Erastus Omollo

Key Skills

Software

Appen

Top Subject Matter

No subject matter listed

Top Data Types

Text

Top Label Types

Bounding Box

Segmentation

Classification

RLHF

Freelancer Overview

I am a detail-oriented Computer Science student with hands-on experience in data labeling, annotation, and AI training data preparation. My background includes using Python-based tools like Doccano and Prodigy to efficiently label and structure datasets for machine learning projects. I have contributed to academic research by processing and labeling raw data to train predictive models, specifically in the area of crime trend analysis. Additionally, I have worked as a freelance AI and data professional, where I developed AI-powered websites and managed the end-to-end data pipeline—from data cleaning and feature engineering to model training and quality assurance. I am passionate about building high-quality datasets that drive accurate and impactful AI solutions.

Labeling Experience

AI Chatbot Quality Annotation

AppenTextBounding BoxSegmentation

Evaluated and annotated AI generated responses for quality, accuracy, helpfulness, and safety as part of reinforcement learning from human feedback[RLHF] pipeline. Reviewed and ranked model outputs across multiple criteria, maintaining consistency with annotation guidelines. Labeled over 500 text samples with attention to factual correctness and tone appropriateness.

Evaluated and annotated AI generated responses for quality, accuracy, helpfulness, and safety as part of reinforcement learning from human feedback[RLHF] pipeline. Reviewed and ranked model outputs across multiple criteria, maintaining consistency with annotation guidelines. Labeled over 500 text samples with attention to factual correctness and tone appropriateness.

2024 - 2024

Education

Work History