Orr Sella
Software Engineer at Meta
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolOrr Sella is a software engineer with 13 years of experience building developer infrastructure, distributed systems, and highly available back-end services, currently working on developer tools at Meta in San Francisco. He combines a strong TDD discipline with practical expertise in RPC frameworks, cluster schedulers, and build/deployment tooling—evidenced by notable contributions to Facebook’s Buck remote execution APIs and Android UI framework Litho. Orr’s background spans startups and scale-ups, from founding a product company to backend roles at Wix and long-running infrastructure work at Meta, giving him both product instincts and deep systems chops. He holds a BSc in Physics & Economics from Tel Aviv University and brings an uncommon blend of low-level protocol work and UI engineering across open-source projects.
13 years of coding experience
10 years of employment as a software developer
Bachelor of Science, Physics & Economics, Bachelor of Science, Physics & Economics at Tel Aviv University
Stackoverflow
307reputation
12kreached
0answers
3questions
Github Skills (16)
litho10
javas10
remote-execution10
api10
thrift10
android10
apidoc10
java10
ui-components10
build-tools9
oop6
sbt6
cyclic-dependency6
inheritance6
dependency-injection6
Programming languages (10)
Github contributions (5)
facebook/buck
Jan 2016 - Aug 2018
A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 2 PRs, 1 comment in 2 years 7 months
Contributions summary:Orr primarily contributed to the project by implementing and syncing remote execution APIs. Their work involved adding and updating Thrift-based remote execution bindings and implementations. They were also responsible for migrating the remote execution API from Apache Thrift to Facebook Thrift, and adapting to the Bazel remote execution API v2. This work included changes to the underlying API and protocol definitions.
build-systembuild-tooljavapythonandroid
facebook/litho
Mar 2017 - Mar 2017
A declarative framework for building efficient UIs on Android.
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:7 commits in 1 day
Contributions summary:Orr appears to have focused on modifying and extending the Android UI framework, Litho. Their commits center around the implementation of `viewTag` functionality within the `ComponentHost`, `InternalNode`, and `MountState` classes. They are adding methods to set and get view tags as well as integrating the `viewTag` within the mounting process and component layout, suggesting a focus on UI element management and potentially related debugging or accessibility features. The commits' code changes touch core Litho framework components.
android
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.