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. Responsibilities Architect and implement next-gen agent platform that powers all agentic products at Perplexity with high efficiency, reliability and scalability. Stay up-to-date on new features released from external LLM providers and in-house researchers and provide unified interfaces to interact with different sizes of models. Improve the speed and quality of the AI agent codebase and engineering processes to ensure we consistently deliver an excellent product experience. Maintain a high quality bar to build a generalized agentic & AI evaluation system to power all product online and offline evaluations. Collaborate across disciplines, including researchers, engineers, product managers, and designers, to fill gaps and ship products. Qualifications Experience building agent applications with tool calling, MCP, and context engineering. Understanding how to make tradeoffs in using different models to achieve goals with cost-efficient and reliable system design. Self-motivated with a willingness to take ownership of platform components. 4+ years of industry experience. [Preferred] Experience with open source LLM post-training and evaluation. The cash compensation range for this role is $200,000 - $300,000. 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, equity may be part of the total compensation package. Benefits: Comprehensive health, dental, and vision insurance for you and your dependents. Includes a 401(k) plan. Create a Job Alert Interested in building your career at Perplexity AI? Get future opportunities sent straight to your email. Apply for this job * indicates a required field First Name * Last Name * Preferred First Name Email * Phone Resume/CV * Enter manually Accepted file types: pdf, doc, docx, txt, rtf Enter manually Accepted file types: pdf, doc, docx, txt, rtf Website LinkedIn Profile Will you now or in the future require visa sponsorship for employment? * Perplexity has an office-centric work model with 4 days per week in the office from the following locations: San Francisco, Palo Alto, or New York. Are you willing to come in 4 days per week? * If you are not based in any of these locations, are you open to relocation to either San Francisco, Palo Alto, or New York? * What are you looking for in your next role? * Why do you think you will be a fit for Perplexity? * How do you use AI in your daily life and engineering work? * If you want to architect and implement a deep research product on top of open sourced LLM, how will you do it? What’s the unique thing you want to watch out? What’s one trick you want to share about AI coding tools like Claude Code, or Cursor?

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