Meet the team of
CALLSTACK experts

We are a great team of trusted React and React Native experts - passionate about what we do!

Callstack team illustration
Team illustration callstack

founders and executive team

Shaped by visionary minds and guided by strategic experts, our company thrives under their direction. With every step, our leaders embrace innovation and go beyond.  Step into a world of custom-crafted solutions to your needs. Connect with us and discover the value our powerhouse team brings to the table.

Anna Lankauf
Anna Lankauf
Co-Founder & Supervisory Board Member
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Mike Grabowski
Mike Grabowski
Co-Founder & Supervisory Board Member
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Kris Lis
Kris Lis
CEO & Board Member
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Agnieszka Czmochowska
Agnieszka Czmochowska
CFO
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Michał Pierzchała
Michał Pierzchała
Head of Technology
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Emilia Sękowska
Emilia Sękowska
Head of Marketing
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Radek Chrzempka
Radek Chrzempka
Head of People and Culture
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Michał Chudziak
Michał Chudziak
Director of Engineering
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core contributors and
community members

We truly value Open Source and understand the importance of active engagement in the community. Our Team takes the lead in crafting, maintaining, and refining essential tools,  they strive to elevate the developer experience, contributing to the ongoing success and growth of the React Universe.