Ethan Benjamin in

Ethan Benjamin

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CTO at Sequen AI
📍 New York, New York, United States

Ethan Benjamin is the CTO of Sequen AI, where he leads the development of a behavior design engine. His expertise is in applied machine learning and research, honed during his time as a Staff Applied Scientist at Etsy and Director of Research at Text IQ. He holds a Masters from Columbia University and a double BS from Dartmouth College.

Outside of his professional work, Ethan has an interest in creative applications of technology, having co-developed a browser-based music sampling and remixing application. During his undergraduate studies at Dartmouth College, he was a member of the mens heavyweight rowing and swimming teams.

His company, Sequen AI, drove over $162 million in incremental revenue for its initial customers before officially launching out of stealth.

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Experience
10 Years
Current Role
CTO
Job Level
Leadership
Location
New York, New York, United States
Personality Overview

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Communication Style
Decision Approach
Work Preference

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Priorities

Topics Ethan cares about

Behavioral AI
His current company, Sequen AI, is building the first "Behavior Design Engine" for enterprises, focused on rethinking relevance and user interaction from first principles.
Personalized Search
He co-authored several papers on personalized ranking and unified embedding models for e-commerce search during his tenure as a machine learning leader at Etsy.
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Career

Work history

4-2025
CTO
Sequen AI
10-2021 - 4-2025
Staff Applied Scientist
Etsy
3-2021 - 10-2021
Staff Machine Learning Engineer
Etsy
4-2019 - 3-2021
Senior Machine Learning Engineer
Etsy
2-2017 - 4-2019
Director of Research
Text IQ
In the press

Media appearances

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Education
2014 - 2016
Master's degree
Columbia University
2006 - 2010
Double BS
Dartmouth College
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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