3x founder

Colin McDonnell

Founder @ Pullfrog

Founder

Brick Health· Winter 2019🇺🇸 Seattle, Washington, United States

in LinkedIn 𝕏 @colinhacks

2025Founder· Pullfrog

Founder · since 2018

Company

Pullfrog

Role

Founder

current

Stage

—

no public source

Raised

—

no public source

Based

—

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

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Brick Health

Building infrastructure to expand scope and quality of virtual care

Winter 2019

Experience

Career

Pullfrog
Founder
Founder · 2025 – Present
2025
Zod
Creator and Maintainer · 2020 – Present
2020
Clerk.com
OSS Fellow · 2024 – 2025
2024
Bun
Developer Relations · 2022 – 2023
2022
Gel
Head of Developer Relations · Cambridge, Massachusetts, United States · 2021 – 2022
2021
Brick Health
Founder
Founder · San Francisco, California, United States · 2020 – 2021
2020
Bagel Health
Founder
Founder · 2018 – 2020
2018
Matrix Partners
Student Associate · 2014 – 2015
2014
Swift Navigation
Intern · 2015
2015
National Bureau of Economic Research
Research Assistant · Cambridge, MA · 2013
2013
MIT Research Lab of Electronics
Researcher · Cambridge, MA · 2011
2011

Bio

I'm an engineer, founder, open-sourcer, digital nomad, MIT alum, and movie buff. Currently trying to build the medical infrastructure to underlie the virtual primary care revolution!