Sergiu Dumitriu
Software Architect at University Health Network
Old Toronto, Ontario, Canada
Summary
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Rockstar🎓
Top SchoolSergiu Dumitriu is a Software Architect with 20 years of experience designing accessible, internationalized web applications and improving usability across complex systems. Based in Toronto, he blends hands-on full-stack work—HTML/CSS/JavaScript and XML—with back-end Java expertise, having contributed UI improvements to the XWiki platform and maintenance fixes to the Apache Velocity Engine. His career spans academic teaching, bioinformatics and clinical software at major Canadian health institutions, and leadership as Chief Architect in a startup, reflecting a rare mix of research, product, and systems integration experience. Known for pragmatic UI craftsmanship and attention to localization and PDF/export edge cases, he consistently improves user-facing polish while keeping code quality and performance in mind.
20 years of coding experience
12 years of employment as a software developer
MS, Distributed Systems (Computer Science), MS, Distributed Systems (Computer Science) at „Alexandru Ioan Cuza” University, Iași, Romania
Stackoverflow
11,543reputation
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191answers
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maven
top-5%
apache
top-5%
java
top-5%
javascript
top-5%
newline
top-5%
svg
top-1%
Github Skills (26)
javascript10
css10
java10
standard-library10
javas10
svg10
html10
velocity10
c-library10
common-library10
web-development10
apache9
maintenance9
ui-design9
newline9
Programming languages (10)
Github contributions (5)
xwiki/xwiki-platform
Aug 2005 - Mar 2019
The XWiki platform
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:8541 commits, 10 PRs, 74 pushes in 13 years 9 months
Contributions summary:Sergiu primarily contributed to the XWiki platform's web development, specifically in enhancing UI elements and implementing styles. They worked on UI improvements, particularly concerning the look and feel of the Colibri skin and also tackled issues related to the display of various UI elements in the PDF export. They also made minor code improvements and adjustments for better performance.
xwikitiddlywiki5phptiddlywiki
apache/velocity-engine
May 2013 - Feb 2017
Mirror of Apache Velocity Engine
Role in this project:Back-end Developer
Back-end DeveloperContributions:49 commits, 1 PR, 11 comments in 3 years 10 months
Contributions summary:Sergiu's commits primarily focus on fixing typos, improving code style, and upgrading dependencies within the Apache Velocity Engine. The code changes involve modifications to core Java files and related documentation. The user appears to be involved in code maintenance, dependency updates, and ensuring code quality, contributing to the overall stability and functionality of the Velocity Engine.
javavelocityapacheapache-velocity
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