Eric Czarny
Engineering Manager at Meta
New York City Metropolitan Area United States
Summary
🤩
Rockstar🎓
Top SchoolEric Czarny is an engineering manager with 18 years of experience designing scalable backend systems and mobile product infrastructure, currently leading teams at Meta to improve maintainability and developer velocity for Facebook’s iOS apps. He brings deep hands-on expertise in microservice architectures, cloud migrations (AWS), and developer tooling from prior roles at Gilt.com and RSA, with a track record of shipping infrastructure that supports high-traffic mobile experiences. At Meta he has driven performance work (e.g., reducing frame drops), contributed to ComponentKit—Facebook’s React-inspired iOS UI framework used broadly across the app—and helped build instrumentation and data pipelines that keep billions of users’ experiences snappy. He focuses on coaching engineers and creating environments where teams iterate quickly without sacrificing quality, blending technical leadership with career mentorship. Outside work he contributes to open source projects like ComponentKit and Spectacle, demonstrating attention to UI performance and accessibility that complements his backend and infrastructure strengths.
18 years of coding experience
11 years of employment as a software developer
Bachelor's Degree, Computer Science, Bachelor's Degree, Computer Science at Stonehill College
English
Github Skills (11)
objective-c10
web-framework10
macos10
ios10
component-kit10
user-interface10
keyboard-shortcuts10
shortcuts10
cocoa10
accessibility9
unit-testing8
Programming languages (8)
Github contributions (5)
eczarny/spectacle
Jul 2010 - Jan 2022
Spectacle allows you to organize your windows without using a mouse.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:1 release, 598 commits, 49 PRs in 11 years 8 months
Contributions summary:Eric implemented features and resolved bugs, enhancing the user experience of the Spectacle application. They modified the helper application and preference pane. Furthermore, the user's work focused on accessibility by improving the handling of sheets and normalizing the coordinates. They also added shortcut functionality and improved the overall design.
windowselectronorganizemousespectacle
facebook/componentkit
Jul 2015 - Jul 2018
A React-inspired view framework for iOS.
Role in this project:iOS Mobile Developer
iOS Mobile DeveloperContributions:237 commits, 172 PRs, 96 pushes in 3 years
Contributions summary:Eric contributed significantly to the iOS framework, ComponentKit, by making improvements to component layout and lifecycle management. Their work included facilitating the inclusion of additional information during layout, exposing the current component layout associated with lifecycle managers, and removing main thread affinity requirements in a data source controller. The user addressed local variable shadowing issues and removed tests that asserted on thrown exceptions and unused code, improving the code's clarity and robustness.
react-nativereactios
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