Dawid Kossowski
Software Engineer at CKSource
Lodz Metropolitan Area Poland
Summary
🤩
Rockstar🎓
Top SchoolDawid Kossowski is a software engineer with nine years of hands-on front-end and full-stack experience, currently contributing to CKSource on rich-text editing features. He has a strong JavaScript background demonstrated by meaningful contributions to the widely used CKEditor 5—fixing list ordering, block quote handling, and improving special characters documentation and styling. Dawid progressed from internships and junior frontend roles at HYCOM and MakoLab to a senior-facing engineering role at Hycom.digital and now CKSource, showing steady growth in complex browser-based UI work. Educated in computer science and e-business management, he blends technical depth with product-minded thinking. Pragmatic and detail-oriented, he often tackles edge-case bugs and documentation improvements that improve developer and end-user experience.
9 years of coding experience
5 years of employment as a software developer
Magister (Mgr), Zarządzanie (E-biznes), 4.5, Magister (Mgr), Zarządzanie (E-biznes), 4.5 at Społeczna Akademia NaukInżynier (Inż.), Computer Science, 5, Inżynier (Inż.), Computer Science, 5 at Politechnika Łódzka
English, Polish
Github Skills (3)
javascript10
html9
css8
Programming languages (4)
Github contributions (5)
ckeditor/ckeditor5
Sep 2022 - Jan 2023
Powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:162 reviews, 27 commits, 83 PRs in 4 months
Contributions summary:Dawid primarily focused on the CKEditor 5 project, contributing to the list and special characters features. Their work included bug fixes related to list ordering and the handling of block quotes within lists. Additionally, the user updated the special characters section in the user guide and added styles for lists. The user demonstrated proficiency in JavaScript and related testing frameworks, contributing significantly to the functionality and documentation of the rich text editor.
rich-textwysiwyg-editorlexicalrichtexttinymce
kossowski-203908/srorder
Feb 2018 - Apr 2018
Contributions:39 pushes, 1 branch in 2 months
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