AI Training Experts - Barcelona, Spain

Role overview This opening recruits skilled professionals in Barcelona, Spain to join a paid, global participant network focused on training and evaluating modern AI models. The work is fully remote, self-employed, and structured around discrete paid tasks issued by AI research teams. Participants provide the human judgment and feedback that underpin improvements in model accuracy and alignment.

Responsibilities - Work through AI training assignments that involve analyzing, editing, and producing written annotations - Assess model outputs and rate how well AI systems handle specific tasks and prompts - Help refine cutting-edge AI models by supplying rigorous human-in-the-loop data - Stay focused for the duration of each task, which can run up to one hour of uninterrupted work - Adhere to researcher-provided rubrics so that data collected remains consistent and trustworthy

Requirements - Demonstrable, verifiable experience as an AI trainer or in similar annotation, evaluation, or data quality work - Readiness to take a short skills assessment, generally around 10–15 minutes, before joining the pool - High attention to detail and stamina for sustained concentration on complex tasks - Stable, high-speed internet connection and a personal computer suitable for the workload - Self-employed engagement with the ability to self-declare earnings as required - A PayPal account to receive payment from client researchers

Benefits and work setup - Competitive hourly rates from researchers, commonly up to about $25 per hour per task - Remote-first setup with the freedom to set your own hours - Lightweight onboarding, often completable shortly after passing the assessment - No office requirement and no fixed shift pattern