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React / React Native Developer


3 weeks ago

Job type: Full-time

Remote (Poland)

Hiring from: Poland

Category: Software Development

Callstack is a software development company and a top global contributor to React Native - a Facebook Open Source framework for building web and mobile applications, using a hybrid approach - write once, run on many platforms at the same time.

We are leading the innovation on cross-platform technologies in order to make the software more accessible to everyone, worldwide. We don’t follow best practices, we set them by being at the forefront of everything React Native. We collaborate daily with the Facebook team on setting the direction for the future growth of the framework and support industry leaders all around the world to ship better mobile products to their users.

We are looking for an experienced React.js / React Native Developer to join our team. In this role you will act as a technology consultant and guide our clients through the most complex challenges of software development. You will also have a chance to contribute to the open source community by working on challenging projects, speaking at conferences and sharing your knowledge with the world.


You will:

  • Act as a technology consultant for our clients and help them build great products for multiple platforms.
  • Drive the development process by providing expertise in cross-platform technologies and tackling most complex programming issues.
  • Collaborate with development teams, CTOs, Project Managers and Product Owners from all around the world.
  • Have multiple possibilities to contribute to the open source community by working on projects led by our CTO, React Native core contributors and our Senior Developers.
  • Have an opportunity to learn React Native and improve mobile development skills.


You are:

  • A JavaScript enthusiast, who presents extensive knowledge and expertise within modern frameworks, libraries and best practices.
  • Skilled in and excited about React Native or React.js.
  • Interested in both web and mobile apps development.
  • Driven towards learning new technologies and knowledge-sharing initiatives.
  • Able to quickly acquire new technical expertise.
  • Fluent in English (B2 level and higher).
  • Engagement in open source community and documented contributions to any open source project would be a huge plus.
  • Prior experience with speaking at conferences and/or meetups, writing blog posts or any other forms of knowledge-sharing would be highly appreciated.


What we offer:

  • Working together with core contributors to several open-source projects such as React Native and Jest.
  • Private healthcare for you and your family - we do care about your health and well-being.
  • Co-financed Multisport Card or monthly allowance for other gym and sports activities - you choose!
  • A monthly lunch allowance to compensate for free lunches available in our office.
  • Fully-covered life insurance.
  • 24 paid days off and paid sick leave for B2B contractors.
  • Accounting costs refund for B2B contractors.
  • Flexible working hours.
  • Individual self-development budget.
  • Top-notch hardware - MacBook Pro, monitor, and peripheral devices.
  • Recurring team events - workation, weekend ski rides, cooking workshops, board games nights and parties.
  • Free entry for React Native EU conference. We will also support your participation in other international tech conferences and workshops.



  • 8 000 - 12 000 PLN net + VAT (B2B) 

Before you apply, please check if any restrictions apply in terms of time zone or country.

This job has a geo-restriction in place: Poland.

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