Perplexity AI

We are looking for an AI Inference to join our growing team. Our current stack is Python, C++, TensorRT-LLM, Kubernetes. You will have the opportunity to work on large-scale deployment of machine learning models for real-time inference. Responsibilities Develop APIs for AI inference that will be used by both internal and external customers Benchmark and address bottlenecks throughout our inference stack Improve the reliability and observability of our systems and respond to system outages Explore novel research and implement LLM inference optimizations Qualifications Experience with ML systems and deep learning frameworks (e.g. PyTorch, TensorFlow, ONNX) Familiarity with common LLM architectures and inference optimization techniques (e.g. continuous batching, quantization, etc.) Experience with deploying reliable, distributed, real-time model serving at scale (Optional) Understanding of GPU architectures or experience with GPU...

We are looking for an AI Inference to join our growing team. Our current stack is Python, C++, TensorRT-LLM, Kubernetes. You will have the opportunity to work on large-scale deployment of machine learning models for real-time inference. Responsibilities Develop APIs for AI inference that will be used by both internal and external customers Benchmark and address bottlenecks throughout our inference stack Improve the reliability and observability of our systems and respond to system outages Explore novel research and implement LLM inference optimizations Qualifications Experience with ML systems and deep learning frameworks (e.g. PyTorch, TensorFlow, ONNX) Familiarity with common LLM architectures and inference optimization techniques (e.g. continuous batching, quantization, etc.) Experience with deploying reliable, distributed, real-time model serving at scale (Optional) Understanding of GPU architectures or experience with GPU...

Perplexity is looking for an experienced Revenue Operations Analyst to join our small team revolutionizing the way people search and interact with the internet. The Finance and Accounting team at Perplexity is playing a critical role in defining and driving strategic and financial processes across the company and is looking for a self-motivated and detail-oriented individual who can prioritize effectively in a fast-paced environment. You will be working closely with the Controller and Head of Finance to build out our AR processes and develop a seamless billing experience for our customers and partners. You will play a key role in onboarding new enterprise customers, managing complex billing cycles, and driving collections. Responsibilities Facilitate partnerships billing & operational requirements, sourcing the necessary data to run accurate billing in a timely manner Manage onboarding of new enterprise customers, completing new vendor questionnaires, providing...

We're looking for a dynamic and highly organized Recruiting Coordinator! In this role, you will be responsible for ensuring a smooth and efficient hiring process as we scale our team. Contract Details: Rate: $40 - $45 per hour Hours: 40 hours per week Hybrid work schedule: In-office M/W/F (San Francisco) Responsibilities Schedule candidate interviews and handle logistics Manage the candidate's experience throughout their interview journey Initiate and contribute to projects that will improve and scale our recruiting processes Ensure an exceptional candidate experience and constantly think about ways to drive improvements Assist with general recruiting tasks, including administrative tasks as assigned Provide support to the recruiting team as needed Qualifications 1-3 years of experience as a recruiting coordinator, in a fast-paced environment Proactive mindset with the ability to take initiative without being...

We are seeking an organized and proactive Recruiting Coordinator to join our team in London! This role involves supporting the recruitment process by coordinating interviews, managing candidate communications, and ensuring a seamless experience for both candidates and hiring managers. The ideal candidate will have excellent organizational skills, attention to detail, and a passion for talent acquisition.  Although coordination will be the main responsibility, you will also have the opportunity to source candidates. Responsibilities Interview Coordination: Schedule and manage interviews (virtual or in-person), ensuring all parties are informed and prepared. Candidate Communication: Serve as the primary point of contact for candidates, providing updates and answering questions throughout the recruitment process. Applicant Tracking System (ATS) Management: Maintain accurate records of candidate progress in the ATS and ensure data integrity. Process...

Perplexity is looking for a Quality Assurance Automation Engineer to join our small team revolutionizing the way people search and interact with the internet. Your passion and diligence will be critical to ensure we deliver a high quality product. You will work closely with product management, design, and engineering. The ideal candidate should have strong communication and writing skills, eagerness to learn, and attention to detail. Responsibilities Design and develop automation frameworks from scratch Write clear, concise automated test scripts that cover a wide range of scenarios Maintaining and debugging automated test scripts Detect bugs and UI issues on a variety of devices, browsers, and operating systems Work with product management to set up proper QA testing processes Detect performance problems by benchmarking against similar products Work with support to understand and reproduce common user issues Work with engineering to...

