AI Security Engineer
4 weeks ago
Perplexity 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. Read on to find out what you will need to succeed in this position, including skills, qualifications, and experience. Our tech stack includes Python, NextJS, TypeScript, Docker, AWS, Kubernetes, and PostgreSQL. Responsibilities Define, 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 kinds. Understand technically complex AI systems, identify potential weaknesses in their architecture, and implement improvements. At least 50% of time performing hands‑on remediation. Also working closely with peer engineers to drive remediations. Plan and carry out threat modeling activities and realistic threat simulations across our offerings. Conduct cybersecurity evaluations and lead AI security assessments in a cross‑functional environment. Develop initiatives that improve our capabilities to effectively evaluate AI systems and enhance the organization’s prevention, detection, response, and threat hunting capabilities. Provide guidance and education to developers to help deter and prevent threats. Qualifications Hands‑on coding and prompting experience. Bachelor of Science or Master of Science in Computer Science or a related field, or equivalent experience. Be a technical and process subject matter expert regarding AI security services and attacker tactics, techniques, and procedures. Good understanding of LLMs, AI architecture patterns, machine learning models, and related technologies such as MCP. Understanding of application security principles and secure coding practices. Experience developing and implementing security procedures and policies. Strong problem‑solving, project management, leadership, and communication skills. Self‑motivated with a willingness to take ownership of tasks. 4+ years of industry experience. The cash compensation range for this role is $250,000 - $350,000. Final offer amounts are determined by multiple factors, including experience and expertise, and may vary from the amounts listed above. Equity: In addition to the base salary, equitymay be partof the total compensation package. Benefits: Comprehensive health, dental, and vision insurance for you and your dependents. Includes a 401(k) plan. #J-18808-Ljbffr
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AI Security Engineer
4 weeks ago
San Francisco, CA, United States Perplexity AI Full timePerplexity is an AI-powered answer engine founded in December 2022 and growing rapidly as one of the worlds leading AI platforms. Perplexity has raised over $1B in venture investment from some of the worlds most visionary and successful leaders, including Elad Gil, Daniel Gross, Jeff Bezos, Accel, IVP, NEA, NVIDIA, Samsung, and many more. Our objective is to...
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AI Security Engineer
4 weeks ago
San Francisco, CA, United States Perplexity AI Inc. Full timePerplexity is seeking a highly skilled, experienced, and handson AI Security Engineer to join our security team, driving the protection of nextgeneration AI systems against adversarial threats. In this role, youll design and implement robust mechanisms to secure selfhosted models, LLM APIs, agents, MCPs, and the core AI stack. You'll empower developers with...
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AI Platform Engineer — Scalable Security Systems
2 weeks ago
San Francisco, United States Virtue AI Full timeA cutting-edge AI startup is seeking an AI Platform Engineer to design and implement distributed systems and APIs crucial for their AI security products. This role emphasizes collaboration with ML engineers and building scalable, secure systems. Strong proficiency in Python or Go, along with experience in distributed systems and containerization, is...
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Security Engineer
4 weeks ago
San Francisco, CA, United States AI Fund Full timeJoin to apply for the Security Engineer role at AI Fund Join to apply for the Security Engineer role at AI Fund About Baseten Check you match the skill requirements for this role, as well as associated experience, then apply with your CV below. Baseten provides the infrastructure, tooling, and expertise needed to bring great AI products to market - fast....
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Senior Security Engineer
2 weeks ago
San Francisco, CA, United States Hayden AI Full timeAbout Us At Hayden AI, we are on a mission to harness the power of artificial intelligence and machine learning to transform the way governments and businesses address real-world challenges. Ready to make your application Please do read through the description at least once before clicking on Apply. From optimizing bus lane and bus stop enforcement to...
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Senior Security Engineer
2 weeks ago
San Francisco, CA, United States Hayden AI Full timeAbout Us At Hayden AI, we are on a mission to harness the power of artificial intelligence and machine learning to transform the way governments and businesses address real-world challenges. Is this the next step in your career Find out if you are the right candidate by reading through the complete overview below. From optimizing bus lane and bus stop...
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Security Engineer
4 weeks ago
San Francisco, CA, United States AI Fund Full timeJoin to apply for the Security Engineer role at AI Fund Join to apply for the Security Engineer role at AI Fund About Baseten Baseten provides the infrastructure, tooling, and expertise needed to bring great AI products to market - fast. Backed by top investors including About Baseten Baseten provides the infrastructure, tooling, and expertise needed to...
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Security Engineer
2 weeks ago
San Francisco, United States AI Fund Full timeJoin to apply for the Security Engineer role at AI FundJoin to apply for the Security Engineer role at AI FundAbout BasetenBaseten provides the infrastructure, tooling, and expertise needed to bring great AI products to market - fast. Backed by top investors includingAbout BasetenBaseten provides the infrastructure, tooling, and expertise needed to bring...
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San Francisco, CA, United States Abridge AI Inc. Full timeA dynamic healthcare AI company in San Francisco seeks a Senior or Staff Cloud Security Engineer to drive key security initiatives. Are you the right applicant for this opportunity Find out by reading through the role overview below. You'll impact product security and automation while mentoring cross-functional teams in securing cloud infrastructure. Ideal...
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AI Security Researcher
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San Francisco, United States Harmonic Security Full timeAbout Harmonic SecurityHarmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently.We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel.As...
