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C

Chukwuebuka P.

Freelance AI Data Rater & Annotation Specialist (Upwork/Fiverr) — Remote (2024 – Present)

Nigeria flagN/A, Nigeria

Key Skills

Software

Other

Top Subject Matter

AI response evaluation
content evaluation
and written text QA

Top Data Types

TextText
DocumentDocument
ImageImage

Top Task Types

ClassificationClassification

Freelancer Overview

Freelance AI Data Rater & Annotation Specialist (Upwork/Fiverr) — Remote (2024 – Present). Brings 9+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Other. Education includes Bachelor of Science, Federal University of Technology Owerri (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Microtask Worker — Data Labeling & Content Evaluation (Amazon Mechanical Turk) — Remote (2023 – Present)

OtherTextTextClassificationClassification

Labeled and validated text data for sentiment, intent, and topic classification using detailed task instructions. Ensured label consistency and accuracy across high-volume microtasks through quality control checks. Applied data validation steps and maintained adherence to complex guidelines to improve dataset reliability. • Labeled datasets for sentiment, intent, and topic categories • Performed data validation to catch inconsistencies • Followed detailed instructions and quality control standards • Improved speed while maintaining precision in repetitive labeling

2023 - Present

Freelance AI Data Rater & Annotation Specialist (Upwork/Fiverr) — Remote (2024 – Present)

OtherTextText

Performed high-volume AI response evaluation and content comparison to select responses based on clarity, accuracy, and relevance. Followed structured rubrics and internal guidelines to ensure consistent scoring across repetitive tasks. Provided concise written justifications for evaluation decisions to support quality assurance outcomes. • Compared multiple AI-generated responses for correctness and completeness • Identified misleading, low-quality, or unsafe outputs using rubric criteria • Maintained consistent evaluation criteria across tasks • Delivered timely results while adhering to instruction sets

2023 - Present

Education

F

Federal University of Technology Owerri

Bachelor of Science, Business Administration

Bachelor of Science
2017 - 2023

Work History

A

Apex Solutions

Operations And Strategy Specialist

N/A
2018 - Present
A

Amazon

Customer Support Associate

Lagos
2022 - 2023