Szymon Chmal
Senior Software Magician @ Callstack
I'm a frontend engineer turned team lead who's always been driven by curiosity and a huge believer that the best products come from great people working together.
Right now, I'm on a mission to build a new generation of React Native developer tooling. I want to make it genuinely pleasant, and even fun, for developers to build extraordinary cross-platform apps. By focusing on the Developer Experience (DX), I'm helping teams move faster and stay focused on what really matters: their users.
I love talking shop and sharing what I've learned. I've given over 50 talks at conferences like WeAreDevelopers, and I'm always happy to swap war stories from the dev trenches. I'm also a Microsoft MVP and I lead the GDG Toruń community in my beautiful current home.
Experience
React Native Expert
Sept 2024 – PresentCallstack
As part of the Callstack Incubator, I am dedicated to engineering a new generation of React Native developer tooling. I focus on creating high-impact open-source solutions that radically improve the developer experience (DX), making it more pleasant and efficient to build extraordinary mobile applications.
Tech Lead
Apr 2021 – PresentWomanUp
As Tech Lead, I guide the engineering team in building a robust mobile platform using React Native and supporting web interfaces. My role encompasses architectural decision-making, project management, and cloud infrastructure logic in Node.js to ensure a seamless user experience.
Founder & Leader
June 2024 – PresentGDG Toruń
Founded and currently lead the region's premier JavaScript-focused community. We bridge the gap between industry and academia by engaging with the local university and organizing regular meetups that foster knowledge exchange among the next generation of engineers.
Senior Frontend Developer
Oct 2022 – July 2024Bright Inventions
Delivered high-quality frontend architectures and solutions, focusing on code maintainability, performance optimization, and refined user experiences.
React Architect / Full Stack Developer
Jan 2020 – Sept 2022Airnauts.com
Architected complex single-page applications across a diverse stack including React, Vue, and Angular. Beyond coding, I played a key role in shaping the engineering culture by conducting interviews and mentoring junior developers, alongside building distributed backend services in .NET Core.
Frontend Engineer
Aug 2020 – Mar 2021e-Kiosk S.A.
Focused on the core stability and feature expansion of a major React Native application. I was responsible for debugging critical issues and implementing new functionalities that enhanced the digital reading experience.
Full Stack Developer
June 2018 – Jan 2020Sellions.com
Developed a comprehensive hybrid mobile solution using Ionic and a monolithic Java/Spring backend. I engineered systems for high-volume batch processing using Spring Batch, ensuring efficient data handling for enterprise-scale files.
Education
Master of Engineering, Applied Computer Science
Warsaw University of Technology
2020 – 2022
Bachelor of Engineering, Applied Computer Science
Warsaw University of Technology
2016 – 2020