Heiko Tietze
UX Mentor at Various Companies
Neuhaus am Rennweg, Thuringia, Germany
Summary
👤
Senior🎓
Top SchoolHeiko Tietze is a UX mentor and usability engineer with over 11 years of experience spanning open source, medical technology, finance, and automotive sectors. With a PhD in psychology, he combines rigorous human factors research and psychophysiological methods with practical product design, having led UX at Roche Diagnostics and contributed to ergonomics in defense and traffic-science research. As a long-time contributor and UX mentor for LibreOffice, he focuses on interface polish and feature-level improvements—everything from color palettes to animation sidebars—that materially improve user experience in a major open-source desktop suite. Heiko mentors teams and shapes usability processes across multiple companies, pairing hands-on UI changes with strategic guidance. Colleagues benefit from his rare mix of academic rigor and pragmatic engineering, and his work often reveals subtle UX improvements that reduce cognitive load in complex applications.
11 years of coding experience
13 years of employment as a software developer
PhD, Psychology, PhD, Psychology at Friedrich-Schiller-Universität Jena
English, German
Github Skills (7)
user-interface10
c-language10
libreoffice10
cprogramming-language10
graphical-user-interface10
human-interface10
ui-design8
Programming languages (7)
Github contributions (5)
LibreOffice/core
Oct 2016 - Jan 2023
Read-only LibreOffice core repo - no pull request (use gerrit instead https://gerrit.libreoffice.org/) - don't download zip, use https://dev-www.libreoffice.org/bundles/ instead
Role in this project:
Back-end Developer
Back-end DeveloperContributions:503 commits in 6 years 4 months
Contributions summary:Heiko primarily contributed to the LibreOffice core repository by addressing various issues related to the user interface and functionality of the software. Their work involved modifying code related to color customization in the NotesPane, field shading, and the integration of color palettes. They also worked on features related to bookmark display, handling of the TipOfTheDay dialog, and improvements to the animations sidebar. These changes demonstrate a focus on enhancing the user experience and improving the overall functionality of the LibreOffice suite.
libreofficedevzippull-requesttdf
Scrabble3D/4.0
Jun 2021 - Jan 2023
Contributions:26 commits, 60 pushes, 3 branches in 1 year 7 months
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