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Hyunjun Sa

Hyunjun Sa

Skilled English Transcriptionist & Data Labeling Specialist

New Zealand flagauckland, New Zealand
$16.00/hrIntermediateAppenOneformaOther

Key Skills

Software

AppenAppen
OneFormaOneForma
Other

Top Subject Matter

No subject matter listed

Top Data Types

DocumentDocument
TextText
VideoVideo

Top Task Types

Audio Recording
Classification
Evaluation Rating
Fine Tuning
Translation Localization

Freelancer Overview

Experienced in English transcription and AI data labeling, specializing in NLP, LLM training, and sentiment analysis. Skilled in precise text annotation, speaker labeling, and content moderation to enhance AI model accuracy.

IntermediateKoreanEnglish

Labeling Experience

AI Trainer

OtherAudioSegmentationText Generation
Contributed to improving AI model performance by detecting and correcting errors to ensure high-quality data delivery. Collaborated effectively with team members from diverse countries to successfully execute projects. Quickly adapted to platform tools and gained foundational knowledge for efficient task execution

Contributed to improving AI model performance by detecting and correcting errors to ensure high-quality data delivery. Collaborated effectively with team members from diverse countries to successfully execute projects. Quickly adapted to platform tools and gained foundational knowledge for efficient task execution

2024 - 2025

Education

I

Inha University of Technology

Associate Degree, Mechanical Engineering

Associate Degree
2010 - 2013

Work History

T

The Healthy Lab

Machine Operator

auckland
2024 - 2025
S

Sigma AI

AI Trainer

Auckland
2024 - 2025