Dmytro K.

AI Training Data Specialist | Data Annotation & Quality Assurance | Team Lead I am an experienced AI training data specialist who has progressed from Data Annotator to Verifier, Senior Verifier, and Team Lead. This hands-on experience has given me a deep understanding of what makes training data accurate, consistent, and valuable for AI models. I specialize in complex data annotation, OCR quality assurance, document structure, and multilingual datasets. I currently lead three annotation teams, helping them resolve challenging cases, improve accuracy, and maintain high quality standards. My strengths include: • Preparing and reviewing high-quality training data for AI models • Annotating text, mathematical formulas, tables, and complex document layouts • Identifying subtle errors and ensuring consistent application of guidelines • Training annotators and providing clear, practical feedback • Coordinating teams and improving annotation workflows I combine strong attention to detail with the ability to see the bigger picture. Whether you need a skilled specialist for complex annotation tasks or a reliable team lead to oversee quality, I bring practical expertise, clear communication, and ownership of the work.