Senior Android Engineer - App Platform

Your Learning Journey in This Role

As a Senior Android Engineer - App Platform, your mission is to change the future of language learning while working in a flexible and stimulating environment. You will collaborate within a diverse team of motivated colleagues, engaging with different disciplines to broaden your expertise and share your own knowledge. You’ll contribute to a robust architecture and help build the foundation for an easily extendable and maintainable application.

Babbel uses a hybrid approach to develop the self-study learning experience, offering opportunities to work with native Android, native iOS, and frontend web technologies such as React and Redux.

• Design and maintain core Android platform components, shared modules, and internal SDKs that power multiple feature teams
• Drive architecture decisions, establish best practices, and ensure scalable, high-quality Android development across teams.
• Improve build systems, CI/CD pipelines and performance tooling
• Collaborate cross-functionally to make informed decisions ranging from User Experience to API design
• Participate in our knowledge-sharing culture: code reviews, pair programming, knowledge-sharing sessions, feature demonstrations
• Maintain and proactively improve the overall technology stack and infrastructure of the Android app(s)

• Developed several Android apps using: Kotlin, Java, Jetpack libraries (Compose, Lifecycle, etc.), DI (Dagger/Hilt), Retrofit, Work Manager, Testing with Espresso, Mockito, and UI test
• In-depth knowledge of design patterns, particularly MVVM and MVI architectures.
• You have experience with Coroutines/Flows and RxJava/Rx Kotlin
• The ability to maintain and develop CI/CD pipelines, preferably with Fastlane, Bitrise, Github Actions
• Expertise with AI tooling and infrastructure, including LLM-powered development tools (e.g., Cursor) and agentic AI systems, with the ability to apply them effectively to accelerate engineering workflows and improve productivity.
• Fluency in written and spoken English
• Experience with how a deliberate setup of process and tooling can be used to ensure delivery of high quality software
• Strong desire to learn new things and share knowledge with others
• Experience in mentoring other engineers

Some perks of becoming a Babbelonian

• Enjoy 30 vacation days. Plus family and life situation counseling.
• Set up the right schedule for you with flexible working hours and enjoy Jobbatical (up to 3 months working inside the EU and the UK), plus work from our fully equipped office with nap, faith and family rooms.
• Learn and grow with the internal learning opportunities, and use a yearly learning & development budget for external training. Learn languages with Babbel for free with your full access to Babbel.
• Take advantage of your mobility benefits options and a discounted Urban Sports Club membership.
• Be part of our DE&I Community Networks (such as FLINTA in Tech, and Queer Collective), attend cultural and regular social events.

Diversity at Babbel

As part of our ongoing journey towards building a diverse, equitable and inclusive company, we welcome everyone to apply, especially those individuals who are underrepresented in tech. We are a learning company, inside and out, and we encourage you to apply even if you do not fit all the technical requirements - all candidates are assessed based on skills, qualifications and on our business needs.

Please state your pronouns in your application, and let us know if you’d like to be addressed by a name other than the one appearing on your official documents. If you have a disability or special need, feel welcome to inform us, so that we can provide you with the proper assistance in the application process.