[Remote] Member of Technical Staff (Software Engineer, Applied AI)

Note: The job is a remote job and is open to candidates in USA. Perplexity is looking for an Applied AI Engineer to design, build, and iterate on cutting-edge agents powering their core experience in Perplexity Computer. In this role, you will apply state-of-the-art ML and LLM techniques to develop applications that enhance user experience and drive product improvements.ResponsibilitiesApply state-of-the-art ML and LLM techniques to solve problems spanning:Personalization (LLM memory, context summarization, retrieval and ranking)Contextual recommendations and Monetization applicationsBuild frontier agent capabilities on top of Perplexity ComputerBuild auto research harness for both offline and online techniques, designing experiments and metrics that provide deep insight into quality and impactOwn the entire model lifecycle from research to production: data analysis, modeling, evaluation, offline/online A/B testing, and iterative improvement and build autonomous harness for agent squad to explore different problem spacesCollaborate cross-functionally with engineers, PMs, data scientists, and designers to ensure our AI drives meaningful product improvementsStay at the forefront of ML/AI innovation by evaluating and incorporating emerging research and algorithms into the product lifecycleSkillsApply state-of-the-art ML and LLM techniques to solve problems spanning: Personalization (LLM memory, context summarization, retrieval and ranking); Contextual recommendations and Monetization applications; Build frontier agent capabilities on top of Perplexity ComputerBuild auto research harness for both offline and online techniques, designing experiments and metrics that provide deep insight into quality and impactOwn the entire model lifecycle from research to production: data analysis, modeling, evaluation, offline/online A/B testing, and iterative improvement and build autonomous harness for agent squad to explore different problem spacesCollaborate cross-functionally with engineers, PMs, data scientists, and designers to ensure our AI drives meaningful product improvementsStay at the forefront of ML/AI innovation by evaluating and incorporating emerging research and algorithms into the product lifecycle5+ years experience building and shipping robust AI products for large-scale, user-facing or data-driven productsStrong software engineering skills (Python, production-quality codebases, collaborative development) and experience using agentic coding tools for large scale parallel developmentsIn-depth experience with the full AI lifecycle: data analysis, rigorous evaluation, and ongoing monitoring/improvementProven collaborator and communicator; excels in high-velocity, cross-functional teamsCurious, driven by end-user/product impact, and passionate about advancing the state of applied ML and AIBS, MS, or PhD in Computer Science, Engineering, or related field (or equivalent experience)Experience with LLM context engineering or harness engineeringExperience in mid-training or post-training frontier open source modelsExperience in large scale user-centric and content-centric personalization challenges (user modeling, retrieval, content ranking, etc)Company OverviewPerplexity is an AI-powered platform that retrieves, analyzes information from the web to deliver structured answers with cited sources. It was founded in 2022, and is headquartered in San Francisco, California, USA, with a workforce of 201-500 employees. Its website is https://www.perplexity.ai.Company H1B SponsorshipPerplexity has a track record of offering H1B sponsorships, with 3 in 2026, 12 in 2025, 7 in 2024, 2 in 2023. Please note that this does not guarantee sponsorship for this specific role.