Michał Szumnarski
Frontend Engineer at Bank Millennium
Pomeranian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolMichał Szumnarski is a Frontend Engineer with eight years of hands-on experience building user-facing systems using React, TypeScript and Node.js, currently delivering production-grade frontend solutions at Bank Millennium. He previously led internal tooling and automation projects at Unisystem, connecting ERP and e-commerce systems and creating productivity tools that reduced manual work across sales, HR and operations. Comfortable across the stack, Michał blends frontend craftsmanship with backend data work (MongoDB, PostgreSQL) and cloud integrations, and is often the “go-to” problem solver for tricky technical issues. His background spans marketing, project leadership and IT administration, giving him a pragmatic product-minded approach to engineering and stakeholder collaboration. Based in the Pomeranian Voivodeship, he combines formal CS study and intensive self-directed training (freeCodeCamp, Harvard coursework) with a history of shipping both bespoke enterprise systems and high-impact automation.
8 years of coding experience
2 years of employment as a software developer
Master of Engineering - MEng, Computer Sciences in Management, Master of Engineering - MEng, Computer Sciences in Management at Gdańsk University of TechnologyComputer Science, Computer Science at Harvard UniversityComputer Science, Full Stack Developer Course, Computer Science, Full Stack Developer Course at freeCodeCamp
English, Polish
Github Skills (23)
mongoose9
bem9
nodejs9
react9
redux8
javascript8
expressjs8
css7
sass7
codepen7
rest7
api7
mongodb7
rest-api7
frontend7
Programming languages (5)
Github contributions (5)
thembones79/lem-client
Jul 2020 - Feb 2026
GUI in ReactJS for LEM (Line Efficiency Monitoring) System
Contributions:3 releases, 40 reviews, 122 PRs in 5 years 7 months
monitoringreactbemfrontendgui
thembones79/unisystem
May 2018 - Dec 2019
Contributions:164 pushes, 1 branch in 1 year 7 months
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