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Job
Member of Technical Staff (Software Engineer, Security)
Security Engineer
• On-site
• Full-time
• 📍 San Francisco
Build the software, automations, and internal AI agents that power Perplexity's security operations — improving detection, response, and vulnerability management.
Stack
Responsibilities
- ▹Design, build, and maintain software and automation improving detection and response, including alert enrichment, triage workflows, and investigation tooling
- ▹Implement and enhance internal AI agents and security bots assisting with monitoring, investigations, and reporting
- ▹Develop and operate systems and workflows supporting the bug bounty and vulnerability disclosure program: intake, triage, prioritization, remediation tracking
- ▹Partner with product and engineering teams to threat model new features, propose mitigations, and add guardrails
- ▹Contribute to secure-by-default libraries, services, and patterns
- ▹Integrate security signals from cloud, endpoints, SaaS, and applications into cohesive pipelines and data models
- ▹Build automation to reduce manual work in incident response, containment, and remediation
- ▹Collaborate with security engineers and other software engineers to review designs and code
Requirements
- ▹4+ years of software engineering experience with significant time building security-related tools, platforms, or automations, or a security engineering role with strong development responsibilities
- ▹Proficiency in at least one major programming language (Python, Go, or TypeScript), building production services, CLIs, or internal tools
- ▹Experience integrating with security-relevant systems such as logging pipelines, SIEMs, EDR, cloud APIs, or identity platforms
- ▹Practical experience with threat modeling, secure design, or application security reviews
- ▹Familiarity with cloud infrastructure (AWS preferred) and modern SaaS environments
- ▹Ability to work closely with cross-functional teams, own projects end-to-end, and ship pragmatic, high-impact improvements
Nice to have
- ▹Experience operating or contributing to bug bounty or vulnerability management programs
- ▹Experience designing or improving AI-powered agents or automation used for security operations
Soft skills
Cross-functional collaboration with security and engineering teamsEnd-to-end ownership of projectsShipping pragmatic, high-impact improvements
About the company
Perplexity's security team improves the security posture of its products and infrastructure through software, automation, and internal AI agents.
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