Christopher Pierce

Lead a team producing and reviewing complex audio, image, and video annotation datasets for AI model training. QA Reviewer and Team Lead across 15+ projects — defining standards, maintaining data integrity, and coaching annotators. Authored prompts and guidelines across Mental Health, Humanities, Document Intelligence, and Culture domains. Trained and mentored 3,000+ annotators through structured coaching, daily meetings, and performance feedback. Vetted and hired 2,000+ candidates for a large-scale annotation project from screening through onboarding. Drove a 15% improvement in model accuracy and annotation efficiency through targeted quality initiatives.

Lead a team producing and reviewing complex audio, image, and video annotation datasets for AI model training. QA Reviewer and Team Lead across 15+ projects — defining standards, maintaining data integrity, and coaching annotators. Authored prompts and guidelines across Mental Health, Humanities, Document Intelligence, and Culture domains. Trained and mentored 3,000+ annotators through structured coaching, daily meetings, and performance feedback. Vetted and hired 2,000+ candidates for a large-scale annotation project from screening through onboarding. Drove a 15% improvement in model accuracy and annotation efficiency through targeted quality initiatives.

Train AI models through creation and review of complex audio, image, and video captions; lead QA and feedback cycles to maintain consistency and data integrity; conduct daily team trainings, manage documentation, and coordinate cross-functional feedback loops; collaborate with ML engineers to improve model logic, training protocols, and labeling guidelines.