Mu (Kevin) Lin

Head of AI @ Architect Labs (ex@Anthropic)

Palo Alto, California, United States

About

Machine Learning, LLM post-training, Engineering Leadership, Distributed System, Service Oriented Architecture, Big Data Infrastructure (Note: I'm not able to update my Anthropic tenure, as I no longer have access to my Ant email :<)

Experience

  • Head of AI at Architect Labs
    Dec 2025 - Present · 8 mos

    - Head of AI & Founding member - LLM post-trainings for chip designs

  • Head of Trust & Safety ML at Anthropic
    Feb 2024 - Present · 2 yrs 6 mos

    - ML Engineering Manager supporting AI trust & safety. - Co-author of Constitutional Classifiers: -- https://arxiv.org/pdf/2501.18837 -- https://iclr.cc/virtual/2026/poster/10008324

  • Engineering Manager at Stripe
    Aug 2021 - Feb 2024 · 2 yrs 7 mos

    Head of Transaction Risk ML - I run multiple Machine Learning and Backend engineering teams at Stripe’s Risk Tech org. - My Eng org (20 ppl) is responsible for Stripe's transaction risk protections, payment fraud protections, card testing protections, and Radar SaaS products, building on top of cutting edge ML technologies and the underlying scalable distributed systems

  • Engineering Manager at Lyft
    Mar 2016 - Aug 2021 · 5 yrs 6 mos

    * Engineering Manager, Head of Infra Capacity (Jul 2020 - Aug 2021) I run the Capacity, Efficiency and Infra Reliability engineering teams at Lyft. * Engineering Manager, Self-Driving Division (Aug 2019 - Jul 2020) Managed the Scenarios team at Lyft’s self-driving division with a group of talented engineers. Our mission is to model and organize the world's dynamic driving situations and make this information easily accessible to accelerate and evaluate self-driving developments.  * Engineering Manager, Lyft Rideshare (Jan 2017 – Aug 2019) Ran the Backend and Web Portal Engineering teams for Lyft Business. Join us building the world-class Business Travel products and Transportation experience! * Senior Software Engineer (Mar 2016 – Jan 2017) Research engineer at Data Infrastructure - Hadoop/Hive infra - Data ingestion - ETL pipeline - Machine learning infra

  • Tech Lead, Senior Software Engineer at Twitter
    Apr 2013 - Mar 2016 · 3 yrs

    Tech Lead  Ads Targeting and Brand Team  Leading Engineer on Ads Event/TV targeting and Brand ROI products  Leading Engineer on Ads Hadoop and Logging infrastructure  Key developer of Keyword and Handle targeting modeling  Twitter Ads Golden Snoopy Award Winner Committer of Open-Source Scalding (https://github.com/twitter/scalding)