Marc Salem
Tech Lead, AI Devices at Meta
San Francisco Bay Area United States
Summary
🤩
Rockstar🎓
Top SchoolMarc Salem is a tech lead with 14 years of engineering experience, currently driving software for EMG-based Orion wristband wearables at Meta from the San Francisco Bay Area. He has led core platform and OS efforts across Meta’s AR/VR and Portal teams, blending low-level systems engineering with product-focused delivery. Early startup experience as Apportable’s first hire gave him deep cross-platform mobile expertise, including shipping Objective-C-to-Android tooling and audio lifecycle work in Cocos2d. His open-source contributions to projects like Facebook’s xcbuild show a penchant for performance-sensitive build and asset tooling, including optimizations for image formats and CAR file handling. Known for bridging device firmware, operating systems, and developer frameworks, he brings pragmatic architecture and hands-on implementation to hard embedded and mobile problems.
14 years of coding experience
21 years of employment as a software developer
UNSW Sydney
Github Skills (18)
objective-c10
c-language10
audio-processing10
audio10
fileio10
android10
file-processing10
file-handling10
file-access10
cprogramming-language10
image-processing9
java9
png9
javas9
libpng9
Programming languages (4)
Github contributions (5)
facebookarchive/xcbuild
May 2016 - Aug 2016
Xcode-compatible build tool.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:15 commits, 15 PRs, 21 pushes in 3 months
Contributions summary:Marc primarily focused on enhancing the `xcbuild` tool's capabilities for asset compilation and management. Their contributions include implementing support for JPEG/Raw image formats and slices within the Rendition class, which is crucial for handling different image types. They also optimized CAR file writing by pre-allocating BOM indexes and added support for reading and writing raw key-value pairs, thus improving the tool's performance. Furthermore, they improved the build process by addressing compiler warnings and adding support for multiple target devices.
xcode
cocos2d/cocos2d-objc
Jul 2014 - Sep 2014
Cocos2d for iOS and OS X, built using Objective-C
Role in this project:Mobile Developer (Android)
Mobile Developer (Android)Contributions:26 commits in 1 month
Contributions summary:Marc primarily contributed to the Android implementation of the Cocos2d-objc framework, focusing on the ObjectAL audio library. Their work included adding support for finite looping, implementing OALAudioFile for Android, and integrating suspend/resume functionality for audio tracks. These changes involved modifying Objective-C and Java code to manage audio playback, file handling, and lifecycle events within the Android environment.
cocos2d-xiosobjective-c
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