Johann Chang
Senior Firmware Engineer at Lumo
Taipei, Taiwan
Summary
👤
Senior🎓
Top SchoolJohann Chang is a seasoned senior firmware engineer based in Taipei with over four decades of hands-on experience building embedded systems, firmware, and developer tools. He combines strong low-level C and embedded expertise with modern systems programming in Go, Rust, Python and Java, plus deep familiarity with Git workflows and DevOps/sysadmin practices. Johann has led and managed embedded teams at multiple companies and contributed front-end improvements to popular open-source projects like a Material Design Hexo theme, demonstrating both UI sensibility and platform-level fluency. An algorithms enthusiast and Codeforces "expert," he brings rigorous problem-solving skills to complex firmware and system software challenges. He holds a master’s in computer science and a bachelor’s in electrical and electronics engineering, reflecting a rare blend of formal education and broad, practical engineering across desktop, CLI, and embedded domains.
41 years of coding experience
13 years of employment as a software developer
Bachelor’s Degree, Electrical and Electronics Engineering, Bachelor’s Degree, Electrical and Electronics Engineering at National Taiwan Ocean UniversityMaster’s Degree, Computer Science, Master’s Degree, Computer Science at National Central University
English, Chinese
Stackoverflow
1,331reputation
467kreached
23answers
5questions
Github Skills (19)
javascript10
hexo10
material-design10
html10
theme-development10
ejs10
css9
i18next8
i18n-js8
i18n-node8
multiprocessing6
android-studio6
android6
github6
python6
Programming languages (23)
Github contributions (5)
yscoder/hexo-theme-indigo
Apr 2017 - Apr 2017
一个Material Design风格的Hexo主题。 https://imys.net/ 备用:
Role in this project:
Front-end Developer
Front-end DeveloperContributions:5 commits, 5 PRs, 1 comment in 1 day
Contributions summary:Johann primarily focused on enhancing the Hexo theme's frontend components. They implemented features like togglable lightboxes for images and partial support for i18n, which improves the user experience and internationalization. Furthermore, the user made modifications to the footer and header, and other layouts, demonstrating a focus on improving the overall design and functionality of the theme. They also ensured the theme respected Hexo's feed configuration.
materialhexomaterial-designmaterialize
mrjohannchang/linkit-smart-7688-wifi-multi-role
May 2016 - Oct 2018
Contributions:11 commits, 14 pushes, 1 branch in 2 years 5 months
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