Anti-Fraud & Abuse Engineer

Perplexity is an AI-powered answer engine founded in December 2022 and growing rapidly as one of the world’s leading AI platforms. Perplexity has raised over $1B in venture investment from some of the world’s most visionary and successful leaders, including Elad Gil, Daniel Gross, Jeff Bezos, Accel, IVP, NEA, NVIDIA, Samsung, and many more. Our objective is to build accurate, trustworthy AI that powers decision-making for people and assistive AI wherever decisions are being made. Throughout human history, change and innovation have always been driven by curious people. Today, curious people use Perplexity to answer more than 780 million queries every month–a number that’s growing rapidly for one simple reason: everyone can be curious.Perplexity is seeking a highly skilled, experienced and hands-on Anti Fraud & Abuse Engineer to join our dynamic security team, revolutionizing the way people search and interact with the internet. You will be responsible for designing, implementing, and operating cutting-edge monitoring and detection systems to identify and prevent fraudulent behaviors and abuse of our products and services.ResponsibilitiesDesign, build, and operate monitoring and detection systems to identify and prevent fraudulent behaviors and abusePerform adversary hunting to detect abuse and misuse of our products and servicesAnalyze how our products and services are being misused or abusedTrack and mitigate cost impacts of fraud and abuse across our technology stackResearch and anticipate emerging abuse techniques to stay ahead of evolving threatsGenerate actionable intelligence reports on new attack vectors, vulnerabilities, and threat actor tactics targeting LLM systemsBuild and maintain relationships with external threat intelligence partners and industry communitiesEstablish best practices, tools, and processes for our fraud and abuse detection programQualificationsExperience designing, implementing, and operating fraud detection, abuse prevention, or security monitoring systemsBackground in security, adversarial machine learning, threat intelligence, or fraud investigationsFamiliarity with adversarial tactics, techniques, and procedures (TTPs) targeting AI systemsExcellent communication skills, able to present to both technical and non-technical audiencesOur cash compensation range for this role is $200,000 - $280,000.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.Create a Job AlertInterested in building your career at Perplexity AI? Get future opportunities sent straight to your email.Apply for this jobindicates a required fieldFirst Name *Last Name *Email *Phone *Resume/CV *Enter manuallyAccepted file types: pdf, doc, docx, txt, rtfEnter manuallyAccepted file types: pdf, doc, docx, txt, rtfWebsiteLinkedIn ProfileWill you now or in the future require visa sponsorship for employment? * Select...Are you open to a hybrid work schedule (In office M-W-F) * Select...Are you located in the San Francisco Bay or New York Metro Area? * Select... #J-18808-Ljbffr

Created: 2025-09-21