Location
Remote
Job Type
Full-time
Posted
June 06, 2026
Job Description
Role Overview
Rex.zone is hiring for remote, full-time data labeling work supporting AI/ML training and evaluation pipelines. You will create high-quality labeled datasets and perform structured evaluations that improve model performance across real-world workflows.
What You’ll Do
- Produce accurate labels for NLP tasks (classification, summarization, intent labeling) and Named Entity Recognition (NER)
- Contribute to RLHF workflows by ranking/scoring model outputs using defined rubrics
- Perform prompt evaluation, response grading, and factuality/safety checks for LLM evaluation
- Execute QA evaluation: audits, error taxonomy tracking, and resolving label disagreements
- Follow annotation guidelines with high consistency and document edge cases to improve clarity
Requirements
- Experience in data labeling/data annotation or AI/ML evaluation workflows
- High attention to detail and strong gui...