Data Annotation Specialist (Freelance / Remote)
I annotated datasets for NLP and computer vision tasks involving sentiment analysis, named entity recognition, and image classification. I maintained an accuracy rate above 98% and followed complex guidelines to ensure dataset consistency. I reviewed and corrected annotations while flagging ambiguous data for clarification. • Worked on text, image, and chatbot training datasets • Tasked with improving dataset quality for AI training • Responsible for independent quality assurance and data review • Consistently delivered high-quality annotations under deadline