
Daniel
AI Data Annotation Labelling, Training
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Work experience
AI Data Annotation & AI Training Data Specialist
Freelancer.com • Full-time
Jun 2024 - Apr 2025 • 10 mos
•Performed large-scale AI data annotation and labeling for machine learning models including image, text, and audio datasets •Conducted data quality evaluation, validation, and correction to ensure high-accuracy training datasets for AI systems •Worked on NLP tasks such as text classification, sentiment labeling, entity tagging, and content moderation •Completed structured annotation tasks for platforms similar to Appen, Toloka, Scale AI, and Remotasks workflows •Followed strict annotation guidelines and quality assurance rules to maintain dataset consistency and model performance standards •Collaborated in remote freelance environments, meeting deadlines and delivering high-volume labeled datasets efficiently