Matthew Bryant

Red team at OpenAI

Founder

2025OffSec Engineer· OpenAI

Founder · since 2019

Company

OpenAI

Role

OffSec Engineer

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

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

Profile coverage4 of 7 · missing education, posts, contact

LunaSec

An Open Source dependency security tool that is smarter than the rest

Experience

Career

OpenAI
OffSec Engineer · San Francisco Bay Area · 2025 – Present
2025
Snap Inc.
Security Engineer · 2020 – 2025
2020
Refinery Labs Inc.
Founder
CEO & Founder · San Francisco Bay Area · 2019 – 2020
2019
Snap Inc.
Security Engineer · Mountain View, California · 2018 – 2019
2018
Google
Security Engineer / Red Team · San Francisco Bay Area · 2017 – 2018
2017
Uber
Senior Security Engineer · San Francisco Bay Area · 2017
2017
Uber
Application Security Engineer · 1455 Market St, San Francisco, CA · 2015 – 2017
2015
Bishop Fox
Security Consultant · San Francisco, CA · 2014 – 2015
2014
Underground Computers Inc.
Web Developer & Web Automation Developer · Hudsonville, MI · 2010 – 2014
2010