Staff+ Research Engineer, RL Data Platform

Highlights

• Build systems producing human data Claude learns from daily.
• Ship feedback interfaces used by thousands of expert annotators.
• Turn researcher ideas into training-ready data within days.

What they offer

• Competitive compensation and benefits
• Optional equity donation matching
• Generous vacation and parental leave
• Flexible working hours
• Lovely office space for collaboration

Ideal candidate

Full-stack owner who treats researchers as users, builds for reliability first, and cares deeply about data quality and AI safety.

Requirements

• Strong full-stack engineering skills with production experience
• Experience designing and operating backend services and data pipelines
• Track record owning projects end-to-end from ambiguous brief to production
• Comfort working directly with technical stakeholders with changing needs
• Effective use of AI tools in day-to-day work
• Care about societal impacts of work