Perplexity is looking for a highly skilled Senior C++ Developer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack. Responsibilities Develop new types of search index storage, including streaming and batch data processing systems in a high-load environment capable of handling billions of pages Build new core search components, including algorithms for efficient retrieval and ranking Push the limits of hardware performance Tackle challenges in multithreading, concurrency, and system-level optimization Optimize subsystems for reliable and consistent data replication within the core search stack Qualifications 10 years of experience developing backend systems using C++ 6 years of experience designing and implementing scalable, high-performance...

Perplexity is seeking an experienced Senior Machine Learning Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking. Responsibilities Relentlessly push search quality forward—through models, data, tools, or any other leverage available Architect and build core components of our search platform and model stack Train and evaluate retrieval, ranking and classification models, including LLMs Deploy models - from boosting to LLMs - in a scalable and performant way Build and optimize RAG pipelines for grounding and answer generation Collaborate with Data, AI, Infrastructure and Product teams to ensure fast and high quality delivery Qualifications Deep understanding of search and retrieval systems, including quality evaluation principles and metrics Proven track record with large-scale search or recommender systems Hands-on experience with transformer-based models for dense...

Perplexity AI is looking for an Office/People Ops Coordinator to join our small team revolutionizing the way people search and interact with the internet. You will play a crucial role in maintaining a positive and productive workplace environment as well as effectively integrating new team members. You will oversee daily office operations, manage administrative tasks, assisting with onboarding, organising events and contribute to shaping and preserving our company culture. The ideal candidate is organized, proactive, and dedicated to promoting a culture of collaboration, respect, and inclusivity. Note:  This is a part-time role (10AM-2PM M-F) Responsibilities Office Operations Management: Ensure smooth day-to-day operations of the office Manage office supplies inventory and place orders as needed Handle incoming and outgoing correspondence and mail Maintain office equipment and troubleshoot any issues Organize team meals and main the kitchen...

Perplexity is looking for an experienced Data Scientist 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 and implement data pipelines that produce datasets to help the ML team improve search quality Qualifications 4+ years of experience working as a data scientist or in a related role Experience working on search-related products, with emphasis on designing online metrics and analyzing A/B experiments Strong Python skills (expected to write production-grade...

We are hiring a Growth Manager to drive feature launches, go-to-market, and product marketing. You will work closely with the product, engineering, design, and brand teams to bring to life new features. Responsibilities  Productize our feature launch process that clearly and effectively reaches our audience and drives adoption Develop a deep understanding of Perplexity’s key user segments and the most effective channels to Collaborate closely with our product, brand, business, and communications teams to create the defining category of knowledge discovery Obsess over every user communication, key positioning statement, and marketing copy to make Perplexity accessible to non-technical and new-to-AI audiences. Lead vertical campaigns to bring specific use cases to life — from cooking to coding. Qualifications 5+ years of experience working at a fast-paced consumer technology company You’ve shipped a lot of features. You’ve made...

Perplexity is looking for an experienced Accounting Manager to join our small team revolutionizing the way people search and interact with the internet. The Finance and Accounting team at Perplexity is playing a critical role in defining and driving strategic and financial processes across the company and is looking for a self-motivated and detail-oriented individual who can prioritize effectively in a fast-paced environment. You will be working closely with the Controller and Head of Finance to build out Perplexity’s Finance and Accounting functions and processes. You will be expected to be able to think high-level about existing processes and also roll up your sleeves to institute new ways of doing things. This position will be pivotal in the day-to-day accounting operations and supporting the scalability of a rapidly growing organization. Responsibilities Establish and implement revenue recognition policies and procedures, ensuring compliance in accordance with...

Perplexity is looking for a highly skilled Senior or Expert C++ Developer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack. Responsibilities Develop new types of search index storage, including streaming and batch data processing systems in a high-load environment capable of handling billions of pages Build new core search components, including algorithms for efficient retrieval and ranking Push the limits of hardware performance Tackle challenges in multithreading, concurrency, and system-level optimization Optimize subsystems for reliable and consistent data replication within the core search stack Qualifications   5+ years of hands-on experience in C++ development Knowledge of Python or other scripting languages Passion for...

