Senior AI Engineer

About the company Our client is a fast-growing software company. The role Raydar is recruiting for this role on behalf of our client. Lead the applied AI work for a software product, covering model integration, data flows, quality measurement and release. This is a hands-on engineering position in production code, and the person hired will be among the first engineers shaping technical direction. What you'll do - Own the full lifecycle of AI-driven features, from design through deployment and ongoing support. - Create automated quality checks ahead of feature work so that model changes are validated before release. - Tune response times and running costs so the system performs well under real usage volumes. - Investigate unclear product issues and pinpoint whether the cause lies in the model, the data or the interface, then fix it. - Release to production every week and track how changes behave with live users. - Set early architectural direction that the platform will build on for years. - Act as the go-to colleague for model-related issues across the team. Requirements What we're looking for - Degree in Computer Science, ideally from a highly ranked university. - Solid practical programming ability in Python for backend AI and ML services. - Track record of creating evaluation tooling for language models that detected quality regressions. - Prior delivery of an AI or ML feature that real users depended on in production, beyond prototypes or internal demos. - Background at an organization known for a demanding engineering standard. - Experience at a growth-stage startup, ideally one with venture investors. Bonus points - Publicly visible technical contributions such as open-source projects, publications or personal builds. - Hands-on experience with machine learning or model tuning. - Familiarity with e-commerce or marketplace products. Benefits Compensation and benefits - Base salary: USD 200,000 to 400,000 per year - Equity Location and work model - San Francisco, CA, United States - On-site - Full-time