Senior Android Engineer - App Platform (all genders)

Babbel; Berlin; Hybrid; Vertraulich; Vollzeit

Zusammenfassung

A leading language learning platform based in Berlin is seeking a Senior Android Engineer to join their app development team. In this role, you will design and maintain core Android components while working in a collaborative atmosphere. The ideal candidate should be proficient in Kotlin, Java, and various Android libraries, with a strong focus on CI/CD processes. Additionally, you will have opportunities for personal growth and hybrid work arrangements, along with various employee perks.

Leistungen

30 vacation days

Flexible working hours

Internal learning opportunities

Mobility benefits

Discounted Urban Sports Club membership

Qualifikationen

• Experience developing multiple Android apps.
• In-depth knowledge of MVVM and MVI design patterns.
• Ability to maintain high-quality CI/CD pipelines.
• Experience with AI tooling for software enhancement.

Aufgaben

• Design core Android platform components.
• Drive architecture decisions and establish best practices.
• Collaborate cross-functionally on User Experience and API design.
• Participate in knowledge-sharing and code reviews.

Kenntnisse

Kotlin

Java

Jetpack libraries

Coroutines

RxJava

UI testing with Espresso

Mentoring engineers

Fluent English

Tools

Fastlane

Bitrise

Github Actions

React

Jobbeschreibung

We are looking for a full-time Senior Android Engineer to join our Babbel App Platform engineering team!

In your role as a Senior Android Engineer, your mission will be to change the future of language learning while working in a flexible and stimulating environment.

Working in a diverse team together with motivated colleagues, you will be collaborating and diving into different disciplines to broaden your knowledge in other fields of expertise as well as share your own. You will contribute to a great architecture and build the base of an easily extendable and well maintainable application.

We are using a hybrid approach to develop the self-study learning experience. In your role, you will have the opportunity to work with a mix of native Android, native iOS and frontend Web technologies (e.g. React and Redux).

You will:

• 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)

You have:

• Developed several Android apps using: Kotlin, Java, Jetpack libraries (Compose, Lifecycle, etc.), DI (Dagger/Hilt), Retrofit, WorkManager, 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/RxKotlin
• 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.
• Some experience with, and an interest in learning more about, frontend web development using React.
• 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

Please note that our company’s operating language is English, so you will need to be able to work in English.

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.