Teemu Kalvas
Software Architect at HSL Helsingin seudun liikenne
Helsinki Metropolitan Area Finland
Summary
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Rockstar🎓
Top SchoolTeemu Kalvas is a software architect with two decades of professional development experience and a track record of moving between low-level systems work and full-stack product delivery. Currently shaping transit software at HSL after leading backend, frontend and data work at Montel Intergalactic, he combines hands-on coding in languages from C++ and Clojure to Python and JavaScript with architecture and team leadership. His background includes language implementation and garbage-collection research (including work touching SBCL), database and data-architecture projects, and embedded/security components from consultancy work. Comfortable in microservices on AWS as well as relational and graph databases, he is adept at rescuing legacy systems and modernizing them for production. Based in Helsinki and Cambridge-educated in Computer Science, he brings both deep technical breadth and a habit of digging into obscure implementation details when it matters.
7 years of coding experience
26 years of employment as a software developer
Bachelor of Arts - BA, Computer Science, Bachelor of Arts - BA, Computer Science at University of Cambridge
Github Skills (6)
gwt10
java10
react7
typescript6
opentripplanner5
docker3
Programming languages (2)
Github contributions (5)
tkalvas/date
Sep 2020 - Mar 2025
Contributions:6 pushes, 1 branch in 4 years 7 months
tkalvas/lisp500
Jan 2019 - Jan 2019
Contributions:14 commits, 12 pushes, 1 branch in 2 days
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