AI Machine Learning Engineer - Personalization 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 experienced Applied AI&ML Engineers to help build next generation of personalization experience. In this role, you'll focus on improving user happiness on Perplexity by making the content highly relevant, personal and inspiring. Responsibilities Architect and build the next generation of personalization platform and models which serves as the foundation of highly personalized Perplexity user journey Build effective data and models for LLM content and convert them into personalized ML signals which drives customized recommendation Work across stack to deliver various types of models (LLM to DNN) to end users in a scalable and performant way\ Partner with product managers and partner team engineers to ensure fast and high quality deliverable to end users Qualifications Strong programming skills with the ability to work across the stack in a typical recommendation system or LLM stack Experience in training DNN and Transformer architecture models Experience in working with other LLM APIs to complete tasks like fine tuning, prompt mining or prototyping new ideas Understands how to make tradeoffs in using different models Self-motivated with a willingness to take ownership of tasks A passion for shipping quality products 4+ years of industry experience The 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, 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 * 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? * Select... 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? * Select... If you are not based in any of these locations, are you open to relocation to either San Francisco, Palo Alto, or New York? * Select... How do you use AI in your daily life and engineering work? * Why do you think you will be a fit for Perplexity? * Describe a project you worked on recently about Personalization / Deep Learning that you were most proud of? Tell us why. In order to build the best personalization product like Pinterest, Instagram and X, what do you think is the most important thing to get it right? If you want to build a recommender system from scratch, how do you plan to leverage LLM / Generative AI technologies to do it? U.S. Standard Demographic Questions We invite applicants to share their demographic background. If you choose to complete this survey, your responses may be used to identify areas of improvement in our hiring process. How would you describe your gender identity? (mark all that apply) Select... How would you describe your racial/ethnic background? (mark all that apply) Select... How would you describe your sexual orientation? (mark all that apply) Select... Do you identify as transgender? (select one) Select... Do you have a disability or chronic condition (physical, visual, auditory, cognitive, mental, emotional, or other) that substantially limits one or more of your major life activities, including mobility, communication (seeing, hearing, speaking), and learning? (select one) Select... Are you a veteran or active member of the United States Armed Forces? (select one) Select...

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