Senior Android Engineer in London

Navan is looking for a Senior Android Engineer to design, build, and enhance our mobile applications in the business expense management space. As a key contributor, you will work closely with our international team of engineers and domain experts to build new features and improve our product. We are looking for engineers who can deliver high-quality work, can lead complex projects and contribute to clear technical direction.

What You'll Do

• Design, build, and ship Android features in a large production app.
• Contribute to Android infrastructure so delivery stays fast and reliable.
• Review code, give feedback to other developers, and write technical documentation to improve coding practices and code quality.
• Lead development initiatives, whether by introducing new technologies or by raising the bar for existing code, practices, or architecture.
• Take part in decisions with peers and stakeholders on technology, design, and product direction.
• Triage product and application issues, and respond quickly to customer problems.

What We're Looking For

• 5+ years of experience developing high-quality Android applications.
• Strong understanding of the full app development lifecycle.
• Proficiency in Kotlin and building user interfaces with Jetpack Compose.
• Solid understanding of the Android SDK: App components (Activities, Services, receivers, providers) and how they fit together.
• How the Android applications you develop fit into the Android OS lifecycle: notifications, deep links, battery modes, network state, persisting data, and permissions.
• Performance tuning and optimization.
• Gradle builds and modules.
• Strong understanding of concurrency practices and experience working with coroutines.
• Must be capable of making architectural judgment calls based on real data and requirements.
• Working knowledge of MVVM and standard multi-tier architecture.

Nice to Have

• Bachelor’s degree in Computer Science or a related technical field.
• Experience with CI/CD, automated testing, and publishing to the Play Store.
• Solid foundation in data structures and algorithms, with a focus on delivering testable, scalable, and maintainable code.
• Experience using AI / LLM tools in day-to-day development, including how to keep quality, review standards, and security intact when you use them.
• Experience with modern Android frameworks such as Dagger/Hilt and OkHttp/Retrofit.
• Experience building automated test suites with Espresso/kakao and a clear view of what belongs in unit, integration, and UI tests.
• Familiarity with accessibility best practices for mobile applications.
• OAuth, mobile app authentication, and data safety.
• Material Design principles, mobile UX practices, and patterns.

Workplace Policy

Navan believes in the value of in-person connections, whether that’s sitting down to have lunch with one another, taking a walking 1:1, or collaborating in a room together. The connections forged through face-to-face interactions improve company culture and drive business results. Navan invests in global office spaces — in the U.S., Europe, and Asia, among others — that feel welcoming. In-office perks such as company-provided lunches and happy hours create a strong team environment to help you do your best work. Our employees work from the office four days a week. Please expect this policy for all roles that are tied to an office.

Equal Opportunity

Navan is an equal opportunity employer. We make all employment decisions based solely on merit. We provide equal employment opportunity to all applicants and employees without discrimination on the bases of race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We prohibit any such discrimination or harassment. This policy applies to all terms and conditions of employment, including hiring.

Accommodations

Navan complies with the Americans with Disabilities Act (ADA), as amended by the ADA Amendments Act, and all applicable state or local law. Navan will reasonably accommodate qualified individuals with a disability in connection with applications for employment as required by law.