Brian Day
Principal Product Manager at Microsoft
Boston, Massachusetts, United States
Summary
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SeniorBrian Day is a Principal Product Manager at Microsoft with nine years in product and program roles and over two decades of hands-on systems experience, specializing in turning enterprise customer feedback into high-impact product roadmaps. He currently leads customer and partner engagement for WorkIQ, bridging real-world workflows with engineering priorities to drive adoption and usability at scale. His background includes deep technical program work across Microsoft 365 sovereign cloud, data residency, and complex enterprise deployments, giving him a rare blend of field-facing credibility and product execution chops. Brian excels at navigating political and technical complexity—working with CIOs, engineering teams, and partners to deliver secure, compliant, and practical solutions. He’s passionate about creating tight feedback loops that translate usability challenges into prioritized investments, and he thrives where strategic thinking meets pragmatic delivery. Based in Boston, he brings a practitioner’s perspective from early Exchange engineering and state-level IT operations to contemporary cloud product strategy.
9 years of coding experience
14 years of employment as a software developer
Github Skills (18)
microsoft10
microsoft-azure10
microsoft-graph10
azure10
exchange-server9
exchange-online9
openxml9
react9
powershell9
typescript8
powershell-sdk6
exchange6
docker-container5
sdk5
graph5
Programming languages (6)
Github contributions (5)
briandaymsft/OfficeDocs-Enterprise
Aug 2018 - Oct 2023
Documentation for Office 365 Enterprise features
Contributions:6 pushes, 1 branch in 5 years 3 months
for-officeoffice-365enterprise
briandaymsft/microsoft-365-docs
Sep 2020 - May 2022
This repo is used to host the source for the Microsoft 365 documentation on https://docs.microsoft.com.
Contributions:6 pushes, 2 branches in 1 year 8 months
hostmicrosoft-365office365microsoftmicrosoft-docs
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