Hillary Mutisya
Principal Software Engineer, AI Systems at Microsoft
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolHillary Mutisya is a Principal Software Engineer specializing in AI systems, based in Seattle, with a long-tenured career at Microsoft shaping high-traffic, low-latency services and cross-device application platforms. She has led teams that powered news and app ecosystems across Edge, Bing, MSN, Xbox, HoloLens and experimental Surface devices, blending product-facing engineering with ML integrations from Microsoft Research. Her work spans building scalable ingestion and onboarding pipelines that processed millions of articles to designing universal app installers and performance tooling used across Windows form factors. Known for moving research models into production, she pairs deep systems and platform experience with a knack for cross-team collaboration and measurable reliability improvements. A Harvard-trained applied mathematician and computer scientist, she holds several patents tied to cloud deployment and platform infrastructure. Despite a focus on large-scale systems, she retains maker instincts from early product engineering—authoring deployment infrastructure that evolved into parts of the Azure SDK.
2 years of coding experience
17 years of employment as a software developer
High School Diploma, High School Diploma at Nguviu Boys' High SchoolBachelor's degree Applied Mathematics and Computer Science, Bachelor's degree Applied Mathematics and Computer Science at Harvard University
Github Skills (2)
ai9
llm9
Programming languages (1)
Github contributions (4)
hillary-mutisya/TypeAgent
Sep 2024 - Apr 2025
Sample code that explores an architecture for using TypeChat to build a personal agent that can work with application agents.
Contributions:182 pushes, 173 branches in 6 months
hillary-mutisya/TypeChat
Jul 2024 - Jan 2025
TypeChat is a library that makes it easy to build natural language interfaces using types.
Contributions:10 pushes, 2 branches in 5 months
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