> Markdown version of [/@stephen-cooper](https://www.wearedevelopers.com/@stephen-cooper). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Stephen Cooper Senior Developer at AG Grid focused on web performance and bundle optimization. ## About Stephen Cooper is a Senior Developer at AG Grid, where he focuses on building highly optimized component libraries. He writes efficient code designed to keep web applications fast and lean. He helps developers master web performance by breaking down the mechanics of tree-shaking and minification. His recent guides and talks show engineers how to shed excess bundle size by identifying patterns that block bundlers, using pure code annotations, and tracking down bloat with tools like source-map-explorer. ## Past Sessions ### World Congress 2025 · July 9, 2025 Berlin, Germany - [A Practical Guide to Reducing Bundle Size](https://www.wearedevelopers.com/videos/1439-a-practical-guide-to-reducing-bundle-size) · 30 min · 🎥 Watch recording ## Videos - [A Practical Guide to Reducing Bundle Size](https://www.wearedevelopers.com/videos/1439-a-practical-guide-to-reducing-bundle-size) · Stephen Cooper ## Links - [LinkedIn](https://www.linkedin.com/in/scooper-dev/) - [Blog](https://dev.to/scooperdev)