Łukasz Holeczek
Founder & CEO at Brainhub
Poland
Summary
🤩
Rockstar🎓
Top SchoolŁukasz Holeczek is a founder and front-end engineering leader with 10+ years building high-impact open source UI libraries and admin templates used by millions worldwide. As Founder & CEO of CoreUI, he designs and maintains component libraries for Angular, React, and Vue, driving cross-framework consistency and Bootstrap 5 integration. He combines hands-on refactoring and component design—CSS variables, responsive sidebars, and accessibility-minded prop fixes—with product-level decisions born from running multiple startups. Łukasz also advises engineering teams as a strategic consultant at Brainhub, helping scale delivery and developer velocity. Notably, his work spans not just code but the ecosystem around it, from icon sets to documentation and build tooling, reflecting a pragmatic focus on developer experience.
10 years of coding experience
8 years of employment as a software developer
University of Silesia in KatowiceUniwersytet Śląski w Katowicach
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (33)
icon-pack10
javascript10
dashboard10
bootstrap10
admin10
angular-component10
ui-components10
font-manager10
css10
responsive-design10
typescript10
ui-design10
sc10
uid10
font-face10
Programming languages (8)
Github contributions (5)
coreui/coreui-free-bootstrap-admin-template
Aug 2016 - Jan 2023
Free Bootstrap Admin & Dashboard Template
Role in this project:
Front-end Developer
Front-end DeveloperContributions:31 releases, 527 commits, 29 PRs in 6 years 6 months
Contributions summary:Łukasz made several commits focused on improving the user interface and updating components. Contributions include incorporating 3D switches, refactoring the sidebar and adding new UI elements, along with implementing a color mode switch for the application. Moreover, the user worked on fixing responsiveness issues and upgrading Bootstrap's version.
bootstrap4templatebootstrap5admincss
coreui/coreui-vue
Sep 2020 - Jan 2023
Bootstrap 5 based Vue 3 components and directives. CoreUI for Vue.js replaces and extends the Bootstrap 5 javascript. Components have been built from scratch as true Vue 3 components.
Role in this project:Front-end Developer
Front-end DeveloperContributions:42 releases, 10 reviews, 362 commits in 2 years 4 months
Contributions summary:Łukasz focused on implementing and refactoring UI components for the CoreUI Vue.js library, which extends Bootstrap 5. Their work included updating exports for image components, adding and fixing prop types for various components such as CCol, CContainer, and CFormCheck, and refactoring the non-function value encountered for default slots. The user also added a new component for CFormFeedback and updated the documentation and structure of the component.
coreuibootstrap-5vuejavascript-componentsui-components
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