Cross-platform development experts

We support and inspire other developers and companies to launch their products for everyone at the same time, on every platform

About us

Callstack supports and inspires other developers and companies to launch their products for everyone, at the same time, on every platform. We are strong open source contributors, core contributors to React Native, cross-platform development experts and a team of developers passionate about new technologies. We pride ourselves on providing sustainable, top-end solutions to our clients from all around the world. We are recognized in React Native Community as contributors to Open Source projects, organizers of React Native EU as well as speakers at several international conferences. We also organize regular community meetups in our HQ in Wrocław, Poland.

Join us

Current openings

Senior React Native Developer
Software Development
  • Wrocław, Dolnośląskie, Poland
React Developer
Software Development
  • Wrocław, Dolnośląskie, Poland
Senior React Native Developer - Remote (Poland)
Software Development
  • Remote job
IT Recruitment Specialist
  • Wrocław, Dolnośląskie, Poland
IT Project Manager
  • Wrocław, Dolnośląskie, Poland

What we offer

  • Working side by side with core contributors of several open source projects such as React Native and Jest
  • Free entry for React Native EU conference. We will also support your participation in other international tech conferences and workshops
  • Flexible working hours and remote work possibility
  • Top-notch hardware - MacBook Pro, monitor and peripheral devices
  • Individual self-development budget
  • Private healthcare for you and your family - we do care about your health and wellbeing
  • Co-financed Multisport Card or monthly allowance for other gym and sports activities - you choose!
  • Fully-covered life insurance
  • Accounting costs refund for B2B contractors
  • 24 paid days off and paid sick leave for B2B contractors
  • Free lunches delivered to our office every day! Or a monthly lunch allowance if you prefer eating outside
  • Recurring team events - workation, weekend ski rides, cooking workshops, board games nights and parties
  • Fresh fruits, snack & sodas in our kitchen
  • Cool office in the city center

Want to work with us? Drop us a line!


Our Office

Rybacka 7, 53-656 Wrocław, Poland

Rybacka 7, Wrocław, Poland