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Onwukwe Tc

Onwukwe Tc

Data Annotator and AI Training Specialist

Nigeria flagLAGOS, Nigeria
$9.00/hrExpertCVATLabelboxMercor

Key Skills

Software

CVATCVAT
LabelboxLabelbox
MercorMercor

Top Subject Matter

Large Language Models
Conversational AI
data labelling

Top Data Types

TextText
ImageImage
VideoVideo

Top Task Types

RLHF
Bounding Box
Fine Tuning
Evaluation Rating
Polygon

Freelancer Overview

Data Annotator and AI Training Specialist. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Engineering, Federal University of Technology Owerri (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

ExpertEnglish

Labeling Experience

Data Annotator and AI Training Specialist

Text
As a Data Annotator and AI Training Specialist, I performed data labeling and text annotation across multiple AI projects with a focus on accuracy and consistency. My responsibilities included evaluating AI-generated outputs for helpfulness, factuality, and ethical alignment, as well as developing prompts for large language models. I also contributed high-quality written content for supervised fine-tuning and reinforcement learning pipelines. • Conducted detailed text annotations per strict guidelines. • Rated, reviewed, and flagged AI outputs to support LLM fine-tuning. • Created prompts and handled LLM testing/response tasks for summarization and question answering. • Executed quality assurance, ensuring inter-annotator agreement and dataset integrity.

As a Data Annotator and AI Training Specialist, I performed data labeling and text annotation across multiple AI projects with a focus on accuracy and consistency. My responsibilities included evaluating AI-generated outputs for helpfulness, factuality, and ethical alignment, as well as developing prompts for large language models. I also contributed high-quality written content for supervised fine-tuning and reinforcement learning pipelines. • Conducted detailed text annotations per strict guidelines. • Rated, reviewed, and flagged AI outputs to support LLM fine-tuning. • Created prompts and handled LLM testing/response tasks for summarization and question answering. • Executed quality assurance, ensuring inter-annotator agreement and dataset integrity.

2021 - Present

Education

F

Federal University of Technology Owerri

Bachelor of Engineering, Agricultural Engineering

Bachelor of Engineering
2019 - 2023

Work History

F

Freelance Consulting

Content Writer and Research Analyst

Lagos
2019 - 2021