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Navan is looking for a Senior Android Engineer who is passionate about pushing mobile technologies to their limits. In this role, you will collaborate with a team of talented engineers to design, build, and enhance the next generation of our mobile applications in the travel management space. You will own critical features—from high-performance booking flows to real-time expense management—ensuring a seamless, world-class experience for millions of global users. What You’ll Do: Design, Build, and Evolve: Architect and develop end-to-end features using Kotlin and Jetpack Compose . You will build responsive interfaces while evolving the robust architecture that powers them. Build Enterprise-Grade Workflows: Create intuitive UIs and powerful logic for complex domains such as dynamic travel policies, approval chains, and real-time synchronization. Optimize Performance: Analyze and optimize UI performance, memory efficiency, and background processing to ensure a high-quality user experience. Own Features End-to-End: Take technical ownership of a problem domain, facilitating the design, development, and launch of key features and microservices. Champion Best Practices: Contribute to a culture of technical excellence by writing high-quality, well-tested code and advocating for modern testing and monitoring standards. Collaborate Across Teams: Work cross-functionally with Product and Design to deliver complex, cross-domain features in a collaborative environment. What We’re Looking For: 4-6 years of experience developing high-quality Android applications in a fast-paced environment. Deep Proficiency in Kotlin as the primary development language, including experience with Coroutines and Flow . Modern Android Stack: Hands-on experience with Jetpack Compose , Hilt/Dagger , Retrofit, Espresso . Architectural Knowledge: Strong understanding of MVVM/MVI patterns and Clean Architecture principles. Solid foundation in data structures, algorithms, and design. Platform Fundamentals: Deep knowledge of the Android SDK, threading, offline storage, caching optimization, localisation and accessibility. Engineering Rigor: Proven ability to ship production-quality code equipped with robust testing (Unit, Integration) and documentation.  Efficiency: Ability to leverage AI development tools (e.g., GitHub Copilot, Cursor) to accelerate development while maintaining high code quality.