Senior Android Developer (f/m/d) – Permanent & full (or part) time in Berlin

Driven by the vision to improve well-being and therapy outcomes of cancer patients, we are creating a digital companion for cancer patients, the Mika-App. Mika, founded in 2017 by Dr. Gandolf Finke and Dr. Jan
Simon Raue is a VC-backed e-health company. We are a young and spirited team with the passion to making a difference for those affected by cancer. We care! – Do you?

The development team is small but growing and brings a lot of experience across several platforms. You would work along with another Android developer who works part time. The two of you would be considered the experts on all Android issues and there’s a lot of opportunity to have a large impact within the team and the product. Our product is centered around the native Android and iOS Apps with tight integration into the mobile operating system.


  • Implement new features and adopt existing features of the Android version of the Mika App
  • Work closely with product management, design, the tech lead and the other members of the development team to carry the vision & business goals into the Android version of the Mika App
  • Coordinate with the data science team to integrate analytics into the App
  • Manage submission and release processes to the Play Store infrastructure
  • Interface with external DevOps team to manage services supporting new features

Required tech skills

  • Expert knowledge of Fragment lifecycle, state handling, ViewModel/SavedStateViewModel
  • Very good knowledge of Jetpack Navigation and Safe Args
  • General knowledge of the AndroidX ecosystem
  • Be able to design with composition over inheritance

Nice to have tech skills

  • Retrofit + Gson or Jackson
  • Android View Binding
  • RxJava (we only use a limited subset)
  • Structuring projects with multiple Gradle modules
  • Create custom views, themes, and adapt Material Components for Android


  • Choice of programming language Java or Kotlin
  • Develop new features with Jetpack Compose once out of beta if you like
  • Modular App with minimal dependencies between modules


  • A dynamic environment in which you can make an important contribution to improving cancer care
  • Flat hierarchies, teamwork, an international team and transparent communication
  • An awesome workplace at the center of Berlin-Mitte (but also the possibility to work from home) and an environment to change
    people’s lives

Does this sound exciting to you? Do you want to join a dedicated and fast-growing company with the vision to improve patients’ lives? Send your application via join dot mika dot com
– We are looking forward to getting to know you!

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