{"schemaVersion":"jobsearcher.job.v1","id":"5401fd15fddba9f0b1b01673","url":"https://jobsearcher.com/jobs/5401fd15fddba9f0b1b01673","canonicalUrl":"https://jobsearcher.com/jobs/5401fd15fddba9f0b1b01673","title":"AI Security Engineer","description":"Join to apply for the AI Security Engineer role at PerplexityPlease ensure you read the below overview and requirements for this employment opportunity completely.Base pay range$250,000.00/yr - $350,000.00/yrPerplexity is seeking a highly skilled, experienced, and hands-on AI Security Engineer to join our security team, driving the protection of next‐generation AI systems against adversarial threats. In this role, you'll design and implement robust mechanisms to secure self‐hosted models, LLM APIs, agents, MCPs, and the core AI stack. You'll empower developers with tools and guidance, as well as technical contributions, enabling innovation while ensuring AI security is strong by default.Our tech stack includes Python, NextJS, TypeScript, Docker, AWS, Kubernetes, and PostgreSQL.ResponsibilitiesDefine, build, and refine mechanisms to secure AI systems (including self‐hosted models, LLM APIs, agents, MCPs, and other core components of the AI stack) against adversarial behavior of all kindsUnderstand technically complex AI systems, identify potential weaknesses in their architecture, and implement improvementsAt least 50% of time performing hands‐on remediation, also working closely with peer engineers to drive remediationsPlan and carry out threat modeling activities and realistic threat simulations across our offeringsConduct cybersecurity evaluations and lead AI security assessments in a cross‐functional environmentDevelop initiatives that improve our capabilities to effectively evaluate AI systems and enhance the organization's prevention, detection, response, and threat hunting capabilitiesProvide guidance and education to developers to help deter and prevent threatsQualificationsHands‐on coding and prompting experienceBachelor or Master of Science in Computer Science or a related field, or equivalent experienceBe a technical and process subject matter expert regarding AI security services and attacker tactics, techniques, and procedures xmcpwfuGood understanding of LLMs, AI architecture patterns, machine learning models, and related technologies such as MCPUnderstanding of application security principles and secure coding practicesExperience developing and implementing security procedures and policiesStrong problem‐solving, project management, leadership, and communication skillsSelf‐motivated with a willingness to take ownership of tasks4+ years of industry experienceSeniority levelMid‐Senior levelEmployment typeFull‐timeJob functionInformation TechnologyIndustriesSoftware Development","company":"Perplexity","rawCompany":"perplexity","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-04-09T06:07:41.462Z","occupations":[{"code":"15-1299.05","title":"Information Security Engineers","slug":"information-security-engineers"},{"code":"15-1212.00","title":"Information Security Analysts","slug":"information-security-analysts"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"AI Security Engineer","description":"Join to apply for the AI Security Engineer role at PerplexityPlease ensure you read the below overview and requirements for this employment opportunity completely.Base pay range$250,000.00/yr - $350,000.00/yrPerplexity is seeking a highly skilled, experienced, and hands-on AI Security Engineer to join our security team, driving the protection of next‐generation AI systems against adversarial threats. In this role, you'll design and implement robust mechanisms to secure self‐hosted models, LLM APIs, agents, MCPs, and the core AI stack. You'll empower developers with tools and guidance, as well as technical contributions, enabling innovation while ensuring AI security is strong by default.Our tech stack includes Python, NextJS, TypeScript, Docker, AWS, Kubernetes, and PostgreSQL.ResponsibilitiesDefine, build, and refine mechanisms to secure AI systems (including self‐hosted models, LLM APIs, agents, MCPs, and other core components of the AI stack) against adversarial behavior of all kindsUnderstand technically complex AI systems, identify potential weaknesses in their architecture, and implement improvementsAt least 50% of time performing hands‐on remediation, also working closely with peer engineers to drive remediationsPlan and carry out threat modeling activities and realistic threat simulations across our offeringsConduct cybersecurity evaluations and lead AI security assessments in a cross‐functional environmentDevelop initiatives that improve our capabilities to effectively evaluate AI systems and enhance the organization's prevention, detection, response, and threat hunting capabilitiesProvide guidance and education to developers to help deter and prevent threatsQualificationsHands‐on coding and prompting experienceBachelor or Master of Science in Computer Science or a related field, or equivalent experienceBe a technical and process subject matter expert regarding AI security services and attacker tactics, techniques, and procedures xmcpwfuGood understanding of LLMs, AI architecture patterns, machine learning models, and related technologies such as MCPUnderstanding of application security principles and secure coding practicesExperience developing and implementing security procedures and policiesStrong problem‐solving, project management, leadership, and communication skillsSelf‐motivated with a willingness to take ownership of tasks4+ years of industry experienceSeniority levelMid‐Senior levelEmployment typeFull‐timeJob functionInformation TechnologyIndustriesSoftware Development","datePosted":"2026-04-09T06:07:41.462Z","dateModified":"2026-04-09T06:07:41.462Z","hiringOrganization":{"@type":"Organization","name":"Perplexity","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"5401fd15fddba9f0b1b01673"},"url":"https://jobsearcher.com/jobs/5401fd15fddba9f0b1b01673"}}