AI Data Operations Specialist (Contract/Freelance)
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Entity (NER) ClassificationProvided large-scale text data annotation and labeling for NLP and machine learning workflows across multiple AI platforms, ensuring outputs met task instructions and guideline requirements. Evaluated and ranked LLM-generated responses for relevance, accuracy, safety, and adherence to instructions to support human-in-the-loop training. Performed dataset quality assurance reviews to maintain consistency, handle edge cases, and ensure labeled datasets were usable for supervised and reinforcement learning pipelines. • Annotated intent, sentiment, and named entities from conversational and document-style text inputs • Conducted structured dataset QA/QC including consistency checks across annotation guideline layers • Ranked response quality for accuracy, safety, relevance, and compliance with instructions • Applied confidentiality practices for sensitive or restricted datasets in compliance-driven environments