible Independent Contractor Agreement: Unlock the benefits of flexibility, autonomy, and entrepreneurial opportunities. Benefit from tax advantages, networking opportunities, reduced employment obligations, and the freedom to work from anywhere.
Required Skills
KotlinCI/CD
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Job Details
Location Central European Time zone ± 4 hours
Work mode Remote (Country)
Employment Full-time
Department Engineering
Category Mobile
Posted a month ago
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Ruby Labs is a leading tech company that creates and operates innovative consumer products across the health, education, and entertainment industries.
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