Senior Android Developer

Join our team as a Senior Android Developer or Tech Lead. You'll be embedded in a cross-functional domain team and own the end-to-end development of impactful features. You'll shape architecture decisions, raise the bar on engineering quality, and mentor other engineers. If you're passionate about mobile engineering and making a real product impact, this is the role for you.

• Conception et développement de nouvelles fonctionnalités pour l'application Android, en mettant l'accent sur la gestion des flux de trésorerie multi-comptes, les transactions bancaires et les paiements.
• Responsabilité de la qualité du code, de la performance et de la stabilité, y compris les tests automatisés et les revues de code approfondies.
• Collaboration étroite avec les équipes Backend, QA, Design et Produit pour façonner les solutions de bout en bout, et prise de décisions techniques au sein de votre domaine.
• You're pragmatic and have a proven track record of shipping products that matter. You communicate clearly across disciplines and thrive in a cross-functional environment where everyone is solving the same customer problem together
• Deep understanding of OOP, SOLID, and Clean Architecture
• Experience with Feature-module architecture in production
• Reactive programming & async: RxJava, Kotlin Coroutines / Flow
• Networking: Retrofit
• Confidence with Git / GitLab, including setting up and maintaining GitLab CI/CD
• Modern UI: Jetpack Compose
• Clear, concise communication in English across technical and non-technical audiences
• A builder's mentality — you care about the product, the users, and the outcomes, not just the code
• Dependency injection: Dagger 2, Hilt, or Koin
• Navigation: Cicerone, Jetpack Navigation Component
• Solid experience with presentation layer patterns — MVI, MVVM, and MVP — and the ability to choose the right one for the context
• Strong knowledge of Kotlin (Java knowledge is a plus) and 5+ years of commercial Android development
• Hands-on experience with our core stack:
• Practical experience with Firebase (FCM, Analytics, Crashlytics)
• Background in fintech or experience with financial products — you understand the stakes
• Solid grasp of mobile security best practices (especially critical in our domain)
• Experience profiling and optimizing UI performance — reducing overdraw, improving recomposition efficiency in Jetpack Compose, and hitting smooth 60/120fps rendering
• Hands-on work with performance tooling: Android Profiler, Perfetto, Baseline Profiles, or similar
• Published apps on Google Play you're proud of
• An active GitHub profile with code you're happy to share
• Hands-on experience with AI agents and LLM tools (Claude, Cursor, Copilot, etc.) — setting up agent environments, writing prompts, skills, and behavioral rules
• Experience with AI-powered IDE tools (Cursor, Windsurf, GitHub Copilot, Claude Code, etc.) — including agent mode, rules files configuration, and integrating AI into the daily development workflow
• Understanding of model capabilities and limitations — knowing which model fits which task and how to manage the context window effectively
• Ability to evaluate and verify AI-generated output — using automated tests, linters, and critical review to catch hallucinations and errors
• Awareness of AI security risks — prompt injection, data leakage, and safe handling of untrusted inputs in agentic workflows