{"id":6277,"url":"https://alion.io/job/perplexity-ai-member-of-technical-staff-software-engineer-security","title":"Member of Technical Staff (Software Engineer, Security)","company":{"id":3,"name":"Perplexity AI","domain":"perplexity.ai","url":"https://alion.io/company/perplexity","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":81,"open_postings":35,"ghost_share":0,"stale_share":0.771,"repost_share":0,"time_to_fill_p50_days":52,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States","New York, United States","London, United Kingdom","Belgrade, Serbia"],"countries":["US","GB","RS"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":220000,"max":405000,"currency":"USD","period":"year","gross":null,"usd_annual":405000},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Perplexity","optional":false},{"name":"Python","optional":false},{"name":"Threat Modeling","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true}],"status":"live","first_seen_at":"2025-12-02T23:43:40Z","employer_posted_date":"2025-12-02","last_verified_at":"2026-10-31T15:53:12Z","board_verified":true,"closed_at":null,"days_open":332,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":332},"description":"About the Role\nPerplexity 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.\nResponsibilities\nDesign, build, and maintain software and automation that improves our detection and response program, including alert enrichment, triage workflows, and investigation tooling.\n\nImplement and enhance internal AI agents and security bots that assist with monitoring, investigations, reporting, and other security operation tasks.\n\nDevelop and operate systems and workflows that support the bug bounty and vulnerability disclosure program, including intake, triage, prioritization, and remediation tracking.\n\nPartner with product and engineering teams to threat model new features and systems, propose mitigations, and add guardrails into designs and implementations.\n\nContribute to secure-by-default libraries, services, and patterns that make it easy for teams to build secure features.\n\nIntegrate security signals from cloud, endpoints, SaaS, and applications into cohesive pipelines and data models that support detection and analysis.\n\nBuild automation to reduce manual work in incident response, containment, and remediation.\n\nCollaborate with security engineers and other software engineers to review designs and code, and to continuously improve our security tooling and platforms.\n\nQualifications\n4+ 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.\n\nProficiency in at least one major programming language (such as Python, Go, or TypeScript) and experience building production services, CLIs, or internal tools.\n\nExperience integrating with security-relevant systems such as logging pipelines, SIEMs, EDR, cloud APIs, or identity platforms.\n\nPractical experience with threat modeling, secure design, or application security reviews for services or features.\n\nExperience operating or contributing to bug bounty or vulnerability management programs is a plus.\n\nFamiliarity with cloud infrastructure (AWS preferred) and modern SaaS environments.\n\nAbility to work closely with cross-functional teams, own projects end-to-end, and ship pragmatic, high-impact improvements.\n\nBonus: Experience designing or improving AI-powered agents or automation used for security operations.","description_format":"text","description_chars":2630,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["LLM & Generative AI","Search Engines","Foundation Models","AI 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