Summary
John Kehayias is a multidisciplinary free software consultant, educator, and recovering theoretical physicist with 11 years of professional experience spanning research, teaching, writing, and open-source development. He teaches critical writing at the University of Pennsylvania while consulting through Guixotic on GNU Guix and Guile Scheme, blending deep technical fluency with clear communication. His background includes postdoctoral research in particle physics and cosmology, published scholarship, and freelance journalism for outlets like Wired and Vice, reflecting an ability to translate complex science for diverse audiences. A long-time Lisp enthusiast and prolific open-source contributor, he pairs rigorous analytical training (PhD in Physics) with hands-on software craftsmanship and editorial sensibility. Notably, he runs small, seminar-style courses and provides extensive personalized feedback—an approach he brings to both pedagogy and community-driven software projects.
11 years of coding experience
University of California Santa Cruz
Bachelor of Arts - BA Physics and Mathematics, Bachelor of Arts - BA Physics and Mathematics at Columbia University