Offensive Security Engineer

🕒 April 2

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Perplexity

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2022

🤖 Artificial Intelligence

☁️ SaaS

Artificial Intelligence • SaaS

Perplexity is an AI-powered conversational search and assistant platform that lets users ask natural-language questions and explore curated topic "Spaces" such as Finance, Health, and Sports. It provides tools for comparing, troubleshooting, and analyzing information, maintains search history, and offers Pro subscription features alongside multiple sign-in options (Google, Apple, email, SSO). The product is delivered as a web-based service focused on surfacing concise, sourced answers and research assistance.

📋 Description

• Plan and execute red team and purple team engagements simulating advanced threat actors across cloud infrastructure (AWS, Kubernetes), endpoints, and application surfaces • Conduct continuous penetration testing of web applications, APIs, mobile clients, browser extensions, cloud infrastructure, and internal services • Assess AI/ML-specific attack surfaces including prompt injection, model exfiltration, agent abuse, tool-use exploitation, and MCP security boundaries • Develop and maintain custom offensive tooling, exploits, and automation to improve the efficiency and coverage of security testing • Perform open-scope adversary simulations that test detection and response capabilities end to end, collaborating closely with the defensive security team • Drive threat modeling sessions with engineering teams to identify and prioritize attack vectors in new features and architectures • Deliver clear, actionable findings to both technical and executive audiences; partner with engineering to validate remediations • Contribute to the security of CI/CD pipelines, supply chain integrity, and secrets management through offensive assessment • Stay current on emerging attack techniques, vulnerability research, and adversary tradecraft; bring external perspective into Perplexity's security strategy

🎯 Requirements

• 5+ years of hands-on experience in offensive security, red teaming, or penetration testing • Deep technical expertise in at least two of: cloud security (AWS/GCP/Azure), web/API application security, Kubernetes and container security, macOS/Linux endpoint security, network penetration testing, or CI/CD pipeline security • Track record of discovering impactful vulnerabilities or developing novel attack techniques in production environments • Strong programming and scripting skills in Python, Go, or similar languages; comfortable writing custom tooling and exploits • Experience with industry-standard offensive tools (Burp Suite, Cobalt Strike / Sliver / Mythic, Metasploit, BloodHound, nuclei, etc.) and ability to operate beyond them • Excellent written and verbal communication; able to translate complex technical findings into clear risk narratives • Experience assessing AI/ML systems, LLM applications, or agentic workflows for security vulnerabilities • Bonus: Published security research, conference talks (DEF CON, Black Hat, BSides), CVE credits, or meaningful bug bounty contributions

🏖️ Benefits

• 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.