Tomasz Kajtoch
Principal Software Engineer at SquareSky
Silesian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolTomasz Kajtoch is a Principal Software Engineer with over a decade of hands-on experience building full‑stack web applications and UI frameworks, currently contributing to Elastic’s Kibana and EUI projects. He blends startup founder grit (co‑founder of SquareSky and founder of HEXABYTE.IO) with enterprise engineering discipline from roles at Kong and Clevertech, shipping cross‑team upgrades and UI improvements at scale. Known for upgrading and hardening Elastic UI components—fixing tricky copy/edge‑case behaviors, modernizing tests, and adding responsive features—he brings deep front‑end expertise paired with system‑level awareness. Tomasz thrives on complex problems, continuous optimization, and mentoring teams through growth stages, while also pursuing travel and photography as creative outlets.
10 years of coding experience
6 years of employment as a software developer
Bachelor's degree Information Technology, Bachelor's degree Information Technology at Uniwersytet Ekonomiczny w KatowicachTechnik Informatyk Information Technology, Technik Informatyk Information Technology at Zespół Szkół Technicznych w Rybniku
Polish, English
Stackoverflow
11reputation
7kreached
1answer
0questions
Github Skills (20)
javascript10
component-development10
eui10
typescript10
system-design10
carbon-design-system10
system10
front-end-development10
sys10
typescript-types10
typescripts10
react10
debug9
css-in-js9
testing8
Programming languages (7)
Github contributions (5)
elastic/eui
Feb 2023 - Apr 2025
Elastic UI Framework 🙌
Role in this project:
Front-end Developer
Front-end DeveloperContributions:16 releases, 463 reviews, 198 PRs in 2 years 1 month
Contributions summary:Tomasz primarily focused on fixing and improving the `EuiCodeBlock` component, addressing issues with the copy button functionality and empty line handling. They updated and added test cases for the `EuiDualRange` component, and converted several unit tests to RTL. Further contributions included converting enzyme render tests to RTL for other components, and adding documentation updates, demonstrating a consistent focus on UI development and testing within the EUI framework.
reactsasseuiui-frameworkelastic
elastic/kibana
May 2023 - Apr 2025
Your window into the Elastic Stack
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:31 reviews, 54 PRs, 23 pushes in 1 year 11 months
Contributions summary:Tomasz primarily contributed to upgrading the EUI (Elastic UI) components within the Kibana repository. Their work involved updating EUI versions, addressing bug fixes, and integrating new features such as new glyphs and responsive styles. The user modified code across multiple areas, including front-end components, test files, and license configurations, demonstrating a broad understanding of the project's codebase. These upgrades and fixes likely improve the user experience and maintainability of the Kibana application.
elasticdashboardskibanaobservabilitywindow
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