Summary
Joen Tolgraven is a Stockholm-based software engineer with 11 years of experience and a strong functional-programming focus, currently building a next-generation container OS in Clojure at Polytope while contributing backend work for energy market control systems. He blends full-stack fluency—Re-Frame/Reagent ClojureScript frontends, CLJ backends, JavaScript, Python and embedded C++—with a history of shipping production tooling for live broadcast and automation at TV4. A prolific maker of side projects and open-source contributions, Joen continuously evolves his craft by rebuilding his personal site from the ground up to exercise modern functional front-end patterns. His unusual combination of formal CS and musicology training, plus an engineering management master’s background, gives him both analytical rigor and a creative systems perspective.
11 years of coding experience
8 years of employment as a software developer
Master of Engineering - MEng, Engineering/Industrial Management, Master of Engineering - MEng, Engineering/Industrial Management at KTH Royal Institute of Technology
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Stockholm University
English, Swedish, Spanish