Founding Engineer (AI/ML)

ABOUT THE ROLE As a Founding Engineer focused on AI and machine learning, you will own the intelligence layer of an AI recruiting marketplace. You will build recommendation, ranking, retrieval, and LLM-powered matching systems that help connect candidates with relevant roles. WHAT YOU'LL DO - Own recommendation, ranking, and retrieval systems from design through production. - Build and improve LLM-powered matching features, measuring their impact on candidate-role alignment. - Take product features from problem definition to production and ship improvements at a rapid pace. - Architect and maintain the data pipelines and production services that support machine learning models. - Work directly with company leadership to turn product goals into deployed systems. WHAT WE'RE LOOKING FOR - Two to five years of experience building and shipping end-to-end software features in production. - Hands-on experience building recommendation, ranking, or machine learning-based matching systems for real users. - Experience building LLM API-powered features and shipping machine learning models or products to production. - Strong production engineering skills in TypeScript or Python, along with experience using PyTorch, TensorFlow, or equivalent frameworks. - Experience building and maintaining production data pipelines and services, with strong computer science fundamentals. - More than six months of substantive work experience in the United States, plus a substantive machine learning role at a recognized product company or credible startup. - Comfort working in a fast-paced startup environment with frequent iteration and daily shipping. - Demonstrated technical achievement through strong open-source contributions, notable personal projects, or comparable accomplishments. - React experience is helpful, as is familiarity with Supabase, Prisma, database design, Typesense or similar search infrastructure, embeddings, vector search, and workflow automation tools. COMPENSATION & BENEFITS Base salary is $130,000 to $170,000 annually, plus founding-hire equity. Visa sponsorship is available for candidates eligible for a supported sponsorship route. LOCATION On-site in San Francisco, California, six days per week. Candidates must be based in San Francisco or willing to relocate.