Summary
Karl Thiessen is a Linux and BSD consultant based in San Francisco with 13+ years of experience building and automating test and CI systems for large open-source projects and media companies. He led continuous integration and test engineering efforts at Mozilla, driving reliability for Firefox and cloud services before returning to independent consultancy at Giggling Dragon. Comfortable deep in systems, kernels, and automation, Karl pairs hands-on engineering with a principled stance on ethical technology—he has publicly stepped away from platforms and projects that conflict with those values. His background spans testing and quality roles at Internet Archive, Conviva, and startups, giving him a pragmatic, security- and privacy-minded approach to infrastructure. Colleagues know him for insisting on inclusive, accountable teams and for favoring practical solutions that benefit marginalized users as much as code correctness.
13 years of coding experience
15 years of employment as a software developer