David Q

AI Infra @ Meta, ex-Airbnb, FB, uWaterloo

New York, New York, United States

About

Tech Lead with 8+ years of experience in ML and AI Infra. * Built the first GPU retrieval inference and serving systems for FB Marketplace and Dating. * Distributed inference and training in extra-large Foundation Models.

Experience

  • Meta (On-site)
    • AI Infra (Inference)
      Jan 2026 - Present · 6 mos

      Inference Efficiency for Foundation models. Over $6M+ saved in Q1 2026.

    • Tech Lead in ML Infra, Recsys
      Sep 2019 - Dec 2025 · 6 yrs 4 mos

      Led a workstream of 10+ eng to build the first GPU-based retrieval system for FB Marketplace and Dating, increasing product DAU by 0.2%+.

  • Co-Founder / CTO at Stealth AI Startup
    2019 - 2019 · Less than a year

    Co-founded an healthcare AI startup and grew it to 300k+ ARR. Oversaw technology, client relations, and technical leadership.

  • Software Engineer, ML Infra at Airbnb
    May 2018 - Aug 2018 · 4 mos

    Compute fleet management and efficiency. $100k USD+ saved over 4 month internship.

  • Software Engineer, Data Infra at Facebook
    Jan 2018 - Apr 2018 · 4 mos

    ML-based Anomaly Detection

  • Software Engineer, Cloud and Compute Infra at Salesforce
    May 2017 - Aug 2017 · 4 mos

    Internal Capacity Engineering