Lead Mobile Developer (React Native) – as of now

This job posting expired and applications are no longer accepted.
MAGNUM EST Digital Health GmbH Published: February 28, 2018
Job Type


YAS – Join us and our users for a healthier and more active lifestyle!

We are looking for a Lead Mobile Developer (React Native) for our Berlin Startup focused on consumer-oriented Digital Health solutions. Our mission is to provide users an innovative mobile engagement platform that supports a healthier and more active lifestyle. Our YAS-App was successfully launched in 2016. We are now taking YAS to the next level.

YOUR TYPICAL DAY as an Lead Mobile Developer at YAS might include the following: 

  • Design and develop hybrid applications using React Native
  • Create new architectures for hybrid applications based on React Native
  • Migrate existing native applications to a hybrid architecture
  • Bridge custom SDKs or native modules with React Native
  • Find solutions for performance and UI limitations of React Native
  • Optimize components for maximum performance across of devices and browsers
  • Interact with product managers, UX designers, business analysts, and back-end teams
  • Advise product owners and stakeholders on technical feasibility of their ideas
  • Integrate app analytics and notification services
  • Document your architectures and transfer knowledge to (native) developers
  • Set up build and deployment processes


  • 7+ years experience developing iOS (Objective-C, Swift) and Android (Java) apps
  • 5+ years experience with professional JavaScript development (e.g., React Native, nodeJs, React, Angular)
  • Thorough understanding of ReactNative and its core principles
  • Experience with popular workflows (such as Flux or Redux) and  side effect models (such as Sagas)
  • Familiarity with cloud message APIs and push notifications (e.g., on AWS)
  • Experience building with white label apps and multi-tenant architectures
  • Ability to gather and understand business requirements and translate them into technical requirements
  • Passion for high quality code, efficient development processes, and light weight solutions
  • High motivation, reliability, and independent work style
  • Very good German and English skills


  • This is a permanent position as lead mobile developer within our IT team in Berlin.
  • We offer you the unique opportunity of shaping a digital health startup in its growth phase.
  • You will work closely with our head of IT and our Product team.
  • You have the opportunity to develop your own entrepreneurial skills.
  • Challenges and room for personal and professional development.
  • Responsibilities from day one and flat hierarchies.
  • Being part of an awesome international team in Berlin-Mitte.



Great! We want to meet you! Please get in touch and send your application to Christin to [email protected]. We are looking forward to meet you in our office or via a first skype call.

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