Perplexity is looking for a highly skilled Senior or Expert Java Developer to join our Search Core team. This role is critical to building next-generation search products and technologies. You will help drive key decisions around the architecture, design, and implementation of foundational components in our technical stack. Responsibilities Design and implement new core search components, including a high-load ranking service, a distributed search coordination layer, and a fast-updating master data storage system Build and optimize streaming and batch data processing subsystems for analytics and search index creation Integrate with data science solutions for search index data analysis Push the limits of hardware performance Solve challenges in JVM tuning, concurrency, and system-level performance optimization Optimize subsystems for reliable and consistent data replication within the core search stack Qualifications 5+ years of...

The APAC User Operations team serves as the frontline for delivering Perplexity AI's industry-leading search capabilities to enterprise clients and individual users across Asia-Pacific markets. This team collaborates with Product, Engineering, Localization, and Technical Success departments to resolve complex technical issues while adapting support frameworks to regional service expectations. Responsibilities Strategic Leadership & Team Development Create and lead the vision and strategy for APAC Customer Success and Support, leveraging the function as a strategic asset to drive retention and revenue growth Build, mentor, and develop a high-performing team across support and success functions Establish strong partnerships with global teams to ensure alignment and consistency in service delivery while accounting for regional nuances. Foster an 'advocacy' culture that places emphasis on delighting customers in everything we do...

We are seeking a talented Customer Success Engineer to join our team and collaborate directly with our strategic enterprise accounts. In this role, you will be at the forefront of solving challenging technical problems faced by our customers. As a key member of our technical troubleshooting team, you will provide expert guidance to both our customers and internal teams on complex issues within our environment. Your contributions will be vital in building knowledge within the team and driving strategic initiatives for organizational and process improvements. Responsibilities Serve as the dedicated technical resource and advocate for our most important API and product customers, providing in-depth troubleshooting assistance and educating them on optimal use of our platforms. Become one of the foremost technical and troubleshooting experts for our API and product offerings at Perplexity AI. Partner with the Enterprise, Mobile, and API teams to resolve issues,...

Perplexity is looking for an experienced Full Stack Engineer to accelerate the development of advanced search technologies by building powerful internal tools to assess quality, run experiments, and explore search system behavior. Tech Stack: NextJS | TypeScript | Python | Docker | AWS Responsibilities Collaborate with Search, AI, Data and Product teams to identify tooling needs Build advanced toolsets to empower AI/ML engineers and data scientists working on Search Quality Research existing solutions and develop custom ones where needed Design and develop architecture that unifies new tools with existing pipelines and LLM- or agent-based evaluation frameworks Qualifications Strong programming skills with the ability to work across the full stack Self-driven with a bias toward ownership and delivery Solid understanding of data and experimentation workflows Proven track record in building sophisticated internal tools A...

Perplexity is seeking an experienced Machine Learning Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking. Responsibilities Relentlessly push search quality forward—through models, data, tools, or any other leverage available Architect and build core components of our search platform and model stack Train and evaluate retrieval, ranking and classification models, including LLMs Deploy models - from boosting to LLMs - in a scalable and performant way Build and optimize RAG pipelines for grounding and answer generation Collaborate with Data, AI, Infrastructure and Product teams to ensure fast and high quality delivery Qualifications Deep understanding of search and retrieval systems, including quality evaluation principles and metrics Proven track record with large-scale search or recommender systems Self-driven, with a strong sense of ownership and execution...

Perplexity is looking for a dynamic and innovative attorney to join our small team to help advance the business, improve the products we’re building, and revolutionize the way people search and interact with the internet. This unique role offers significant responsibility to apply and strengthen your legal experience and offers growth potential in other areas of an in-house practice group. About the Opportunity: This is a unique role at Perplexity AI within our rapidly growing AI technology company. This role will have a variety of responsibilities but we're seeking a sharp, innovative product counsel who combines strong business judgment with practical problem-solving abilities. You will assist with legal initiatives related to our AI answer engine, models, and technologies. You'll be responsible for working closely with our AI, engineering, and product teams in the development and release of new products and services. The ideal candidate brings intellectual curiosity...

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. Responsibilities Design, build, and operate monitoring and detection systems to identify and prevent fraudulent behaviors and abuse Perform adversary hunting to detect abuse and misuse of our products and services Analyze how our products and services are being misused or abused Track and mitigate cost impacts of fraud and abuse across our technology stack Research and anticipate emerging abuse techniques to stay ahead of evolving threats Generate actionable intelligence reports on new attack vectors, vulnerabilities, and threat actor tactics targeting LLM...