Esther Chukwu

Key Skills

Software

Other

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Text

Video

Top Label Types

Action Recognition

Classification

Data Collection

Emotion Recognition

Object Detection

Text Generation

Transcription

Freelancer Overview

I am an experienced AI and data annotator with over two years of hands-on work supporting AI model training, data labeling, and quality assurance for large-scale projects. My expertise spans multimodal annotation across image, text, audio, and video datasets, including tasks such as bounding boxes, segmentation, keypoint labeling, object tracking, sentiment analysis, NER tagging, and speech transcription. I have a strong background in computer vision and natural language processing data, having evaluated and ranked AI-generated responses for factual accuracy, logical consistency, and safety alignment. I am skilled at identifying data inconsistencies, detecting model weaknesses like hallucinations and bias, and implementing quality control processes to ensure high-quality outputs. My adaptability, attention to detail, and commitment to improving annotation guidelines allow me to deliver reliable training data for evolving AI systems.

Labeling Experience

Education

Work History