Open Position: Senior Mobile Developer / Team Lead

Fyx ( is the transactional messenger for the construction industry. With the Fyx app, construction professionals can order any building material in a few seconds. Fyx is attacking a >300bn Eur opportunity, was founded in 2019 by a team of serial entrepreneurs, and is funded by some of Germany’s most prolific investors.

At Fyx, you will work with a dynamic bunch of excellent individuals. We believe that work should be challenging and fun at the same time. We strive to learn, grow and build great products.

We are looking for a Senior Mobile Engineer with the potential to become Team Lead Mobile to join our team in Berlin. 

Your responsibilities:

  • Develop our messenger app using modern mobile frameworks (React Native)
  • Integrate into an API of an off-the-shelf messenger backend
  • Ensure a great user experience and make sure that our customers use the app
  • Take the key decisions in the development of our App together with the Founders
  • Establish modern engineering practices that allow fast iterations and learning
  • Work closely with Sales and Design to understand user needs and translate them into features
  • Hiring more developers and taking leadership within the development team


Your profile

  • Proven track record of app development with React Native
  • Experience in developing messaging applications
  • Excellent understanding of state-of-the-art libraries and frameworks for modern Android development, build pipelines, code management, testing frameworks, and release processes
  • Ability to thrive in a startup environment and to handle uncertainty
  • Being a leader both on a personal and technical level
  • B.S./M.S. in Computer Science or similar qualification


We offer

  • Opportunity to build a product that solves a real world problem, reaches hundreds thousands of construction professionals and makes a billion dollar industry more efficient
  • Lay the foundations for an excellent engineering culture and tech stack
  • Competitive salary
  • Startup environment and a beautiful office in central Berlin location
  • Visa-support for non-EU nationals


Apply here:



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