Charles O.

Key Skills

Software

Other

Appen

Clickworker

Data Annotation Tech

Toloka

Top Subject Matter

AI/LLM Response and Text Data

Top Data Types

Text

Top Task Types

Classification

Object Detection

Text Summarization

Question Answering

Text Generation

Transcription

Entity (NER) Classification

Segmentation

Point/Key Point

Freelancer Overview

I have experience working with large volumes of text data through academic research writing, content development, and structured documentation. My work involves carefully reviewing written content for accuracy, coherence, grammar, and logical consistency. This has strengthened my ability to analyze language quality, detect inconsistencies, and provide clear, structured feedback—skills that are essential in data labeling and AI training workflows. Additionally, I have developed educational resources and IELTS preparation materials that require evaluating language fluency, clarity, and instruction-following. I am highly detail-oriented, comfortable working with digital platforms, and able to follow detailed guidelines when categorizing, rating, or annotating text datasets. My background in research, English language analysis, and remote digital work allows me to maintain high accuracy and consistency when contributing to AI training and evaluation tasks.

Labeling Experience

Freelance AI Content Evaluator & Data Annotation Specialist

OtherText

As a Freelance AI Content Evaluator & Data Annotation Specialist, I evaluated AI-generated responses for accuracy and relevance. I labeled and categorized large text datasets to support machine learning model training. I reviewed prompts and responses to identify bias, factual errors, and logical inconsistencies. • Performed structured content reviews and ratings. • Provided detailed feedback to improve model output quality. • Maintained high quality standards across AI data labeling tasks. • Utilized multiple digital platforms and workflow tools.

2023 - Present

Education

Work History