Karol Parfienczyk
Software Engineer at Knowit
Bialystok Metropolitan Area Poland
Summary
👤
Senior🎓
Top SchoolKarol Parfienczyk is a seasoned software engineer with over a decade building web and mobile applications, currently contributing at Knowit from Bialystok, Poland. He specializes in React, TypeScript, GraphQL and Node.js, with a track record of shipping internal real-time front-end apps, React Native projects and back-end GraphQL services for clients like Virgin Trains and Block Renovation. Comfortable across the stack, he combines component-driven front-end design, test-focused development (Jest) and cloud-integrated GraphQL (AWS AppSync) to deliver reliable user-facing systems. His early background in PHP/Symfony and Zend gives him strong server-side and database foundations that inform pragmatic architecture decisions today. Colleagues value his emphasis on code quality and reusable component design, and he has repeatedly taken ownership of complex internal tooling and platform features.
11 years of coding experience
12 years of employment as a software developer
Master of since, Computers, IT, Master of since, Computers, IT at Politechnika Białostocka
Polish, English
Github Skills (4)
home-automation1
home-assistant-integration1
hikvision1
home-assistant1
Programming languages (1)
Github contributions (5)
parfienczyk/magento-gulp-sass
Apr 2015 - Jan 2017
Contributions:24 commits, 18 pushes, 3 branches in 1 year 9 months
IntiveJsHooligans/memorable
Jan 2018 - Mar 2018
Contributions:8 PRs, 12 pushes, 5 branches in 1 month
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