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Chinelo Chukwudi Ebenezer

AI Data Annotator

NIGERIA flag
Lagos, Nigeria
$15.00/hrExpertAppen

Key Skills

Software

AppenAppen

Top Subject Matter

Artificial Intelligence & Technology
Computer Science & Software Development
Education & E-learning

Top Data Types

TextText
DocumentDocument

Top Task Types

Evaluation Rating
Prompt Response Writing SFT

Freelancer Overview

I have 3+ years of experience working with data-related and AI training tasks, where I have developed strong skills in data evaluation, content labeling, and quality assessment. My work has involved reviewing and improving structured and unstructured data, identifying inconsistencies, and ensuring outputs meet accuracy and clarity standards. This experience has strengthened my attention to detail, analytical thinking, and ability to follow strict guidelines. In addition, my background in Computer Science and Android app development has enhanced my ability to understand complex systems and evaluate outputs logically. I am skilled in assessing AI-generated responses for correctness, coherence, and usefulness, as well as refining content to improve overall quality. My combination of technical expertise and strong written communication allows me to contribute effectively to AI training, prompt evaluation, and data annotation projects.

ExpertEnglish

Labeling Experience

AI Data Annotator

TextText Generation
I have worked on several data labeling and AI training-related tasks focused on improving data quality and model performance. These include text annotation and classification, where I categorized and labeled written content based on intent, tone, and relevance. I have also performed AI response evaluation tasks, comparing multiple outputs and selecting the most accurate, clear, and useful responses based on given guidelines. In addition, I have been involved in content refinement and prompt evaluation, where I reviewed AI-generated text, identified inconsistencies or errors, and improved responses for better clarity and logical flow. My work often required following strict annotation guidelines, maintaining consistency across tasks, and ensuring high accuracy. These experiences have strengthened my attention to detail, analytical thinking, and ability to deliver high-quality labeled data for AI training purposes.

I have worked on several data labeling and AI training-related tasks focused on improving data quality and model performance. These include text annotation and classification, where I categorized and labeled written content based on intent, tone, and relevance. I have also performed AI response evaluation tasks, comparing multiple outputs and selecting the most accurate, clear, and useful responses based on given guidelines. In addition, I have been involved in content refinement and prompt evaluation, where I reviewed AI-generated text, identified inconsistencies or errors, and improved responses for better clarity and logical flow. My work often required following strict annotation guidelines, maintaining consistency across tasks, and ensuring high accuracy. These experiences have strengthened my attention to detail, analytical thinking, and ability to deliver high-quality labeled data for AI training purposes.

2025 - Present

Education

S

State University Of Medical And Applied Sciences

Bachelor of Science, Computer Science

Bachelor of Science
2021 - 2025

Work History

A

AcadX

Android App Developer

Lagos
2022 - 2023
E

Elevator Coin

Blockchain Project Lead

Lagos
2021 - 2022