Summary
Hao C is a pragmatic software engineer with nine years of experience building large-scale, performance-sensitive systems across cloud, gaming, and consumer SaaS products. He has shipped core services at Microsoft (OneNote APIs and real-time collaboration), led platform and infrastructure work at Airbnb as a Staff Engineer, and now contributes to production-grade systems at OpenAI. His background spans C++, C#, Python, Node.js and JavaScript, with notable work on high-throughput push notification and anti-cheating systems that handled millions of events and dramatically reduced fraud rates. Comfortable across backend, APIs, and real-time collaboration, he pairs deep systems thinking with a taste for interesting, challenging problems—and still describes himself playfully as an avid rhythm-game player who keeps honing his craft.
9 years of coding experience
12 years of employment as a software developer
Bachelor of Engineering (BEng) Computer Science, Bachelor of Engineering (BEng) Computer Science at South China Normal University
Hong Kong University of Science and Technology (HKUST)
English, Chinese