Rafał Kornel is a Senior Software Engineer based in Warsaw with eight years of full-stack experience, currently building cloud-integrated data pipelines and service integrations at PwC Polska. Self-taught initially and now studying computer science at Warsaw University of Technology, he combines strong frontend craft—maintaining legacy UIs, leading junior teams and CI/CD—with backend expertise in NestJS, Azure services and performance optimization. He has a track record of turning manual Excel imports into real-time event-driven integrations, introducing extensive test suites and cutting latency by an order of magnitude. An active open-source contributor, he improves reliability in reactive UI libraries through testing and refactoring, and brings unusual breadth from astronomy studies to game-development and AI curiosity.
8 years of coding experience
4 years of employment as a software developer
Engineer's degree, Computer Science, Engineer's degree, Computer Science at Warsaw University of Technology
Licencjat (Lic.), Astronomy, Licencjat (Lic.), Astronomy at Uniwersytet Warszawski
Contributions:2 reviews, 6 commits, 2 PRs in 1 day
Contributions summary:Rafał primarily focuses on testing and refactoring code related to the `arrow-js` library, which is a reactive UI library. Their commits involve removing duplicate tests, unifying test naming conventions, and extracting a test suite for `nextTick`. They've also added and fixed tests to improve the reliability and functionality of the library, including null support and addressing bugs.
Contributions:22 pushes, 2 branches in 4 years 1 month
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Rafał Kornel - Senior Software Engineer at PwC Polska