Rex.Zone in Madrid is seeking remote data annotators to join our real-world AI/ML labeling programs. You will follow strict rubrics and work on multilingual NER, content safety labeling, and image-text alignment tasks in a fully remote, full-time
Rex.Zone is hiring a Remote Data Annotator to produce and validate labeled datasets for AI/ML systems across NLP, computer vision, and multimodal workflows. You will follow rubrics, resolve edge cases, and support LLM training pipelines through RLHF,
Job Title: Spanish Quality Assurance Lead Job Type: Contract Location: Remote About This Role In this hourly, remote contractor role, you will work as a Spanish Quality Assurance Lead to oversee quality, consistency, and trainer performance
Job Description Job Title: History Quality Assurance Lead Job Type: Contract Location: Remote About This Role In this hourly, remote contractor role, you will work as a History Quality Assurance Lead to oversee quality, consistency, and
Remote Data Labeling Jobs in Madrid (Fully Remote) Rex.Zone is hiring for a full-time, fully remote data labeling role focused on training-data creation and quality control for AI/ML systems. You will label and evaluate text, images,
Job Title: Spanish Content Editing Expert Job Type: Contract Location: Remote Job Summary: As a Spanish Content Editing Expert - Remote, youll apply your expertise to help train next-generation AI systems. Your work will shape how
YO IT Consulting is seeking a History Quality Assurance Lead for a remote, hourly contract role. You will oversee quality across history-focused AI training projects, reviewing AI-generated content and QA work, and providing precise feedback. You
YO IT Consulting seeks a Spanish Content Editing Expert for remote contract work. You will train AI systems by providing high-quality Spanish input, ensuring accurate translation, tone, and cultural relevance. You’ll guide and QA a remote
Toloka AI supports frontier model post-training by building domain-specific reinforcement learning environments, tasks, and evaluation frameworks designed by real practitioners. Mindrift, powered by Toloka — a leading enterprise AI and machine learning data partner since 2014
Remote Data Annotation Jobs Madrid (Full-Time, Remote) Join production-grade AI/ML training workflows by labeling and evaluating data used to improve model performance across NLP, computer vision, and content safety systems. You will follow strict rubrics and maintain
Rex.Zone is hiring a full-time Remote Data Annotator to produce and validate labeled datasets that improve AI/ML systems across NLP, computer vision, and multimodal workflows. You will follow detailed rubrics, resolve edge cases, and support LLM training