Zhelun W
Senior Machine Learning Engineer at Atlassian
Vancouver, British Columbia, Canada
Summary
👤
Senior🎓
Top SchoolZhelun W is a Senior Machine Learning Engineer with 8 years of hands-on ML experience and a 15-year technology career arc, specializing in applied LLMs, recommendation systems, forecasting, and monetization-driven optimization. He has led end-to-end, production-grade ML initiatives at Apple, Alibaba, Talent.com and now Atlassian—building LLM-powered chatbots, retrieval pipelines, federated learning frameworks that scaled to 100M+ classes, and high-ROI monetization systems for global job platforms. Zhelun excels at translating ambiguous product goals into measurable, deployable systems that drive business impact, from reducing support load with conversational analytics to maximizing ad and email engagement. He is particularly drawn to merchant-centric products and platform-level thinking, blending research-grade methods with pragmatic engineering for scalable, privacy-aware deployments. Based in Vancouver, he pairs top-tier academic training from Tsinghua and Princeton with a proven track record of shipping ML that matters.
15 years of coding experience
8 years of employment as a software developer
Bachelor of Engineering Computer Science Honors, Bachelor of Engineering Computer Science Honors at Tsinghua UniversityMaster of Engineering Computer Science, Master of Engineering Computer Science at Princeton University
Chinese, Chinese, English
Github Skills (107)
datetime10
ui-components10
language-design10
javascript10
react-components10
api10
datepicker10
date-formatting10
json10
typescript10
amd10
momentjs10
commonjs10
splitting10
css-modules10
Programming languages (6)
Github contributions (5)
allenm/css-auto-reload
Feb 2012 - Aug 2014
Contributions:29 commits in 2 years 6 months
browsercss-filesreloadcssjavascript
allenm/js-framework-performance-compare
Feb 2017 - Nov 2020
Contributions:1 push, 1 branch, 1 tag in 3 years 9 months
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