Independent AI Data Trainer & Labeler (Freelance)
Performed text classification and annotation on large unstructured datasets using consistent labeling schemas and escalation for ambiguous cases. Completed point and key point labeling on structured datasets while maintaining accuracy standards above 99% for inter-rater reliability. Conducted quality assurance reviews on incoming batches to detect mislabeled entries, formatting issues, and guideline deviations before finalization. • Annotated 200–400 records per day in a remote, async workflow. • Flagged ambiguous cases for reviewer escalation and maintained label consistency. • Ran inter-rater reliability and QA checks across sessions. • Onboarded and trained two junior annotators, reducing early error rates.