Alex Kotliarskyi
Founder at Facebook
Seattle, Washington, United States
Summary
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RockstarAlex Kotliarskyi is a seasoned software engineer and founder with roughly 15 years of professional experience and nearly 20 years of hands-on coding, currently splitting his time between OpenAI and his deep-tech startup Secta AI Labs. He has driven product and engineering from prototypes to revenue—growing Secta to over $1M in under a year—while building ML infrastructure, UX, and full-stack systems end-to-end. A core contributor to React Native’s ecosystem (Metro bundler, CLI, and iOS tooling) and former leader at Facebook/Instagram/Oculus and Replit, he combines platform-level engineering with a relentless focus on developer experience. He holds patents for reinventing TLS over BLE and a multiplayer debugger protocol, reflecting an appetite for low-level networking and collaborative tooling as well as product-level polish. Colleagues describe him as both obsessively detail-oriented and scrappily fast—an unusual blend that shows up in shipped developer tooling, mobile apps, and scalable experimental ML systems. Based in Seattle and trained as a computer scientist, he thrives at the intersection of UX, distributed systems, and rapid product iteration.
15 years of coding experience
Github Skills (65)
atom-editor10
mobile-development10
python10
testing10
curses10
bundler10
jsx10
javascript10
uid10
front-end-development10
compiler10
cli10
test-automation10
babel610
debugging10
Programming languages (19)
Github contributions (5)
fbsamples/f8app
Mar 2016 - Apr 2018
Source code of the official F8 app of 2017, powered by React Native and other Facebook open source projects.
Role in this project:
Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:17 commits, 14 PRs, 20 pushes in 2 years 1 month
Contributions summary:Alex primarily contributed to the F8 app, focusing on bug fixes and upgrades within the React Native environment. They addressed issues like sharing crashes related to missing configurations and linting problems. They also upgraded the React Native version and made various code changes across multiple files, including the core application, which suggests familiarity with the app's structure and maintenance.
reactreact-nativejavascriptfirebasefacebook
facebook/react-native
Jan 2015 - Feb 2018
A framework for building native applications using React
Role in this project:Mobile Developer (iOS)
Mobile Developer (iOS)Contributions:1 release, 263 commits, 122 PRs in 3 years 1 month
Contributions summary:Alex contributed primarily to the iOS platform of the React Native framework, focusing on fixing issues related to the debugging tools and the development menu. The user added support for loading source maps from sourceMappingURL and improved the stack trace formatting within the RedBox. Additionally, this user was responsible for integrating a development menu directly into the RootView and adding features such as an "Open file" button to improve the debugging and development experience.
reactnative-applicationsmobile-developmentreact-nativeandroid
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