Explore full-time remote AI Generalist jobs in Barcelona for 2026 at Rex.zone. As an AI Generalist, you will power LLM training pipelines through expert data labeling, RLHF (Reinforcement Learning from Human Feedback), and comprehensive QA evaluation. This role bridges the gap between complex engineering workflows and high-quality training data.

Whether you specialize in natural language processing (NLP), computer vision annotation, or prompt evaluation, these mid-senior remote roles offer the opportunity to shape the future of artificial intelligence. Join leading AI labs and tech startups by ensuring strict annotation guidelines compliance and driving continuous model performance improvement.

AI Data Operations Generalist

Title: AI Data Operations Generalist

Date: 25-02-2026

Company: Rexzone

Country: ES

Remote Type: Remote

Employment Type: FULL_TIME

Experience Level:



Mid-Senior

Industry: Technology

Job Function: Engineering

Skills: Data Annotation, Computer Vision, Content Safety, QA Evaluation, Machine Learning

Salary Currency: USD

Salary Min: 63360

Salary Max: 126720

Pay Period: YEAR

Join our integral team as an AI Data Operations Generalist. You will manage end-to-end LLM training pipelines, focusing on computer vision annotation and rigorous QA evaluation. Rex.zone connects you with top-tier tech startups and annotation vendors seeking professionals who can guarantee high training data quality. This remote role is perfect for mid-senior experts dedicated to advancing AI safety and model accuracy.

📌 Senior AI Generalist (España)
🏢 Rex.zone
📍 España