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Senior Firmware Developer (m/f/d)


Job description


Welcome to the world of Zoi. We build the digital evolution of our enterprise customers, closing the gap between enterprise IT and new technologies. Zoi strives to bring the cloud to the Retail and Manufacturing industries with innovative solutions that deliver real value.

We are expanding our European teams in Stuttgart and Berlin. Just choose your favorite Zoi city! Travel between our locations is possible.


  • In interdisciplinary project teams, you work out the requirements for the firmware to be developed and then implement them
  • In close coordination with the hardware developers, you define the hardware required for product development
  • You develop the firmware for networked IoT devices
  • You are comfortable in the role of project leader and confident in communicating with project partners as well as customers


  • You have a degree in computer science, software engineering or a similar discipline
  • Many years of professional and project experience in firmware development
  • Several years of experience in the creation of software system architectures as well as their documentation
  • Good experience in programming microcontrollers with C++/ C
  • Good knowledge of software testing and test automation
  • You have a strong analytical mindset as well as a high level of commitment and initiative
  • A good command of written and spoken English and German rounds off your profile

Job requirements

Do you like to be surrounded by brilliant minds? Awesome. At Zoi, you become part of our community of tech enthusiasts and develop your full potential. Create fresh ideas and shape the digital transformation of our enterprise customers sustainably.

  • GOOD WORK SHOULD BE REWARDED - which is why we offer various bonus models at our company
  • TIME IS WISDOM - 20 % of your working time is available for experimenting and education

  • SKILL YOURSELF UP - Zoi can only be as good as you are. That’s why we value constant training and development

  • BE FREE - thanks to our absolutely flexible working hours and work remotely from any of our locations
  • DEVELOP YOURSELF - with our individual certification and training plan
  • FAMILY COMES FIRST - rely on our financial support for childcare
  • REFUEL - at our regular free Friday lunch

Zoi is an equal opportunity employer, we're committed to helping you do your best work. Our promise is to champion diversity, build an inclusive culture and do our part to create a more equitable professional landscape.