Hi, I’m Grzegorz, a senior software engineer at Automattic and a passionate open-source contributor, specializing in web development and modern JavaScript frameworks. With over 20 years of programming experience, I’ve built my career crafting scalable, high-performance web applications and contributing to projects that empower millions of users globally.
I’ve had the privilege of working on WordPress core, where I help shape the block editor, improving how people create and manage content on the web. My technical expertise spans frontend and backend development, with a strong focus on performance optimization, maintainability, and extensibility. Beyond coding, I’m passionate about mentoring engineers and fostering collaboration within distributed teams.
Outside of Work
When I’m not coding, I enjoy life in picturesque Oleśnica, Poland, with my wonderful wife, Ania, and our two daughters, Zuzia and Tola. I’m an avid sports fan who loves playing basketball and running, as well as watching NBA games and soccer matches.
I’m also a traveler, always dreaming about exploring paradise islands, snorkeling in crystal-clear waters, and strolling along sandy beaches. I believe the best ideas often come from stepping away from the screen and immersing myself in new experiences.
What Drives Me
- Open-Source Advocacy: I’m deeply committed to open-source software and believe in the power of community-driven innovation.
- Collaboration: I thrive in distributed teams, solving complex problems and sharing knowledge to drive impactful results.
- Learning & Growth: Whether it’s mastering a new technology or mentoring a new contributor, I love opportunities to grow and help others succeed.
Skills & Expertise
- Frontend Development: JavaScript (React), HTML, CSS.
- Backend Development: Node.js (webpack, ESLint, Jest, Playwright), PHP (PHPUnit).
- Specialties: Technical leadership, open-source software, developer tools, frontend development, and API design.
Let’s Connect
I’m always open to exciting opportunities, whether contributing to impactful projects, collaborating with like-minded teams, or exploring new challenges in web development. If you’d like to connect, please reach out here or find me on LinkedIn.
A Fun Fact
One of the first websites I built in 1999 is still live today: foto.ziolo.eu. It’s a nostalgic time capsule that reminds me how far the web has come and how much I’ve grown as a developer.