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Andrew Mauboussin

CTO / engineering lead · Surge AI

Surge AI's first engineer (Aug 2020), now described as CTO. He built the platform behind Surge's quality-controlled human labelling.

medium confidenceAt Surge AI since 2020Updated 2026-09-19

Background

A Harvard computer science graduate, he previously led spam and integrity work at Twitter and applied ML to financial modelling at Kensho Technologies. He posts on LessWrong about alignment, which suggests ties to the AI-safety community.

What they run now

Engineering of Surge's labelling and quality platform and, presumably, RL-environment tooling (Surge set up an RL-environments org in Sept 2025). His exact current remit is not public.

Career

  1. 2020 – presentFirst engineer, now CTO, Surge AI
  2. ML for financial modelling, Kensho Technologies
  3. Led Spam & Integrity efforts, Twitter
  4. Harvard University, Computer science

On the record

Alignment field-building

Proposed an interactive directory to connect alignment researchers with funders, calling it high-leverage. source

Recent posts

2 posts archived · most engaged first, then the latest

Andrew Mauboussin
Engineering at Surge AI
excited to join the fellows fund community and meet everyone at the forum this Thursday!
915 comments
Andrew Mauboussin
Engineering at Surge AI
Edwin is truly a one-of-a-kind founder, and it's been amazing working with him at Surge for the past 5 years. Check out his first podcast with 20VC! Lots of work ahead of us to make sure AGI is built with the richness of human intelligence. If the podcast really resonates with you, we're hiring for a variety of roles across engineering, research, and gen ai operations. Feel free to reach out to me directly to me if you're interested
371 comments2 reposts

Connections

Who they amplify

Accounts whose posts Andrew has reposted recently: Edwin Chen, Surge AI.

Why it matters here

He knows how Surge measures rater quality in practice, which is the core technical problem a taste-data specialist has to solve.

How to reach

Speculation: a technical conversation about rater calibration or agreement metrics for subjective tasks. LessWrong or alignment circles may be a warm context.

What we could not establish
  • Formal title (LinkedIn headline says 'Engineering'; Contrary/ZoomInfo say CTO)
  • X handle not verified

Sources

  1. Contrary Research: Surge AI business breakdown
  2. LinkedIn: Andrew Mauboussin, Surge AI
  3. LessWrong: Andrew Mauboussin