Senior Data Annotation Specialist
Led high-volume NLP and computer vision annotation projects for large-scale AI models. Focused on evaluating and ranking AI-generated responses to support model improvement. Consistently achieved high annotation accuracy and mentored junior staff on guidelines and QA. • Delivered over 1.2 million labeled data points for NLP and computer vision projects • Maintained annotation accuracy above 99.3% through quality audits • Developed and refined labeling schemas with ML engineers • Provided training and support to 15+ annotation specialists