Exa is an applied AI lab building a search engine unlike the world has ever seen. We build massive-scale infra to crawl the entire web, train state-of-the-art embedding models to process it, and design super high performant vector databases to retrieve over it. We now power search for Cursor, Cognition, HubSpot, and over 400,000 developers and have raised $350m from Lightspeed, Benchmark, and a16z. Our ultimate goal is to build perfect search over all the world's information, far beyond Google. If you want to build massive-scale ML systems that will define the way the new AI world consumes information, this is the place for you. As a Full Stack Engineer at Exa, you'll work on everything developers and agents touch when they use our product. That includes our developer dashboard, APIs, SDKs, and the rest of our developer platform. WHO YOU ARE - You're a strong generalist engineer, comfortable owning the product lifecycle from design to deploy - You're fluent in TypeScript, with a strong eye for front-end design, and comfortable learning new tools and technology as the work calls for it - You've designed and maintained backend APIs that real users and customers depend on - You've shipped products for LLMs, AI agents, or other systems used by many people - You care about the problem of finding high quality information and recognize how important this is for the world - You have 3+ years of fullstack engineering experience WHAT YOU COULD DO - Build agentic onboarding flows that quickly get developers (and their agents) from sign-up to first integration - Shape the Exa API and SDKs into the cleanest, most ergonomic agentic search platform in the ecosystem - Architect the API gateway that every Exa request flows through - Build account, billing, permissions, and provisioning surfaces our enterprise customers need LOGISTICS - Location: This is an in-person opportunity in San Francisco. - Visas: We're happy to sponsor international candidates (e.g., STEM OPT, OPT, H1B, O1, E3). While we cannot guarantee your visa, we have historically been successful in sponsoring candidates from all over the world. If you receive an offer, our team will work hard to get you a visa. - Benefits: We offer premium healthcare benefits (medical, dental, vision), fertility benefits, 16 weeks of fully paid parental leave for all new parents, and a monthly wellness stipend to all of our employees. Exa is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, creed, color, religion, sex, sexual orientation, gender identity or expression, national origin, disability, age, veteran status, marital status, pregnancy or related conditions, criminal histories consistent with applicable law, or any other basis protected by applicable law.