Senior Android Engineer, AdTech (mfd)

About your tasks:

• Lead the design and development of scalable maintainable and high-performing Android applications using Kotlin and modern Android architecture patterns such as MVVM MVI and Clean Architecture.
• Define and evolve the Android application architecture ensuring scalability modularity testability and long-term maintainability.
• Drive the adoption and effective use of Jetpack Compose to build modern declarative reusable and responsive user interfaces.
• Design and build reusable mobile components for Retail Media and advertising experiences including Sponsored Products Sponsored Brands native placements display banners and personalized product recommendations.
• Integrate Retail Media placements naturally into product discovery search category product detail and other commerce journeys balancing monetization objectives with a high-quality customer experience.
• Collaborate with backend data product and ad server teams on APIs tracking contracts campaign metadata targeting attribution and measurement requirements.
• Build flexible and configurable solutions that enable new ad formats placements campaigns and monetization use cases to be introduced efficiently.
• Ensure best practices in modularization code quality testing and performance optimization define and evolve the apps architecture ensuring scalability and long-term maintainability
• Build reusable mobile components for Retail Media experiences including Sponsored Products Sponsored Brands product recommendations banners.
• Ensure engineering best practices across modularization code quality dependency management observability testing security and performance optimization.
• Improve CI/CD reliability build performance and release processes. 
• Maintain clear and comprehensive documentation for architecture decisions features and technical processes
• Review and guide critical technical and architectural decisions contributing to engineering standards and best practices across teams.
• Improve app stability performance and overall technical health.  
• Reduce technical debt strategically while enabling product teams through platform improvements. 
• Implement and evolve feature flags experimentation frameworks and A/B testing to validate new customer and advertising experiences through measurable outcomes.

Qualifications :

About you:

• Extensive experience in Android development with strong expertise in Kotlin.
• Deep understanding of the Android SDK and modern Android development practices.
• Hands-on experience with: Jetpack Compose
  • Coroutines & Flow
  • Dependency Injection (Hilt/Dagger)
  • REST APIs (Retrofit/OkHttp)
• Strong knowledge of clean architecture principles design patterns and modularization
• Experience with testing (JUnit Espresso MockK) and writing maintainable testable code
• Familiarity with CI/CD pipelines and modern development workflows
• Proven ability to take ownership of complex projects and deliver high-quality results independently
• Strong focus on performance scalability and user experience
• You collaborate effectively across teams and bring strong debugging and performance optimization skills. 
• Experience working in Retail Media AdTech MarTech large-scale e-commerce platforms.

Additional Information :

About your benefits:

In order to provide our employees with the best possible support for their individual needs we offer a wide range of benefits:

• Sports: Stay healthy. Profit from a membership (M) package at Urban Sports Club so that you can take advantage of a huge variety of sport offers.
• Mental Health: Get quick and professional help from psychologists of Likeminded if you feel overwhelmed in private or professional life. Anonymous and free of charge. 
• Work from Home: If your job does not require you to be present in the office we can arrange the place you work from individually - even for up to 20 days a year anywhere in the EU.
• Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Click here to learn more.
• Personal development: Grow! We support and encourage your individual development through various in- and external trainings.
• And many more :)

Remote Work :

No

Employment Type :

Full-time