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Perplexity Logo Perplexity · IT - Software Development

Software Engineer - Security

United States, San Francisco 210000.00 - 385000.00 USD / Year · Job Posted February 21, 2026
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Job Description

Perplexity is seeking a hands-on Software Engineer to build and evolve the software, automations, and systems that power our security operations. This role focuses on engineering security tools and internal AI-driven agents that improve detection and response, vulnerability management, and the overall security posture of our products and infrastructure.

Job Responsibility

  • Design, build, and maintain software and automation that improves our detection and response program, including alert enrichment, triage workflows, and investigation tooling
  • Implement and enhance internal AI agents and security bots that assist with monitoring, investigations, reporting, and other security operation tasks
  • Develop and operate systems and workflows that support the bug bounty and vulnerability disclosure program, including intake, triage, prioritization, and remediation tracking
  • Partner with product and engineering teams to threat model new features and systems, propose mitigations, and add guardrails into designs and implementations
  • Contribute to secure-by-default libraries, services, and patterns that make it easy for teams to build secure features
  • Integrate security signals from cloud, endpoints, SaaS, and applications into cohesive pipelines and data models that support detection and analysis
  • 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, and to continuously improve our security tooling and platforms

Requirements

  • 4+ years of experience as a software engineer with significant time spent building security-related tools, platforms, or automations, or in a security engineering role with strong software development responsibilities
  • Proficiency in at least one major programming language (such as Python, Go, or TypeScript) and experience 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 for services or features
  • 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 is a plus
  • Bonus: Experience designing or improving AI-powered agents or automation used for security operations

What we offer

  • Offers Equity
  • Full-time U.S. employees enjoy a comprehensive benefits program including equity, health, dental, vision, retirement, fitness, commuter and dependent care accounts, and more
  • Full-time employees outside the U.S. enjoy a comprehensive benefits program tailored to their region of residence
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