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Junfeng Yang
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Junfeng Yang

@junfengy
Professor-turned-entrepreneur, Technologist, Advisor, Co-founder and CEO @NimbleDroid, Professor @Columbia, PhD in CS @Stanford
cs.columbia.edu/~junfeng
Joined June 2009
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  • user avatar
    Junfeng Yang
    @junfengy
    May 4
    Hey @DarioAmodei, before AI automates 70% of customer service, can someone fix my Claude Code access? @AnthropicAI couldn't resolve my ticket and zero human reps have stepped in for over a month.
  • user avatar
    Junfeng Yang
    @junfengy
    Apr 28
    It's been 3+ weeks since I filed a support ticket and I still haven't heard from a human. Can someone @AnthropicAI look into this?
  • user avatar
    Junfeng Yang
    @junfengy
    Jan 28
    Kudos to Asaf Bord for an insightful talk in the Columbia DAP Lab seminar on building and deploying AI agents at a Fortune-100 insurance company. Great to see real, production-grade agent systems making impact at scale 👏
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  • user avatar
    Junfeng Yang
    @junfengy
    Nov 27, 2025
    Great having Maël and Columbia PhD alum Ziyuan from Squarepoint Ventures in my Agent for Work seminar yesterday. Students learned how they assess later-stage companies. Huge thanks to Maël and Ziyuan for sharing their insights!
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  • user avatar
    Junfeng Yang
    @junfengy
    Nov 19, 2025
    Amazing lecture and panel by four Columbia ’24 founders/builders — Rutvik, Dominic, Alfonso & Sid — in my Agent for Work seminar! Students left truly inspired with sharp insights on customer discovery, fundraising, and market positioning.
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