Senior Software Engineer – AI Data Infrastructure

ABOUT THE ROLE Our client is an early-stage AI infrastructure company building the training data and evaluation systems used by leading frontier AI labs. The company designs high-signal datasets and rigorous evaluations that help improve the next generation of AI models. As a Senior Software Engineer, you will have end-to-end ownership of projects across full-stack and platform engineering. You will build human-in-the-loop platforms, fraud detection systems, scalable data infrastructure, and annotator workflows. You will work directly with leading AI labs and gain exposure to emerging model capabilities before they reach the broader market. As an early engineering team member, you will have significant influence over core systems, technical decisions, and product direction. KEY RESPONSIBILITIES - Design and build scalable systems, with a focus on the company's expert platform. - Own projects end-to-end, from technical design through implementation and deployment. - Build and improve infrastructure supporting AI training data and evaluation. - Develop human-in-the-loop platforms, annotator workflows, and related tooling. - Solve complex scalability, reliability, and distributed syst... Click Apply to read the full job description.