<About Us />

Callstack is all about the people

Meet our team

Mike Grabowski

Mike Grabowski

GitHubTwitter
Co-Founder & CTO of Callstack. Mike is a React Native core contributor and the author of libraries like RNPM and Haul. Mike makes sure our infrastructure performs well to its limits.
Anna Lankauf

Anna Lankauf

Twitter
Co-Founder & CEO of Callstack. Anna is a young entrepreneur graduated from psychology that has also a broad expertise as UX Strategist. Anna makes sure that Callstack grows one step at a time.
Mike Chudziak

Mike Chudziak

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JavaScript developer working all across the stack. Highly experienced in Web and Mobile development, but also capable of designing APIs and CLI tools. In love with React Native and GraphQL.
Jakub Klobus

Jakub Klobus

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Software developer working at Callstack since the beginning. After mastering web, he moved to React Native where he focuses on making React Native Windows next big thing.
Wojtek Szafraniec

Wojtek Szafraniec

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Software developer working with React and React Native. He likes to cooperate with the team. Big fan of MobX and clean code. Always ready to learn new things.
Agnieszka Czmochowska

Agnieszka Czmochowska

Finance and Administration Manager. Can’t quit sports and, most of all, the basketball, which she couldn’t live without. In her spare time, she likes to travel and try different cuisines.
Ferran Negre Pizarro

Ferran Negre Pizarro

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Software developer with a broad experience in delivering first class React & React Native applications. Ferran develops Android apps as a hobby. He will also make sure you use Jest and test your code!
Krzysiek Pawlak

Krzysiek Pawlak

GitHub
Natural born project manager who loves to be involved deeply into the projects. He ensures projects quality and regularity of the progress. Pays attention to both technical and business aspects. After work - gym freak.
Piotr Drapich

Piotr Drapich

GitHub
Javascript developer working with React (Native) full-time. Having worked on the backend for quite some time, he mastered building apps with REST to its limits.
Satyajit Sahoo

Satyajit Sahoo

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Satya is in the 2016 Facebook’s TOP 5 external contributors list. You can find him everywhere. Satya is also a React & React Native ninja that will make your apps to stand above the others.
Łukasz Walczak

Łukasz Walczak

GitHub
Javascript developer who likes finding the most all-purpose solutions. He is characterised by precise and methodical approach to the problem. Open to new technologies and development opportunities.
Paweł Trysła

Paweł Trysła

GitHubTwitter
Fullstack Developer, the tooling guy with extensive knowledge of Webpack and Babel. Focused on cross-platform applications development and JavaScript technologies. Huge fan of Electron, functional programming and RxJS.
Ada Rutowicz

Ada Rutowicz

Marketing Manager, a long-time professional and passionate. Privately, a gamer and a horror movies junkie.
Mateusz Drulis

Mateusz Drulis

GitHubTwitter
React developer passionate with designing front-end solutions. Big enthusiast of bleeding edge technologies, in his free time plays with 3d engines.
Agata Leśniak

Agata Leśniak

IT Headhunter, who running end-to-end recruitment process and takes care about all HR cases. Strongly interested in modern HR tools and practices. Her Zen is a beach - if it’s possible, she can surf all day and night.
Krzysztof Borowy

Krzysztof Borowy

GitHubTwitter
Javascript developer, mastering skills at using React/React native and NodeJS development. Gaining experience as fullstack dev everyday.
Raúl Gómez Acuña

Raúl Gómez Acuña

GitHubTwitter
JavaScript orchestrator advocating declarative over imperative. Currently empowering the web and mobile with React and React Native applications. He also contributes actively to open source in his free time
Maciej Masłowski

Maciej Masłowski

GitHub
Junior front-end developer on the constant hunt for opportunities to learn more about the insanely fast-changing world of web programming. In rare free moments, he likes to travel, read, and, in the winter, ski.
Adam Trzciński

Adam Trzciński

GitHubTwitter
JS dev focused on enhancing his skillset with every day. Passionate with learning and getting to know new techs and skills.

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