Hongcheng Xu
Senior Software Engineer @Meta
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WORK HISTORY
Senior Software Engineer @Meta
Built an internal agent-driven experiment analysis system that automatically queries, ranks, and summarizes historical launch proposals, cutting manual analysis time and enabling faster, more consistent decision-making across teams- Designed and launched a client-to-server ad invalidation framework that filters already-invalid ads (e.g, app already installed) early in retrieval, delivering +0.1%-0.2% incremental Facebook ads revenue at scale- Led multiple ads retrieval infrastructure optimizations - including inactive ad filtering and storage redesign, that reduced CPU and storage usage by up to 98%, saving roughly $800K in annual compute cost while improving system efficiency
EDUCATION
University of Maryland
Doctor of Philosophy (PhD), Computational Biophysics
Nanjing Normal University
BS, Computational Biology/Biological Science
SKILLS
ABOUT HONGCHENG XU
Accelerates product launch in industrial application and scientific discovery for billions of users empowered by better infrastructure and data-driven decisions.Website: https://hcxu.meGoogle Scholar: https://github.com/collvey
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