Senior Full-Stack Software Engineer

Responsibilities

• Design and build product interfaces from early concepts through launch.
• Make agent runs, evaluation results, reward signals, and quality feedback understandable and actionable.
• Partner with research and engineering teams to turn reinforcement learning and evaluation workflows into useful tools.
• Talk with users, identify areas of difficulty, and improve the product based on feedback.
• Develop reusable interaction patterns while maintaining high standards for usability, visual quality, and implementation.

Requirements

• At least 3 years of experience in design engineering, product design, or a similar role shipping product interfaces.
• Front-end engineering skills and experience turning designs into working interfaces; full-stack product engineering experience is relevant.
• A portfolio of shipped design-engineering work and a record of improving products through user feedback.
• Technical education or strong technical fundamentals, plus experience working closely with engineers and researchers.
• Strong product and interaction design judgment and the ability to explain technical concepts clearly.
• Experience with developer tools, data-rich products, research software, AI agents, evaluations, reinforcement learning, or training data is useful.

Benefits

• Salary range of $130,000 to $225,000 USD annually.
• Visa sponsorship is available.
• Primarily on-site in San Francisco, California, with some remote arrangements available.