Ethan Shea

YC P26 | CTO & Founder at Regbase

Founder

Regbase· Spring 2026 🇺🇸 New York, New York, United States

in LinkedIn 𝕏 @ethshea

2026Founder· Regbase

Founder · since 2026

Company

Regbase

Role

Founder, CTO

current

Stage

—

no public source

Raised

—

no public source

Based

New York, NY

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Regbase

Automating Corporate Compliance, Worldwide

Spring 2026

Experience

Career

Regbase
Founder
Founder, CTO · New York, NY · 2026 – Present
2026
Vercel
Staff Software Engineer · New York, New York, United States · 2025 – 2026
2025
Vercel
Senior Software Engineer · New York, New York, United States · 2023 – 2025
2023
Citadel
Technical Lead · New York, New York, United States · 2022 – 2023
2022
Citadel
Software Engineer · New York, New York, United States · 2021 – 2022
2021
Microsoft
Software Engineer II · Redmond, Washington, United States · 2020 – 2021
2020
Microsoft
Software Engineer · Redmond, WA · 2019 – 2020
2019
Applied Physics Laboratory-UW
Engineering Intern · Seattle · 2019
2019
University of Washington
Undergraduate Teaching Assistant · Seattle · 2018
2018
Microsoft
Software Engineering Intern · Redmond · 2018
2018
Applied Physics Laboratory-UW
Engineering Intern · Seattle · 2017 – 2018
2017
Triangul8
Engineering Intern · 2017
2017
Tirebuyer.com
IT Operations Intern · Kirkland, Washington · 2017
2017
Technical Systems, Inc. (TSI)
Engineering Intern · Lynwood, WA · 2016
2016
Caradigm
Summer Intern · Bellevue, WA · 2015
2015

Bio

Founder/CTO at Regbase- The data-layer for legal Previously I was a staff engineer at Vercel, where I built the observability backend and the first Vercel Agent. Before that I worked at Citadel where my team maintained the firm's master list of everything that can be traded. I grew up in Seattle and went to the University of Washington.