Tan Vachiramon

About Tan Vachiramon

Principal/Staff Data Scientist with a PhD and 10+ years of experience at places like Roblox, Meta (Oculus), and Airbnb. I have a track record of leading data science efforts that directly impact core business metrics- At Roblox, I was the tech lead for the Game Engine data science team. I developed company-wide stability metrics reported to the CEO and led initiatives that resulted in a significant increase in Android time spent- At Airbnb, I developed and deployed a model to classify business travelers that drove 300k new users and 1M nights booked. I also improved the WeChat signup flow, resulting in a 20% increase in signups- At Meta, I was the lead data scientist for the hand tracking team on Oculus Quest, defining KPIs and building ML models to predict tracking loss.I\'m looking for a senior, staff, or principal role where I can solve challenging problems with data.

Experience

1. Principal Data Scientist

   Roblox

   Jun 2021 — Present · San Mateo County, CA, US

   I led data-driven initiatives to enhance platform performance, scalability, and user experience. My work translated complex technical data into actionable strategies that directly informed engineering priorities and business outcomes.Established and defined novel performance metrics to accurately measure game engine quality and its impact on user experience.Identified critical system bottlenecks and optimized resource utilization at megascale, significantly improving platform efficiency.Developed data models that guided cost-reduction strategies, minimizing the infrastructure cost-to-serve for billions of users.Provided key data-backed recommendations that shaped the long-term roadmap for crucial infrastructure investments.

Education

• UCLA

  Master's degree, Financial Engineering

  2012 — 2013

• Balliol College, Oxford University

  MEng, Engineering with Computer Science MEng

  2001 — 2005

• Oxford University

  DPhil, Communications Engineering

  2005 — 2009