# Security Researcher at Antigen

- Company: Antigen (YC F25)
- What the company does: Continuous offensive security for the enterprise. Backed by Y Combinator.
- Company website: https://antigen.sh/
- Type: Startups (AI role)
- Level: Mid level
- Location: San Francisco, CA, US
- Work setup: On-site
- Pay: $150K to $220K base salary per year (USD)
- Posted: 2026-09-10
- Apply by: 2026-10-25
- Apply: https://www.ycombinator.com/companies/antigen/jobs/CAQhaJY-security-researcher
- Page: https://www.1752.vc/careers/jobs/antigen-security-researcher/

## About the role

We're looking for security researchers to join us full-time in San Francisco. You'll be an expert-in-the-loop - driving our agents into real environments, finding where they break down, and collaborating with our research team to make them more capable.

## What they're looking for

- 1+ years of experience
- US citizen/visa only
- Full-time Engineering role

Tags: Engineering