Tochukwu O.

Key Skills

Software

Appen

Remotasks

Toloka

Scale AI

Labelbox

OneForma

Mercor

iMerit

Data Annotation Tech

Label Studio

CVAT

Top Subject Matter

AI model training

conversational AI

search quality

Top Data Types

Text

Image

Video

Document

Top Task Types

RLHF

Text Summarization

Classification

Text Generation

Function Calling

Data Collection

Prompt + Response Writing (SFT)

Segmentation

Fine-tuning

Question Answering

Freelancer Overview

Freelance AI Trainer / Data Labeler. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, Scale AI, and Appen. Education includes Bachelor of Science, University of Lagos Nigeria (2025). AI-training focus includes data types such as Text and labeling workflows including Classification.

Labeling Experience

Freelance AI Trainer / Data Labeler

LabelboxTextRLHFClassification

As a Freelance AI Trainer and Data Labeler, I performed extensive RLHF (Reinforcement Learning from Human Feedback) tasks to refine machine learning models. This involved evaluating, ranking, and providing detailed feedback on AI-generated conversational outputs across multiple annotation projects. My work maintained high accuracy throughout several quality audits while supporting the training of conversational AI systems. • Evaluated and rated AI-generated responses for accuracy, helpfulness, and safety. • Applied complex annotation guidelines to nuanced intent and sentiment categorization tasks. • Collaborated with quality teams to report edge cases and improve annotation guidelines. • Maintained accuracy rates above 95% during multi-round audits.

2022 - Present

Education

Work History