
Hi I’m Felix!
Senior Software Engineer at Google / WordPress Core Committer
Projects I have contributed to
I am directly contributing to the WordPress core platform, which powers millions of websites, in fact more than 40% of the entire web. I am also contributing to several popular WordPress plugins and other open-source projects that improve performance and transparency of the open web. Below you find some of the projects that I have contributed to.
Latest posts

Measuring website performance using WebPageTest (with WordPress 6.2)

Rebuilding my website using a block theme

Sharing content from your device directly into a new WordPress post
WordPress core contributions
I have been a WordPress Core Contributor since version 4.3 which was released in August 2015. I’m currently a component maintainer of the Multisite component and the REST API component, but regularly work in other areas as well. With WordPress version 4.6 I became one of the “Recent Rockstar” developers for the first time, and since November 2016 I have been a Core Committer.
Most recently, I was the first Performance Lead as part of the WordPress 6.2 release squad and the Co-Performance Lead for the WordPress 6.3 release.
Over the course of time I have opened 240 tickets, received 359 props and made 257 commits. Working on WordPress Core and other open-source projects is a high priority for me, so I ensure I have work time available to dedicate to it.

Software Engineer at Google
I am currently a Senior Software Engineer at Google in a team where we collaborate with CMS platforms like WordPress to help web publishers and content creators succeed on the open web. A major part of this is enhancing user experience and performance of these platforms, as well as advancing the adoption of modern technologies and making them easier to use.
Our team is heavily involved in the WordPress Performance Team, and furthermore I have been working on open-source projects such as the Site Kit plugin for WordPress. My role in the team involves regular contributions back to the WordPress core platform, and engaging with user and developer communities across the globe.
This has been my dream job for a while, and I’m beyond grateful that I am part of this amazing team.

Before: Freelancer & Yoast
Before I joined Google, I was a freelancer working part-time for Yoast, who I have always admired and regarded as one of the very top companies in the WordPress space. They have an agenda that I can align with, a crazy-successful product, solid developers who are constantly improving… – I’m grateful to have been part of this wonderful team.
Not to forget, Yoast also give back to open-source a ton. As such, they enabled me as well to spend a significant amount of my time contributing to WordPress core.