Marcel Mráz
Software Developer at Adacta
Czechia
Summary
🤩
Rockstar🎓
Top SchoolMarcel Mráz is a software developer with nine years of experience building web applications and front-end features, currently engineering at SentinelOne and based in Czechia. He has a strong front-end focus demonstrated by meaningful contributions to the popular excalidraw open-source project—improving canvas partitioning, text editing, and font handling to enhance the user experience. Marcel combines freelance work with a longstanding role at Adacta, showing adaptability across client projects and product teams. Academically grounded with degrees from Masaryk University and studies at the University of Ljubljana, he blends practical engineering with formal software-systems training. Colleagues describe him as detail-oriented in UI/UX refinements and comfortable shipping cross-cutting changes that bridge design and implementation.
9 years of coding experience
Bachelor's degree, Applied informatics, Bachelor's degree, Applied informatics at Masaryk University BrnoBachelor's degree, Computer Science, Bachelor's degree, Computer Science at University of Ljubljana, Faculty of Computer and Information Science
English, German, Polish, Czech
Stackoverflow
1reputation
635reached
0answers
1question
Github Skills (17)
javascript10
fonts10
typescript10
ui-design10
uid10
font-face10
front-end-development10
typescript-types10
typescripts10
react10
canvas9
whiteboard8
diagram8
database6
orm6
Programming languages (4)
Github contributions (5)
excalidraw/excalidraw
May 2021 - Apr 2025
Virtual whiteboard for sketching hand-drawn like diagrams
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 release, 159 reviews, 92 PRs in 3 years 11 months
Contributions summary:Marcel's commits primarily focus on enhancing the front-end of the excalidraw application. They implemented features such as partitioning the main canvas, fixing z-index inconsistencies, and refining text measurements. The user also contributed to the font-related features, including introducing a font picker and enabling multiple font fallbacks, and made improvements to the text editor. These changes enhance the user experience and functionality of the virtual whiteboard.
diagramsdrawnhand-drawnproductivitycollaboration
Mrazator/send-it-2.0
Dec 2017 - Jan 2018
Contributions:44 pushes, 2 comments, 2 issues in 1 month
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