Stefan Du Fresne
Principal Software Engineer at OVO
Epping Forest, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolStefan Du Fresne is a Principal Software Engineer with nearly two decades of software experience and over a decade in senior engineering roles, currently shaping technical direction at OVO on Zero Carbon Living and core services. He blends hands-on backend performance work—such as improving PouchDB’s indexing and adapter performance—with team leadership and engineering management across healthcare, green energy and global human development projects. Stefan has led small teams supporting high-scale, constrained systems (tens of thousands of users across 16 countries) and has practical experience modernising legacy registries and building analytics platforms. An active open-source contributor, he’s implemented real-world integrations like Twitch and Habitica plugins and improved voice-command tooling for Talon, showing a knack for pragmatic UX-focused engineering. Based in Epping Forest, he prioritises ethical, planet-forward software and brings both systems-level thinking and detailed implementation skill to complex product problems.
11 years of coding experience
18 years of employment as a software developer
BSc Computer Science, BSc Computer Science at University of Auckland
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Github Skills (38)
couchdb10
javascript10
python10
plugin-development10
streamlink10
databases10
bitbar10
tal10
pouchdb10
integer10
indexeddb10
nodejs10
twitch-api10
database10
testing9
Programming languages (19)
Github contributions (5)
matryer/xbar-plugins
Feb 2016 - Jun 2019
Plugin repository for xbar (the BitBar reboot)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:16 commits, 11 PRs, 12 comments in 3 years 4 months
Contributions summary:Stefan primarily contributed to the development of a BitBar plugin repository, specifically focusing on plugins for displaying information from various web services. The user created a plugin to display live Twitch streamers, including features for opening streams and chats, and integrated with the streamlink tool. They also worked on a plugin for Habitica, enabling task management and display capabilities. Code changes involved implementing features, fixing bugs, and improving the overall user experience.
xbarpluginbitbarpluginsplugin-repository
talonhub/community
Jul 2021 - Feb 2022
Voice command set for Talon, community-supported.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:7 reviews, 21 commits, 13 PRs in 6 months
Contributions summary:Stefan primarily contributes to the Talon voice command set. Their work includes adding functionality to override media play/pause controls for Windows and extending the functionality of the git commands. They also added support for tap functionality, skipping occurrences, and simple plural support, with several edits to the code and relevant .talon files. Further work included refactoring the desktop commands, adding new applications to the list, and updating several of the commands.
talontalonvoicevimwindowsin-progress
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