Hyun Jun Sa

Reviewed and proofread transcripts to ensure compliance with detailed project guidelines and quality standards. Performed Quality Assurance (QA) and evaluated other contributors’ work for accuracy and consistency. Annotated audio data with speaker labels, speech segments, overlaps, background sounds, and relevant metadata. Conducted paralinguistic and emotion annotation for speech and language AI training projects. Evaluated AI-generated responses via side-by-side comparisons based on relevance, language quality, and instruction compliance. Completed Korean and English localization and linguistic quality evaluations to ensure natural, culturally appropriate content, while consistently meeting task-specific quality requirements during frequent guideline updates.

Operated industrial machinery in a high-volume manufacturing environment. Ensured machines were set up correctly, monitored operations for quality and efficiency, and performed routine maintenance tasks as needed.

Managed overall site cleanliness and implemented measures to improve performance. Coordinated team activities, managed work schedules and attendance, and maintained effective communication with retail stores to understand customer requirements and implement service improvements based on feedback. Addressed and resolved on-site issues promptly by analyzing root causes and implementing preventive measures. Led the cleaning service team to maintain facility cleanliness excellence through effective training and policy development, improving customer satisfaction.