AI Security Engineer at Perplexity AI

San Francisco, California, United States

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$250,000 – $350,000Compensation

Senior (5 to 8 years), Expert & Leadership (9+ years)Experience Level

Full TimeJob Type

UnknownVisa

AI, Technology, CybersecurityIndustries

Requirements

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

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

Skills

Key technologies and capabilities for this role

PythonNextJSTypeScriptDockerAWSKubernetesPostgreSQLLLMsAI SecurityThreat ModelingMachine LearningApplication Security

Questions & Answers

Common questions about this position

What is the salary range for the AI Security Engineer position?

The salary range is $250K - $350K.

Is this a remote position or does it require office work?

This information is not specified in the job description.

What technical skills are required for this role?

Required skills include hands-on coding and prompting experience, good understanding of LLMs, AI architecture patterns, machine learning models, and related technologies such as MCP, plus familiarity with the tech stack: Python, NextJS, TypeScript, Docker, AWS, Kubernetes, and PostgreSQL.

What does the security team culture look like at Perplexity AI?

The role involves hands-on remediation (at least 50% of time), working closely with peer engineers, conducting threat modeling and simulations, and providing guidance to developers in a cross-functional environment.

What makes a strong candidate for this AI Security Engineer role?

Strong candidates have 4+ years of industry experience, a degree in Computer Science or equivalent, expertise in AI security and attacker tactics, understanding of application security principles, and strong problem-solving, leadership, and communication skills.

Perplexity AI

Advanced answer engine providing reliable information

About Perplexity AI

Perplexity AI provides an advanced answer engine that delivers accurate and reliable responses to user queries. The platform uses current sources to ensure the information is both precise and relevant. It caters to a wide audience, including individuals looking for quick answers and businesses needing detailed information. Unlike many competitors, Perplexity AI emphasizes high-quality, source-backed answers, making it a valuable resource for users seeking trustworthy data. The company's goal is to meet the increasing demand for immediate access to reliable information, generating revenue through subscription fees, advertising, and partnerships.

San Francisco, CaliforniaHeadquarters

2022Year Founded

$890MTotal Funding

LATE_VCCompany Stage

Data & Analytics, Consumer SoftwareIndustries

201-500Employees

Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

Company Equity

Risks

Pending copyright infringement class action poses legal and financial challenges.

Competition from Google's AI Mode could impact user retention and market share.

Otterly.AI's brand visibility tool may pressure Perplexity to maintain high performance.

Differentiation

Perplexity AI integrates large language models with search engines for precise responses.

The platform offers an open-source environment, enhancing public access to AI tools.

Perplexity's strategic acquisition of Carbon boosts its data connectivity capabilities.

Upsides

Partnership with Tripadvisor enhances travel planning with personalized recommendations.

$500M funding round increases valuation to $9 billion, supporting growth and innovation.

Integration with FactSet attracts financial clients with enhanced data accessibility.

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