Ondřej Žára
Javascript Developer & Webmaster at Seznam.cz
Prague, Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolOndřej Žára is a seasoned JavaScript developer and webmaster based in Prague with 18 years of experience building interactive web applications and working with modern web technologies like XML/XSLT, RDF/SPARQL, and advanced JS. At Seznam.cz since 2007 he has combined front-end craftsmanship with deep data and database skills (MySQL, PostgreSQL, MSSQL, Virtuoso) to deliver production-grade features and integrations. He contributes to well-known open-source projects such as rot.js (a popular roguelike toolkit) and wwwsqldesigner, improving UI/UX, schedulers and map generators—demonstrating full-stack fluency. Comfortable with OS administration on Windows and Linux, Ondřej pairs hands-on system knowledge with strong JS architecture expertise. His academic background in numerical mathematics informs a methodical, data-minded approach to problem solving.
18 years of coding experience
5 years of employment as a software developer
Gymnázium Nad AlejíMS, Numerical mathematics, MS, Numerical mathematics at Univerzita Karlova v Praze
Github Skills (16)
algorithm10
html10
css10
data-structures10
algorithms10
html5-canvas10
javascript10
engine10
canvas2d10
canvasjs10
game-engine10
webapp10
data-structure10
canvas10
localstorage9
Programming languages (19)
Github contributions (5)
ondras/wwwsqldesigner
Jun 2012 - Oct 2022
WWW SQL Designer, your online SQL diagramming tool
Role in this project:
Front-end Developer
Front-end DeveloperContributions:85 commits, 39 PRs, 64 pushes in 10 years 5 months
Contributions summary:Ondřej primarily contributed to the front-end aspects of the WWW SQL Designer project. Their commits focused on enhancing the user interface, including adding and modifying HTML elements, styling with CSS, and implementing features like local storage for saving and loading designs. Additionally, the user addressed bugs and improved the application's accessibility by removing user-select properties. These changes improved the overall user experience.
database-designweb-appsqldesignerdiagramming
ondras/rot.js
May 2012 - Jan 2023
ROguelike Toolkit in JavaScript. Cool dungeon-related stuff, interactive manual, documentation, tests!
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:354 commits, 58 PRs, 168 pushes in 10 years 9 months
Contributions summary:Ondřej primarily worked on improving the core functionality of the roguelike game engine "rot.js." They implemented features such as event queue scheduling, color modifications within the display module, and hexagonal grid-based layouts. The contributions involved both front-end display enhancements and back-end scheduler/map improvements, including the implementation of a cellular automata map generator.
javascriptdungeonmanualroguelike
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