Senior AI Generalist — Remote NLP & Model Evaluation

Rex.zone; España; Remote; EUR 45,000 - 65,000; Full time

Job summary

Rex.zone in Spain offers a fully remote AI Generalist role focused on data labeling, RLHF evaluation, and prompt assessment to enhance large language model performance.

You will work across multilingual workflows, requiring strong command of English and Spanish, and contribute to high-quality labeling, QA, and content safety labeling for AI labs and startups. Remote-friendly opportunities span freelance to full-time.

Responsibilities

• Prompt evaluation for RLHF and model alignment.
• Content safety labeling and quality assurance.
• Craft high-quality responses for RLHF in multilingual settings (EN/ES).

Job description

Rex.zone in Spain offers a fully remote AI Generalist role focused on data labeling, RLHF evaluation, and prompt assessment to enhance large language model performance.

You will work across multilingual workflows, requiring strong command of English and Spanish, and contribute to high-quality labeling, QA, and content safety labeling for AI labs and startups. Remote-friendly opportunities span freelance to full-time.