Crystal Koo
Senior Software Engineer at Microsoft
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolCrystal Koo is a Senior Software Engineer with 15 years of experience building cloud-backed applications and platform services at Microsoft, currently focused on Microsoft Managed Desktop. She has a strong background in UWP and C# from building Feedback Hub across Desktop, Mobile, HoloLens and Surface Hub, and later shifted to service-side Azure deployments and accessibility advocacy. Her open-source contributions to Reviewboard show practical backend expertise—improving search, quick-search UX, and robust user lookup/authentication in a widely used code-review tool. Prior internships at Amazon, DemonWare, and PDFTron reflect a breadth of experience from security dashboards in Ruby on Rails to Django web apps and QA. Based in Seattle, she combines deep product-driven engineering with attention to accessibility and secure, searchable developer workflows. Colleagues know her for shipping dependable backend features that make large-scale review and feedback systems noticeably more usable.
15 years of coding experience
4 years of employment as a software developer
Bachelor of Science (B.Sc.), Computer Science, Bachelor of Science (B.Sc.), Computer Science at The University of BirminghamScience, Computer Science, Science, Computer Science at The University of British Columbia
English, Chinese, Chinese, French, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (9)
api10
back-end-development10
python10
apidoc10
code-review10
django9
algorithm9
algorithms9
javascript8
Programming languages (1)
Github contributions (2)
reviewboard/reviewboard
Jan 2011 - Jan 2014
An extensible and friendly code review tool for projects and companies of all sizes.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits in 2 years 11 months
Contributions summary:Crystal primarily contributed to the back-end functionality of the code review tool. They made changes to the search feature, enabling searching by change number and implementing a quick search resource. They also fixed user lookup issues in API resources, specifically addressing the retrieval of user information within the system. The user's work demonstrates a focus on enhancing search capabilities and ensuring correct user authentication within the review process.
pythonjavascriptdeveloper-tools
crystalkoo66/crystalkoo66.github.io
Jun 2025 - Jun 2025
Contributions:2 pushes, 1 branch in 2 days
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