Data Annotation & AI Training Contributor (Freelance)
As a freelance data annotation and AI training contributor, I performed diverse NLP annotation tasks supporting large language model development. I classified text, performed named entity recognition, rated sentiment, and evaluated AI-generated code and textual responses. I also conducted RLHF evaluation and worked on multilingual annotation projects in English and Swahili. • Maintained annotation accuracy above platform thresholds and escalated ambiguous or edge cases for review. • Followed platform-specific annotation guidelines and documented feedback loops for continuous improvement. • Rated and ranked AI model outputs for quality and factual consistency. • Used platforms including Mercor, Toloka, and DataAnnotation.tech with tools like Label Studio and CVAT.