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Freelancer Overview
CHINECHEREM OGBONNAYA AI Evaluation Specialist | Data Annotation | Quality Review PROFESSIONAL SUMMARY Detail-oriented AI Evaluation Specialist with hands-on experience reviewing high-volume datasets and maintaining 95–98% accuracy across annotation tasks. Skilled in identifying inconsistencies, applying structured guidelines, and delivering clear, actionable feedback to improve AI model performance. Experienced in handling 200–400+ daily data entries while ensuring consistency, quality, and efficiency in fast-paced remote environments. Reliable, analytical, and committed to producing accurate and high-quality training data. CORE SKILLS (cid:127) AI Content Evaluation & Quality Review (cid:127) Data Annotation & Labeling (cid:127) Accuracy & Consistency (95–98%) (cid:127) Critical Thinking & Analysis (cid:127) Feedback & Quality Improvement (cid:127) Attention to Detail (cid:127) Guideline Adherence (cid:127) Remote Collaboration (cid:127) Google Workspace & Productivity Tools PROFESSIONAL EXPERIENCE AI Data Annotator / Quality Reviewer (Appen CrowdGen) Projects: Parimango, Multimango, Coffee | Remote | 2023 – Present (cid:127) Improved AI output quality by reviewing and evaluating 200–400+ data entries daily, identifying inconsistencies and errors. (cid:127) Maintained 95–98% accuracy by applying structured evaluation guidelines across multiple annotation tasks. (cid:127) Provided clear, actionable feedback on flagged outputs to enhance dataset reliability and model performa