Peter Willsey
Principal Software Engineer at Microsoft
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolPeter Willsey is a Principal Software Engineer with 12 years of experience specializing in iOS development for iPhone and iPad, currently contributing to Yammer and Microsoft in the San Francisco Bay Area. He combines deep expertise in Swift and Objective-C with strong foundations in Core Data, unit testing, and continuous integration to deliver robust mobile experiences. His background spans backend and scripting technologies—Perl, Java, MySQL, Python/Pylons—and includes hands-on server administration on Linux and OS X, giving him a full-stack perspective on shipping mobile products. He has a proven track record of moving between startup and enterprise contexts, from building mobile apps at UsedEverywhere to scaling at Yammer/Microsoft. Known for pragmatic engineering, he often bridges gaps between mobile clients and backend services to improve reliability and developer velocity. Trained in Computer Science at the University of Victoria, he brings steady, practical problem-solving and a quiet breadth of tooling expertise not always visible from app-facing work alone.
12 years of coding experience
8 years of employment as a software developer
BSc Computer Science, BSc Computer Science at University of Victoria
Stackoverflow
1,098reputation
197kreached
41answers
9questions
Github Skills (61)
objective-c10
ios10
progress-view10
xcode10
carthage10
swift10
macos10
hud10
cocoapods10
circular-progress10
overlay9
progress-hud9
forecast9
tvos8
svprogresshud8
Programming languages (3)
Github contributions (5)
yammer/ios-yammer-sdk
May 2015 - Feb 2016
Contributions:3 releases, 56 commits, 22 PRs in 9 months
ios-sdksdkswiftiosyammer
yammer/YMSwipeTableViewCell
Sep 2015 - Oct 2017
Contributions:2 releases, 5 commits, 3 PRs in 2 years
table-viewiosswiping
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