Job Overview
Location
European Union
Job Type
Full-time
Category
Android Developer
Date Posted
July 9, 2026
Full Job Description
đź“‹ Description
- • 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.
Skills & Technologies
See exactly how your profile matches this role — strengths, skill gaps, and what to do about them.
About Ruby Labs Ltd.
Ruby Labs Ltd. is a London-based product studio that builds and scales consumer subscription mobile and web applications. The company focuses on health, wellness, and productivity verticals, developing apps such as Hint, Able, and the award-winning fitness platform FitCoach. Using data-driven growth and proprietary technology, Ruby Labs rapidly prototypes, launches, and iterates products to serve millions of global users. The team combines engineering, product design, and performance marketing expertise to create sustainable digital businesses. Founded in 2018, Ruby Labs operates a portfolio of self-funded apps, emphasizing user privacy, scientific validation, and long-term customer value.
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