Senior Data Labeling Lead - Remote RLHF & QA

Rex.zone is seeking a Senior Data Labeling Specialist to own end-to-end labeling workflows for AI/ML datasets across NLP, computer vision, and content safety. You will lead annotation and reviewer-level QA, and conduct RLHF-style evaluations connecting label quality to model performance.

Responsibilities include NLP and CV labeling, guideline development, and cross-functional collaboration to improve data quality and model behavior, with remote work options for US-based candidates including