Franklin O.

Key Skills

Freelancer Overview

FRANKLIN NNANNA OTTAH AI Data Annotator • Radiography Graduate • Digital Content Specialist PROFESSIONAL SUMMARY Detail-oriented and highly analytical professional with 2+ years of hands-on AI data annotation experience and a strong academic background in medical imaging (Radiography). Adept at producing high-quality labelled datasets for machine learning pipelines, with a proven ability to interpret complex visual and textual data with precision. Combines domain knowledge in biomedical sciences with practical skills in structured data workflow, quality assurance, and content production. Eager to contribute to an AI data annotation team in a generalist capacity, delivering accurate, consistent, and timely annotations at scale. CORE COMPETENCIES PROFESSIONAL EXPERIENCE Freelance AI Data Annotator | Various AI & ML Platforms 2022 – Present Annotated thousands of data samples including images, audio clips, and text documents for supervised machine learning model training across diverse industry verticals. Performed multi-modal annotation tasks: image segmentation, bounding box labelling, semantic tagging, sentiment classification, and dialogue quality rating. Contributed to Reinforcement Learning from Human Feedback (RLHF) projects by evaluating AI-generated responses for accuracy, helpfulness, and safety. Maintained annotation accuracy rates consistently above project benchmarks, adhering to complex guideline documents and ontologies. Communicated feedback on a