Application 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

Technology, AIIndustries

Requirements

8+ years of experience in Application Security, Product Security, or similar roles
Deep understanding of secure software development practices, threat modeling, and common vulnerabilities (e.g., OWASP Top 10)
Familiarity with modern authentication and authorization patterns (OAuth, OIDC, SSO, Zero Trust)
Proven track record of building secure infrastructure, reusable libraries, or developer tooling
Proficiency with at least one major programming language (e.g., Python, Go, JavaScript, Java)
Bonus: Experience with securing cloud infrastructure or AI/ML systems

Responsibilities

Design and implement scalable, developer-friendly security solutions that integrate directly into engineering workflows
Lead threat modeling, design reviews, and code reviews for new features and major product launches
Build and evolve secure-by-default frameworks for authentication, authorization, input validation, and secrets management
Develop and integrate automated security tooling into CI/CD pipelines (e.g., linters, dependency scanners, policy enforcement)
Collaborate with product and engineering teams to remediate vulnerabilities, and contribute to incident response and postmortems
Own, manage, and improve our third-party penetration testing engagements and bug bounty program, working closely with external security researchers to identify and resolve vulnerabilities
Stay current on emerging threats and attack techniques, and drive ongoing maturity of our application security posture

Skills

Key technologies and capabilities for this role

Application SecurityThreat ModelingOWASP Top 10OAuthOIDCSSOZero TrustCI/CDPythonGoJavaScriptJavaSecrets ManagementPenetration TestingBug Bounty

Questions & Answers

Common questions about this position

What is the salary range for the Application 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 skills and experience are required for this role?

Candidates need 8+ years in Application Security or similar, deep understanding of secure software development, threat modeling, OWASP Top 10, familiarity with OAuth/OIDC/SSO/Zero Trust, proven track record in secure infrastructure or tooling, and proficiency in a major language like Python, Go, JavaScript, or Java.

What is the company culture like at Perplexity AI?

This information is not specified in the job description.

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

A strong candidate has 8+ years in app sec, expertise in threat modeling and OWASP Top 10, experience with auth patterns like OAuth and Zero Trust, and has built secure tooling; bonus for cloud or AI/ML security.

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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