Senior Data Labeling Jobs in Ottawa (Remote)

Overview Rex.zone is hiring for Senior Data Labeling roles supporting AI/ML training workflows end to end, including data labeling, RLHF, prompt evaluation, QA evaluation, and training data quality audits for large language model evaluation and computer vision annotation.

This is a full-time, remote opportunity aligned with Ottawa talent.

What You Will Do

Execute senior-level data labeling across text, image, and multimodal tasks with consistent decision-making and high accuracy Perform RLHF-st…