Ernest Ma
Staff Software Engineer at Pinterest
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolErnest Ma is a Staff Software Engineer based in New York with seven years of hands-on experience building high-performance mobile and core product features, primarily at Pinterest. He has led cross-functional initiatives across curation, boards, creator incentives, and app performance—driving measurable UX gains through instrumentation, regression detection, and architecture improvements. Comfortable across iOS, Unity, and backend tooling, he has a track record of adopting new technologies (e.g., HTTP/2 image downloading) and creating automated health checks and analytics pipelines to prevent regressions. Prior roles include founding engineering work on a children’s finance app and leading mobile teams at Location Labs, where he influenced architecture, hiring, and platform migrations. A UC Berkeley EECS graduate, Ernest blends product-minded engineering with mentorship and operational rigor to ship reliable, scalable features at consumer scale.
7 years of coding experience
13 years of employment as a software developer
Bachelor of Science, Electrical Engineering and Computer Science, Bachelor of Science, Electrical Engineering and Computer Science at University of California, BerkeleyElectrical Engineering, Electrical Engineering at De Anza College
English, Chinese
Github Skills (30)
asynchronous10
async10
image10
rendering10
fetcher10
sdwebimage10
pinterest10
asyncdisplaykit10
webp10
texture10
thread10
uikit10
smooth10
ios9
objective-c9
Programming languages (2)
Github contributions (5)
ernestmama/PINRemoteImage
Sep 2018 - Jan 2020
A thread safe, performant, feature rich image fetcher
Contributions:6 pushes, 3 branches in 1 year 4 months
imagefeature-richthreadperformantsafe
ernestmama/Texture
Sep 2018 - Sep 2018
Smooth asynchronous user interfaces for iOS apps.
Contributions:5 pushes, 2 branches in 3 days
asynchronoususer-interfacesswiftiosasync
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