Mark Fasheh is a systems-focused software engineer with 11 years of experience building and optimizing low-level software—particularly Linux kernel file systems, clustering, and storage. He has driven core filesystem features and performance improvements at companies like SUSE, Oracle, Versity, Apple (GPU technology), and currently Google, applying lessons from large-scale cluster design to diverse hardware. His specialties include Btrfs/XFS development, OCFS2 maintenance, high-performance deduplication, and deep C/Linux kernel expertise. Recently he pivoted into GPU scheduling, demonstrating adaptability to radically different hardware while retaining a resource-efficiency mindset. Known for shipping production kernel features (fiemap, reflink, dedupe ioctl) and tooling such as duperemove, he combines systems design with practical engineering that scales to hundreds of billions of files. Based in Pleasanton, CA, he thrives on hard technical challenges and continuous learning across new platforms.
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