Callstack logo

Callstack

Callstack provides top cross-platform consultancy & development in React Native and React.js. We co-create and shape the technology as core contributors and innovators. Our main goal is to drive and accelerate software development innovation.
Software HouseInformation Technology100+Wrocław

Social media

Offers

Senior Automation Tester (with Java)

New
Callstack
4.4K - 6.12K USD
Wrocław, +4Locations

Senior Go Developer

New
Callstack
5.14K - 8.07K USD
Wrocław, +4Locations

Senior C++ developer with React or React Native

4d ago
Callstack
5.14K - 8.07K USD
Wrocław, +4Locations

Senior React Native Developer

New
Callstack
5.14K - 8.07K USD
Wrocław, +4Locations

Senior Automation Tester (with Java)

New
Callstack
4.4K - 6.12K USD
Wrocław, +4Locations

Our team

Michał Pierzchała
Head of Technology

UI engineer passionate about building mobile and web experiences, high quality JS tooling and Open Source. Core Jest & React Native Community contributor. Space exploration enthusiast.

Jakub Kłobus
Technical Development Lead

Software developer working at Callstack since the very beginning. After mastering web, he moved to React Native where he focuses on making Reason React Native next big thing. A fan of leadership as partnership.

Łukasz Chludziński
React Native Expert

RN developer with mobile background, highly skilled in performance optimization. Mentor in the field of Community and Trainings at Callstack. Podcast host at The React Native Show Podcast and DevSpresso: JS News.


Tech stack

React Native logo

React Native

React logo

React

Node.js logo

Node.js

JavaScript logo

JavaScript

TypeScript logo

TypeScript

N

Next.js


Take a closer look

How it all started?

The company was founded in 2016 by Mike Grabowski and Anna Lankauf. We grew very fast during the last few years, and now we are a team of over 100 highly skilled individuals that can help you with your React and React Native project.

How it all started?

What is unique about Callstack?

At Callstack You can develop your ideas in our R&D program. If you want to bring your visions to life in Open Source - Callstack will support you. Also we provide self- development budget. With our help you can upgrade your soft and managing skills to become a Mentor in the future.

What is unique about Callstack?

Blog & Podcasts

Also, there are plenty of possibilities to show your expertise: become a speaker on a conference, be featured in our blog, or podcast!

Open Source Leadres

During our journey we became the main contributors in Open Source, launching libraries like React Native Paper, Linaria, RN Testing Library etc.

React Native EU conference

We hold events such as conferences, meetups or hackathons. We are proud organizers of the biggest react native conference in the world (and the first conference in Europe) which focuses exclusively on React Native. It’s a unique place for sharing expertise and learning from the top industry leaders. Since 2017 we bring the React Native community together to discuss technical topics and network with fellow developers.

React Native EU conference


Blog post

How You Can Develop as a Callstack Developer | {callstack}
How You Can Develop as a Callstack Developer | {callstack}
How to Make Your Open Source Project Repository Contributor Friendly | {callstack}
How to Make Your Open Source Project Repository Contributor Friendly | {callstack}
Understanding React Server Components | {callstack}
Understanding React Server Components | {callstack}
How to Optimize Development Efficiency When You’re Building a Super App | {callstack}
How to Optimize Development Efficiency When You’re Building a Super App | {callstack}

Company insight


Social media

Offers

Senior Automation Tester (with Java)

Senior Automation Tester (with Java)

4 404 - 6 117 usd
New
Callstack
Senior Go Developer

Senior Go Developer

5 138 - 8 074 usd
New
Callstack
Senior C++ developer with React or React Native

Senior C++ developer with React or React Native

5 138 - 8 074 usd
4d ago
Callstack
Senior React Native Developer

Senior React Native Developer

5 138 - 8 074 usd
New
Callstack
Senior Automation Tester (with Java)

Senior Automation Tester (with Java)

4 404 - 6 117 usd
New
Callstack