Matt Zeunert is a founder and front-end engineer with 13 years’ experience focused on website performance and Core Web Vitals. He runs DebugBear, a production monitoring and optimization service that alerts teams to regressions and provides actionable reports to improve loading speed. Matt combines hands-on front-end craft—React, Angular, D3 and performance debugging—with practical product work from freelance and startup engagements. He has contributed UI improvements to GoogleChrome/lighthouse, helping improve audits and accessibility of Lighthouse reports. Based in Lancaster, UK, he pairs entrepreneurial grit with a track record of shipping measurable performance wins for both enterprise and startup customers. An under-the-radar strength is his blend of analytics-driven optimizations and automated tooling that turns performance data into repeatable fixes.
Automated auditing, performance metrics, and best practices for the web.
Role in this project:
Front-end Developer
Contributions:186 commits, 30 PRs, 147 pushes in 10 months
Contributions summary:Matt primarily contributed to the front-end aspects of the Lighthouse project. Their commits focused on refactoring page functions related to DOM node selection and HTML snippets, introducing new features like node selectors, and modifying tap target audits, particularly around the exclusion of sticky elements. These changes involved modifying JavaScript code and test files to improve the accessibility and functionality of Lighthouse reports, enhancing the user experience. They also worked on ensuring the correct display of links in documentation by adding UTM parameters.
Contributions:49 commits, 5 PRs, 29 pushes in 1 year 4 months
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