Data Annotation Specialist (Freelance/Contract) — Appen Crowgen
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RLHFProvided multi-format AI data annotation, including images, text prompts, voice samples, and short videos, while maintaining strict quality and compliance standards. Completed RLHF-style pairwise comparison and preference ranking to assess AI responses for correctness, clarity, and alignment, alongside quality scoring duties. Created and optimized prompts and test cases to support AI evaluation and model benchmarking while performing ongoing validation and consistency checks. • Annotated and labeled datasets across image, text, audio, and video formats • Performed pairwise comparisons and preference ranking for response evaluation • Conducted RLHF quality scoring and alignment assessment • Ensured data accuracy via validation, consistency checks, and error detection