About

About Me

Hi, I’m Haoyang Li (Liharr). I’m a software engineer based in Suzhou, China,
currently working at Microsoft on the Office AI Copilot.

I enjoy building infrastructure, working across the stack, and learning new things —
this site is where I write about them.

Experience

Microsoft — Software Engineer

Jul 2023 – Present · Suzhou, China

  • Office AI Copilot (Jan 2024 – Present)
  • ES365 Infrastructure (Jul 2023 – Dec 2023)
  • Tech: C#, .NET, TypeScript, Node.js

Qilin Investment — C++ Developer (Intern)

Nov 2022 – Mar 2023 · Shanghai (Remote)

  • Market data infrastructure development
  • Tech: C++

Microsoft — Software Engineer Intern

May 2022 – Aug 2022 · Suzhou, China

  • M365 Infrastructure — Signals Monitoring team
  • Tech: C#, back-end web development

Baidu, Inc. — R&D Intern

Jan 2020 – May 2020 · Beijing, China

  • Search Infra — Machine Learning Platform, full-stack development
  • Tech: PHP, back-end web development

Education

Beijing University of Posts and Telecommunications (BUPT)

M.S. in Computer Science · 2020 – 2023

Chongqing University of Posts and Telecommunications (CQUPT)

B.E. in Electrical, Electronics and Communications Engineering · 2016 – 2020

Skills

C# · .NET · TypeScript · Node.js · C++ · Back-End Web Development

Contact