Senior Android Engineer (Paris)

Vestiaire Collective is the leading global online marketplace for desirable pre-loved fashion. Our mission is to transform the fashion industry for a more sustainable future by empowering our community to promote the circular fashion movement. Vestiaire was founded in 2009 and is headquartered in Paris with offices in London, Berlin, New York, Singapore, Ho Chi Minh and Hong Kong and warehouses in Tourcoing (France), Crawley (UK), Hong Kong and New York.<br/>We currently have a diverse global team of 700 employees representing more than 50 nationalities. Our values are Activism, Transparency, Dedication and Greatness and Collective. We are proud to be a BCorp.<br/><b>About the role </b><span>We are seeking a </span><b>Senior Android Engineer</b><span> to join our dynamic mobile team and help us deliver outstanding user experiences. You’ll play a key role in developing innovative features for our mobile commerce application, impacting millions of users worldwide. You’ll collaborate closely with product, design, and backend engineering to shape the future of our mobile platform using modern Android technologies.</span><br/><b>What you will do </b><span>- Design, develop, and deliver high-quality Android features from concept through production via weekly release cadence.</span><span>- Take full end-to-end ownership of features—leading development, testing, release, monitoring and ongoing maintenance—with minimal reliance on QA and incident response teams. </span><span>- Work closely with cross-functional teams to transform product requirements into robust, scalable technical solutions.</span><span>- Apply best practices in modern Android development, ensuring code is maintainable, testable, and performant.</span><span>- Participate in code reviews, technical discussions, and architectural decisions to uphold high code quality standards.</span><span>- Optimize app performance and user experience, with a strong attention to UI/UX details.</span><span>- Use analytics and monitoring tools to measure feature success and identify opportunities for improvement.</span><span>- Contribute to knowledge-sharing and collaborating within the mobile engineering team.</span><br/><b>Who you are </b><span>- 5+ years of experience building consumer-facing Android applications.</span><span>- Deep expertise in Kotlin and modern Android development practices.</span><span>- Strong grasp of architectural patterns such as MVVM and Clean Architecture.</span><span>- Proficiency with Jetpack Compose and familiarity with reactive programming using Kotlin Flows and Coroutines.</span><span>- Experience working with RESTful APIs and integrating backend services.</span><span>- Proven experience deploying features to millions of users in production, with a focus on performance, debugging, and real-time monitoring.</span><span>- Excellent collaborator and communicator in cross-functional, multicultural environments.</span><span>- Product-minded engineer who understands how technical choices impact users and business outcomes.</span><b>Bonus:</b><span> If you've explored iOS development, we'd love to hear about it.</span><b>Extra Bonus:</b><span> We're especially excited about how AI can enhance development workflows—if you’ve been experimenting with AI-driven development, automation, or tooling, we’d love to hear about your ideas and experiences!</span><br/><b>Our Tech Stacks includes</b><span> :</span><b>Languages:</b><span> Kotlin, Java (Legacy)</span><b>UI:</b><span> Jetpack Compose, Android Views</span><b>Architecture:</b><span> MVVM, Clean Architecture, multi-module application structure</span><b>Async/Reactive:</b><span> Kotlin Coroutines, Kotlin Flows</span><b>Dependency Injection:</b><span> Koin</span><b>Networking:</b><span> Retrofit, OkHttp</span><b>Database:</b><span> Room </span><b>Testing:</b><span> JUnit, Mockito, Automated Tests with TypeScript/Appium</span><b>Tools:</b><span> Android Studio, Gradle, Git</span><b>CI/CD:</b><span> GitHub Actions, Fastlane, Bitrise</span><b>Monitoring:</b><span> Crashlytics, DataDog</span><b>Analytics &amp; AB Testing</b><span>: SnowPlow, LaunchDarkly</span><b>What we offer </b>🎁<br/>A meaningful job with an impact on the way people consume fashion and promote sustainabilityThe opportunity to do career-defining work in a fast-growing French-born scale upThe possibility to work as part of a globally diverse team with more than 50 nationalities Two days to help Project - reinforcing your activist journey and volunteer for an associationSignificant investment in your learning and growthCompetitive compensation and benefits packageAs full member of our entrepreneurial project, you will be eligible to free shares<br/>Research indicates that people from underrepresented backgrounds<span>—</span>including women, people with disabilities, and other marginalized communities<span>—</span>often hesitate to apply for roles unless they meet every single requirement.<br/>At Vestiaire Collective, we believe tha