Data Labeling and Annotation Specialist (Freelance AI training data projects, remote)
Annotated 5,000+ computer vision images for PPE safety detection by creating bounding boxes and polygon masks while keeping label accuracy above 98% across deliverables. Built multi-class labeled datasets for PPE detection, including person detection, safety equipment identification, and NO-class absence flagging. Performed QA review to correct mislabeled bounding boxes and maintain dataset integrity for downstream training. • Data labeling for 8 PPE classes including Gloves, Hardhat, Vest-Overall, Person, and negative NO classes • Dataset delivery throughput of 1,000–2,000 annotated images per week • QA and label validation to reduce errors prior to model training • Automated export workflows using common CV formats (e.g., YOLO/COCO/Pascal VOC)