Security Researcher
About the role
Antigen seeks security researchers to join full-time in San Francisco to drive enterprise AI-adversary research by field-testing our agent (tCell) in complex environments and turning observations into improvements for offensive AI security solutions.
Responsibilities
- Deploy our agent (tCell) against complex systems, observe how it chains attacks and where it gets stuck, step in where it lacks understanding, and turn that into research to improve the agent.
Qualifications
- 1+ years experience in security (offensive security preferred)
- Strong offensive security practitioner
- Genuine curiosity about how AI agents behave in adversarial settings
Skills
About Antigen
Continuous offensive security for the enterprise.
Antigen is an AI adversary for the enterprise. It maps, exploits, and secures your attack surface through nightly automated offensive testing and monthly human red team assessments. Every finding is delivered with traces, reproduction steps, and remediation directly in GitHub, Linear, or the Antigen Platform. We work with companies in financial services, healthcare, retail, and government where security is trust. We're backed by Lightspeed, DST Global, and Susa Ventures.