Full-Stack Software Engineer, Design

About the Role

Join a growing team building AI infrastructure and tools for creating and evaluating AI training environments. You will combine front-end engineering and product design to make complex agent workflows clear, useful, and actionable.

What You'll Do

• Design and build interfaces across a product platform and marketplace, from early concepts through launch.
• Make agent runs, evaluation results, reward signals, and quality feedback understandable and actionable.
• Partner with research and engineering to turn reinforcement learning and evaluation workflows into useful tools.
• Talk with users, observe their challenges, and improve the product based on their feedback.
• Develop thoughtful interaction patterns and uphold a high bar for usability, visual quality, and implementation.

What We're Looking For

• At least 3 years in a design engineering, product design, or similar role shipping product interfaces.
• Experience primarily as a full-stack engineer with design experience, including front-end skills and a track record of turning designs into working interfaces.
• A portfolio demonstrating strong visual design and shipped product work improved through user feedback.
• Technical education or strong technical fundamentals, with the ability to explain complex concepts clearly.
• Experience collaborating closely with engineers and researchers.
• Developer tools, data-rich products, research software, AI agents, evaluation, reinforcement learning, or training data experience is useful.
• Experience building reusable interface patterns or working independently in an early-stage company is a plus.

Compensation & Benefits

Base salary: $130,000 to $225,000 USD annually. Visa sponsorship is available.

Location

On-site in San Francisco, California, with remote options available.