Perplexity serves tens of millions of users daily with reliable, high-quality answers grounded in an LLM-first search engine and specialized data sources. The Answer Quality team ensures that our prompts, tools, search, and specialized datasets, combined with both frontier and in-house models, create the best possible experience for our users. As our product evolves, our evaluations must remain fast, accurate, and actionable. In this role, you will build the data flywheel that serves teams across Perplexity. Responsibilities Build the systems and pipelines that enable Search, Product, and ...

Perplexity serves tens of millions of users daily with reliable, high-quality answers grounded in an LLM-first search engine and specialized data sources. The Answer Quality team ensures that our prompts, tools, search, and specialized datasets, combined with both frontier and in-house models, create the best possible experience for our users. As a Data Scientist/Engineer on this team, you will derive online signals from user interactions to bridge the gap between changes in answer quality and observed user behavior. Responsibilities Discover and validate online signals from user interaction...

Perplexity serves tens of millions of users daily with reliable, high-quality answers grounded in an LLM-first search engine and our specialized data sources. We aim to use the latest models as they are released, but the intelligence frontier is a jagged one, and popular benchmarks do not effectively cover our use cases. In this role, you will build specialized evals to improve answer quality across Perplexity, covering search-based LLM answers and other scenarios popular with our users. Responsibilities Architect and maintain automated evaluation pipelines to assess answer quality across Pe...

Perplexity is seeking experienced Full Stack Engineers to help revolutionize the way people search, learn, and get things done online. In this role, you'll translate cutting-edge AI advances into product experiences that drive activation, engagement, and revenue across millions of users. Our tech stack includes Python, Go, Rust, TypeScript, React, FastAPI, PostgreSQL, Redis, Docker, vLLM, and AWS. Roles and teams at Perplexity are fluid. By applying to this position, you will be eligible to join teams across Perplexity Engineering. During the interview process, we look forward to learning ...

Perplexity is seeking an experienced Full Stack Engineer to help revolutionize the way people search, learn, and get things done online. In this role, you'll translate cutting-edge AI advances into product experiences that power our financial operations, revenue systems, and business intelligence infrastructure. Our tech stack includes Python, Go, Rust, TypeScript, React, FastAPI, PostgreSQL, Redis, Docker, vLLM, and AWS. Roles and teams at Perplexity are fluid. By applying to this position, you will be eligible to join teams across Perplexity Engineering. During the interview process, we ...

Perplexity is looking for an experienced data analyst to accelerate the development of advanced search technologies. You will identify robust and sensitive signals from user behavior to help us gather insights from A/B experiment data more efficiently. Responsibilities Develop data-driven insights from user behavior to inform our product roadmap and accelerate adoption Formulate hypotheses and validate them by designing, running, and analyzing A/B tests Determine appropriate metrics and visualizations for tracking, and implement them in dashboards Design new pipelines that will help to deliv...

Perplexity is looking for experienced Infrastructure Engineers to join our small team revolutionizing the way people search and interact with the internet. You will be responsible for leading the design, implementation, and scaling of tools, systems, and platforms that empower web, mobile, and browser engineers to build state-of-the-art products. You’ll play a critical role in enabling our product, AI, and developer teams to innovate quickly while ensuring reliability, security, and performance at scale. Tech Stack: Python | Go | TypeScript | PostgreSQL | DynamoDB | Redis | FastAPI | React |...

Perplexity is seeking full stack applied AI engineers to revolutionize the way people search and interact with information online by building next generation AI products and frontier models. In this role, you'll build scalable and innovative E2E solutions which powers Perplexity’s wide span of AI applications, including discovery, research agents, eval platforms, monetization and integration with different 3rd party and Sonar LLMs. Our tech stack includes Python, Go, Rust, TypeScript, React, FastAPI, PostgreSQL, Redis, Docker, vLLM, and AWS. Roles and teams at Perplexity are fluid. By appl...

Perplexity is seeking a Research Engineering Manager to lead the team of all-star AI researchers and engineers responsible for developing the models that drive our products. Our team has developed some of the most advanced models for agentic research, query understanding, and other domains that require accuracy and depth. As we expand our userbase and portfolio of product surfaces, our in-house models are increasingly critical to providing a premium, high-taste experience for the world’s most sophisticated users. You will dive into our rich datasets of conversational and agentic queries, lev...

About the Role We are looking for an Inference Engineering Manager to lead our AI Inference team. This is a unique opportunity to build and scale the infrastructure that powers Perplexity's products and APIs, serving millions of users with state-of-the-art AI capabilities. You will own the technical direction and execution of our inference systems while building and leading a world-class team of inference engineers. Our current stack includes Python, PyTorch, Rust, C++, and Kubernetes. You will help architect and scale the large-scale deployment of machine learning models behind Perplexity...

Perplexity is looking for a Model Behavior Architect to help shape our answer engine. This role collaborates with our research, design, and engineering teams to align model behavior with product goals. Responsibilities Design, refine, and implement context engineering strategies to guide model behavior across use cases. Identify inconsistencies in model outputs through well-designed research and evaluation projects. These projects may be either for internal or production-facing systems. Develop automated and semi-automated pipelines for evaluating agent effectiveness at scale. Stay curre...

Perplexity AI is looking for an experienced QA Engineer to join our small team revolutionizing the way people search and interact with the internet. You will be responsible for building and expanding the Perplexity Android app. The ideal candidate should have strong QA skills, an interest in search and large language models, and a passion for delivering a great UX backed by a quality UI. Responsibilities Testing a performant native Desktop and Android app that millions of users around the world enjoy using. Work closely with product teams to implement novel mobile/desktop experiences. Work...

Perplexity is looking for an experienced Backend Engineer to join our small team revolutionizing the way people search and interact with the internet. You will be responsible for leading design, implementation, and scaling of backend systems that power web, mobile, and browser products. Tech Stack: Python | Go | Rust | TypeScript | FastAPI | PostgreSQL | Redis | Docker | vLLM | AWS Teams Hiring File Platform The File Platform team builds and owns the unified, scalable, and secure file layer that powers attachments, syncing file drives, and generated file assets across all Perplexity products...

About Perplexity 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. Tod...

Perplexity is looking for a Search Machine Learning Engineer Intern to help build the next generation of advanced search technologies, with a focus on retrieval and ranking. You will work closely with experienced engineers to improve search quality, experiment with new models, and ship features that directly impact how users search and discover information. Internship program: 12 - 24 weeks, full-time, in-person in the Belgrade office. Responsibilities: Contribute to experiments that improve search quality through better models, data usage, and evaluation tools, under the guidance of senior ...

Internship Program Berlin Internship program: 12 - 24 weeks, full-time, in-person in the Berlin office. Responsibilities Relentlessly push search quality forward — through models, data, tools, or any other leverage available. Train, and optimize large-scale deep learning models using frameworks like PyTorch, leveraging distributed training (e.g., PyTorch Distributed, DeepSpeed, FSDP) and hardware acceleration, with a focus on retrieval and ranking models. Conduct research in representation learning, including contrastive learning, multilingual, evaluation, and multimodal modeling for search ...

Perplexity is seeking a Quality Assurance Architect to own and shape the quality engineering strategy for our products as we revolutionize the way people search and interact with the internet. In this role, you will be the technical leader responsible for designing scalable test architectures, driving automation initiatives, and embedding quality into every stage of the development lifecycle. You will partner closely with product management, engineering, and support teams—not just to find bugs, but to architect systems and processes that prevent them. The ideal candidate combines deep techni...

About Perplexity 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. Tod...