> Markdown version of [/jobs/ext/1211096-senior-android-engineer](https://www.wearedevelopers.com/jobs/ext/1211096-senior-android-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Android Engineer - **Company:** Ruby Labs - **Location:** Eu, France (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Multitier Architecture, Artificial Intelligence, Android Software Development, Android Studio, Automation of Tests, Profiling, Code Review, Continuous Integration, Data Stores, Software Debugging, Dependency Injection, Github, Gradle, Interoperability, Mobile Application Software, Junit, Model View ViewModel, Software Deployment, Stateflow, Data Streaming, User Interface Testing, Kotlin, Modularization, Gitlab-ci, Git Flow, Jetpack Compose, Google Play - **Published:** July 9, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=65361c225ac2ae96 ## About the Role * 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. ## Description 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., * 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. ## Related Videos - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Pair Programming with Generative Agents: Refactoring Legacy Android at Speed](https://www.wearedevelopers.com/videos/100224-pair-programming-with-generative-agents-refactoring-legacy-android-at-speed) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [AI Agents Face-Off: Same App, Multiple Frameworks](https://www.wearedevelopers.com/videos/100192-ai-agents-face-off-same-app-multiple-frameworks) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix) - [Cross Platform Mobile Development Frameworks to Use in 2025](https://www.wearedevelopers.com/magazine/404-cross-platform-mobile-development-frameworks-to-use-in-2025) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Flutter Developer Salary [2023]](https://www.wearedevelopers.com/magazine/199-flutter-developer-salary-2023)