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Join our ever-growing team

Work on apps used by millions, accelerate the innovation.

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Why we exist

We don’t follow best practices. We set them!

We are leaders in cross-platform development and consultancy. We accelerate innovation and growth. We nurture new ideas within our R&D program and drive the Open Source community by continuous support, contribution, and development. Helping the community is in our DNA. Find out more about our team.
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What we believe in

The values we stand for

Proactiveness icon
We constantly seek improvements. We bring passion and energy to work. We are always ready to discuss, challenge and submit ideas. We like to speak about everything React Native in our podcast.
Challenge icon
We challenge existing solutions. We have the courage and curiosity to challenge the status quo, find innovative solutions and produce something unique. We work on apps used by millions and do projects for various clients.
Community icon
We value the Open Source community. We are happy to contribute to React and React Native ecosystems every day. We encourage knowledge sharing. We develop ideas within our R&D.
Inclusion icon
We create equal opportunities. We aim at making the technology we co-create accessible to everyone everywhere. We provide an inclusive working environment.
Excellence icon
We strive for perfection in everything we do. We are a team of experts whose goal is to achieve the highest standards. We have a self-development budget for every Callstacker.
our clients’ developers
Be a technical lead
of international projects
Diversity icon
We respect uniqueness and individuality. Everyone is welcome to work with us, take part in our conference or other events. We embrace diversity to keep the workplace healthy and happy.
Act as a technology consultant for our clients and help them build great products for multiple platforms
Callstack team photo
Callstack team photo
Callstack team photo
Callstack team photo
Callstack team photo
Callstack team photo
Callstack team photo
Callstack team photo


Ready to dive into the React Native world?

what we offer

Boring & obvious benefits

Self-development budget
A monthly lunch allowance
Private healthcare for you & your family
Fully covered life insurance
Multisport Card or sports allowance
24 paid days off & 30 days paid sick leave
Amazing office in the city center
Flexitime and 100% remote work option
Accounting costs refund for B2B
Top-notch hardware - Apple devices
Team building events - workation, parties etc.
Free entry for React Native EU Conference

Where are we?
In the coolest office in Poland

Our office got a CBRE Poland Office Superstar 2021 award!


Let's work together!

Need help with React or React Native? Let us know!

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