Marek Kowalcze
Senior Ruby Developer at Smart Pension
Cracow Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolMarek Kowalcze is a Senior Ruby Developer with 12 years of hands-on experience building web applications and backend systems, currently driving core platform work at Smart Pension from Kraków. He has a strong Rails and Ruby background complemented by TypeScript and frontend experience (Angular, Redux/RxJS) from prior roles, enabling him to span full-stack responsibilities. Marek has built programmatic media-buying SaaS, ETL pipelines, and release tooling, and has experience integrating with APIs like YouTube and Adwords as well as working with Sidekiq, Redis, Postgres and MongoDB. He’s comfortable shipping automation and test suites (Selenium/Protractor) and mentoring junior engineers, reflecting both pragmatic engineering and team-focused delivery. With a master’s in IT and a decade-plus track record across startups and established firms, he blends production-grade craftsmanship with a knack for simplifying complex integrations.
12 years of coding experience
12 years of employment as a software developer
Master's degree, Information Technology, Master's degree, Information Technology at The Silesian University of TechnologyMaster's degree, IT, Master's degree, IT at Politechnika Śląska w Gliwicach
English, Polish
Github Skills (136)
ruby10
opal10
rubygems10
sanity10
phantomjs10
coercion10
tricks10
changelog10
mongoid10
mruby10
rad10
headless-browser9
formatter9
test-kitchen9
activeadmin9
Programming languages (6)
Github contributions (5)
kowal/ruby-changelog
Nov 2018 - Jan 2023
Ruby CHANGELOG
Contributions:90 commits, 2 PRs, 106 pushes in 4 years 3 months
changelogrubyruby-changelog
kowal/climate-watch
Jan 2018 - Sep 2020
Climate Watch: Data for Climate Action
Contributions:2 PRs, 1 push, 2 branches in 2 years 8 months
climate-actionclimate
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