Hui Sun
Principal Data & Applied Scientist Manager
Bellevue, Washington, United States
Summary
👤
Senior🎓
Top SchoolHui Sun is a Principal Data & Applied Scientist Manager at Microsoft with nine years of experience applying machine learning and big data to fraud protection across eCommerce, gaming, payments, and retail. She has progressed from research in medical image segmentation (PhD Bioengineering, UPenn) to leading teams that build consortium ML models for Dynamic 365 Fraud Protection, protecting merchants at scale. Hui combines deep statistical and supervised-learning expertise with production ML deployment experience, owning systems that serve both Microsoft’s consumer storefronts and third-party merchants. Her background in medical image analysis and earlier work on 3D segmentation gives her a strong foundation in rigorous model validation and complex feature engineering. Known for translating research-level methods into robust, operational fraud defenses, she balances technical leadership with hands-on model development and mentorship. Based in Bellevue, WA, she blends academic rigor with product-focused delivery to reduce risk and friction across diverse commerce ecosystems.
9 years of coding experience
9 years of employment as a software developer
MS & BS Mechanical Engineering, MS & BS Mechanical Engineering at Fudan UniversityPhD Bioengineering , PhD Bioengineering at University of Pennsylvania
Github Skills (15)
openmmlab10
object-detection10
faster-rcnn10
benchmark10
vision-transformer10
toolbox10
instance-segmentation9
retinanet9
swin-transformer9
mask-rcnn9
transformer9
pytorch9
deep-learning8
glip8
hexo5
Programming languages (2)
Github contributions (5)
LoserSun/cs231n-study-schedule
Jun 2017 - Oct 2017
Contributions:52 commits, 50 pushes, 1 branch in 4 months
LoserSun/LoserSun.github.io
Mar 2017 - Jan 2018
Contributions:162 pushes, 1 branch in 10 months
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