My background and core competence is systems software engineering, but I love the whole process of building products. I've been in startups that have succeeded and others that have failed. I enjoy writing code, and understanding how other people will use it.

I'm Chief Open Source Officer with eBPF pioneers Isovalent, creators of the Cilium project, which provides cloud native networking, observability and security. I'm a member of the Open UK Board. I was chair of the CNCF's Technical Oversight Committee 2019-2022, and I co-chaired the KubeCon / CloudNativeCon 2018 events in Copenhagen, Shanghai and Seattle.

When I'm not working you'll quite likely find me on a bike (in real life or racing on Zwift), at a gig, eating & drinking with friends, doing yoga or making music. You might see my drum kit in the background on Zoom calls - I'm a mediocre drummer at best, but it's fun!

I’ve written a book published by O’Reilly, called Container Security: Fundamental Technology Concepts that Protect Containerized Applications. Support independent bookstores by buying your copy from Bookshop.org!