Hang Yuan
Technical Staff - Architecture at Illumio
San Jose, California, United States
Summary
👤
Senior🎓
Top SchoolHang Yuan is a Technical Staff engineer specializing in architecture with eight years of experience building high-scale Java backend microservices for large enterprises like Illumio and Walmart Global Tech. He combines deep backend expertise (Java, Spring Boot/Cloud, Kafka, Hibernate) with cloud-native deployment and observability practices across AWS, Azure, and Kubernetes, and has driven measurable improvements—such as 40% faster data transfer and 95% persistence-time reductions—through performance tuning and migration efforts. A Columbia MS graduate and former researcher on eSIM for IoT, he blends rigorous academic research with practical product delivery, having led cross-team data consolidation, event-driven designs, and privacy-compliant APIs. He’s also led engineering teams and set testing standards to raise code quality and coverage, pairing hands-on development with mentoring and product-focused decision making. Notably, his work on unifying List-as-a-Service across North America showcased both systems-level architecture and operational rigor in large-scale e-commerce environments.
8 years of coding experience
6 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Columbia UniversityUniversity of California Santa Cruz
English
Github Skills (4)
dkim3
client-server3
smtp2
http-client2
Programming languages (6)
Github contributions (5)
dorissssy/Mattricks
Nov 2022 - Dec 2022
Contributions:34 commits, 20 PRs, 30 pushes in 1 month
ucsc-caa/MMS-Web-BE
Nov 2020 - Jul 2021
Contributions:19 reviews, 8 PRs, 12 pushes in 8 months
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