Stefan Mai
Explorer at Hello Interview
Kirkland, Washington, United States
Summary
👤
SeniorStefan Mai is an experienced software leader and founder with 14 years designing and shipping machine learning-driven products and scalable web systems. He has led large teams at Meta to build ML systems addressing critical harms and earlier drove forecasting and marketing systems at Amazon as a founding engineer. Stefan co-founded and exited multiple startups, including a Figma-rendering tool and a computer-vision social intelligence product with tens of thousands of users, and contributes to open-source front-end projects such as a popular YNAB browser extension. He blends hands-on engineering—frontend UX work, performance fixes, timezone quirks—with org-level leadership and coaching, and now builds AI-based interview training at Hello Interview. Based in Kirkland, WA, he mentors engineers, enjoys tough algorithm problems and vim, and quips that he’s “older than all dogs,” signaling a mix of humility and wit.
14 years of coding experience
15 years of employment as a software developer
Stackoverflow
23,655reputation
4.0mreached
128answers
29questions
mysql
top-5%
sql
top-5%
tooltip
top-1%
makefile
top-5%
cron
top-5%
concatenation
top-5%
Github Skills (23)
javascript10
firefox-webextension10
browser-extension10
css10
std10
firefox-addon10
chrome-extension10
tooltip10
google-chrome-extension10
webextension10
mysql9
cron9
makefile9
concatenation9
sql9
Programming languages (6)
Github contributions (5)
toolkit-for-ynab/toolkit-for-ynab
Jan 2016 - Jan 2016
A general purpose YNAB enhancing browser extension for Chrome and Firefox. Have it your way!
Role in this project:
Front-end Developer
Front-end DeveloperContributions:23 commits, 10 PRs, 42 comments in 13 days
Contributions summary:Stefan primarily focused on enhancing the user interface and functionality of the YNAB browser extension. Their contributions involved adding a "pacing" feature to the budget view, incorporating styling elements for visual feedback, and enabling users to selectively hide or emphasize budget categories. They also addressed bug fixes, performance improvements, and timezone issues.
firefoxbrowserynabenhancingchrome
iamnafets/taskwarrior_depends
Sep 2011 - Jan 2016
Contributions:6 commits, 1 PR, 1 push in 4 years 4 months
treesdependency-treestaskwarrior
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