AI Data Annotator & ML Training Specialist
At Moonvalley Software Company, I performed text and structured data annotation to train, evaluate, and improve live machine learning (ML) models. My work included classifying, validating, and systematically reviewing text-based datasets to ensure high-quality, consistent labels aligned with detailed guidelines. I also participated in output evaluation, error detection, and prompt-based annotation for large language models (LLMs), maintaining accuracy under deadline-driven remote conditions. • Annotated, classified, and validated text and structured datasets for ML training pipelines. • Conducted detailed QA reviews, identifying errors and guideline violations in annotation batches. • Evaluated AI outputs, identifying coherence issues, failure modes, and consistency problems. • Gained practical experience in prompt engineering to inform prompt-based annotation and evaluation.