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
Find me on
Mike Grabowski
Mike Grabowski
Co-Founder & Supervisory Board Member
Find me on
Kris Lis
Kris Lis
CEO & Board Member
Find me on
Agnieszka Czmochowska
Agnieszka Czmochowska
CFO
Find me on
Michał Pierzchała
Michał Pierzchała
Principal Engineer
Find me on
Emilia Sękowska
Emilia Sękowska
Head of Marketing
Find me on
Radek Chrzempka
Radek Chrzempka
Head of People and Culture
Find me on
Michał Chudziak
Michał Chudziak
Director of Engineering
Find me on

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.