Szymon Chmal

Callstack

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.

WomanUp

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.

GDG 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.

Bright Inventions

Delivered high-quality frontend architectures and solutions, focusing on code maintainability, performance optimization, and refined user experiences.

Airnauts.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.

e-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.

Sellions.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.