AI Training Experts - Barcelona

Role overview This role invites experienced professionals to join a paid contributor pool that trains and evaluates cutting-edge AI models. Based in Barcelona and operating fully remote, the position is structured as flexible, task-based contract work for self-employed participants. Contributors work directly with AI researchers and developers by completing short, paid assignments that shape how language and reasoning systems are trained.

Responsibilities - Complete AI training tasks such as analyzing, editing, and writing annotations on model outputs - Judge and provide structured feedback on how well AI systems perform across different prompts and scenarios - Contribute to improving next-generation AI models through consistent, high-quality human input - Maintain focus during individual tasks that can require up to one hour of uninterrupted work - Follow task-specific guidelines provided by research teams to ensure reliable data quality

Requirements - Verifiable professional experience as an AI trainer or in a closely related annotation, evaluation, or content review role - Willingness to complete a brief skills verification test, typically 10–15 minutes long - Strong attention to detail and the ability to concentrate on complex, nuanced tasks for sustained periods - A reliable, fast internet connection and access to a suitable computer - Comfort with self-employed status and a willingness to self-declare earnings - A PayPal account to receive payments from research clients

Benefits and work setup - Pay rates set by researchers tend to reach up to roughly $25 per hour per completed AI task - Fully remote, self-directed schedule with flexible hours - Short onboarding window after the assessment is passed - Work-from-home setup with no fixed shift requirements