Boris Petrenko
Staff Fullstack Engineer at SentinelOne
Bratislava, Region of Bratislava, Slovakia
Summary
🤩
Rockstar🎓
Top SchoolBoris Petrenko is a Staff Fullstack Engineer with 11 years of experience building end-to-end web applications and leading engineering work across fast-moving fintech and travel teams. Currently at SentinelOne after senior roles at Qonto and a multi-year tenure at Kiwi.com, he blends hands-on front-end development with system-level thinking and delivery leadership. He has contributed to open-source UI tooling, notably improving React components and accessibility in Kiwi.com’s Orbit design system while optimizing bundle sizes and build processes. Comfortable across the stack, Boris pairs strong engineering craft—adding tooling like Prettier and Flow—with a pragmatic focus on performance and developer experience. Based in Bratislava, he pairs technical rigor with practical instincts (he literally hoists steel and brews great coffee), bringing steady energy to complex, user-facing systems.
11 years of coding experience
11 years of employment as a software developer
Mathematics and Computer Science, Mathematics and Computer Science at Gymnasium Česká 10Master's degree Information Technology Project Management, Master's degree Information Technology Project Management at Masaryk University Brno, Faculty of Social Studies
English, Slovak
Stackoverflow
482reputation
19kreached
7answers
14questions
Github Skills (22)
javascript10
react-components10
styled-components10
system-design10
carbon-design-system10
react-component10
component-kit10
sys10
react10
flow-control9
work-flow9
control-flow9
flowtype9
prettify8
pretier8
Programming languages (14)
Github contributions (5)
kiwicom/orbit
Oct 2017 - Feb 2019
React components of open-source Orbit design system by Kiwi.com
Role in this project:
Front-end Developer
Front-end DeveloperContributions:143 reviews, 30 commits, 41 PRs in 1 year 4 months
Contributions summary:Boris primarily contributed to the Orbit design system by modifying and improving React components. Their work included adding Prettier for code formatting, incorporating Flow for type checking, and updating icon imports to reduce bundle sizes. The user also made changes related to build and testing processes, demonstrating involvement in the project's overall development workflow. Furthermore, the user appears to be working on accessibility improvements.
reactkiwicomorbitstyled-componentsdesign-system
oreqizer/reactizer-api
May 2016 - Nov 2020
(UNMAINTAINED) Backend of React's best boilerplate! :smiling_imp:
Contributions:19 PRs, 73 pushes, 5 branches in 4 years 6 months
reactboilerplatejestexpressbackend
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