Nolan O'brien
Software Engineer (no Titles) at Meta
Henderson, Nevada, United States
Summary
🤩
Rockstar🎓
Top SchoolNolan O'brien is a seasoned software engineer with 13 years of experience building high-performance client applications and media systems, currently working remotely from Henderson, Nevada. He led major image and performance initiatives at Twitter—driving multi-year efforts that improved media quality and performance by orders of magnitude and reduced data costs for users by up to 95%—and now contributes at Meta. Nolan's background spans iOS leadership roles (including head of iOS engineering and impactful work on the popular Twitter Image Pipeline open-source project) and cross-platform systems engineering from his Cisco and Pure Networks days. He combines hands-on coding in C++, Objective-C/Swift and system design with technical leadership, documentation, and program-level delivery across hundreds of engineers. Outside work he’s family-focused—a Canadian living in Las Vegas with a large family—bringing practical empathy to product decisions affecting billions of users.
13 years of coding experience
14 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at University of Washington
Github Skills (16)
deco10
objective-c10
encode10
ios10
image-decoder10
decode10
image-processing10
encoding10
decoder10
disk-cache9
web-cache9
object-cache9
memory-cache9
swift9
caching9
Programming languages (9)
Github contributions (5)
twitter/ios-twitter-image-pipeline
Feb 2017 - Oct 2020
Twitter Image Pipeline is a robust and performant image loading and caching framework for iOS clients
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:15 releases, 68 commits, 53 PRs in 3 years 8 months
Contributions summary:Nolan primarily contributed to the Twitter Image Pipeline framework, focusing on image decoding, encoding, and caching functionalities for iOS. Their work involved improvements to image codecs, including the addition of animated PNG support and updates to the WebP codec. Furthermore, the user fixed bugs, optimized the code, and added Swift sample code demonstrating the framework's usage.
pipelinecachingtwitter-imageimage-loadingswift
NSProgrammer/HLSMakerCLI
Aug 2013 - Jan 2016
Contributions:3 commits, 1 push in 2 years 5 months
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