Joseph Lopez

Key Skills

Software

Data Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

Text

Top Label Types

Text Generation

Freelancer Overview

I am a detail-oriented Business Administration student with over three years of daily, hands-on experience in AI training data, data annotation, and RLHF feedback. My active Pro subscriptions and extensive use of ChatGPT, Claude, Gemini, and Perplexity have given me a deep understanding of how AI models generate content, where they fail, and how to evaluate their outputs for accuracy, logic, tone, and bias. I excel at spotting hallucinations, reasoning errors, and inconsistencies—skills I have honed through prompt engineering and real-world AI evaluation across domains like fitness, gaming, business, and technology. My self-directed work style, strong analytical thinking, and commitment to quality make me ready to contribute immediately to remote data labeling or annotation projects.

Labeling Experience

AI Response Evaluation & Text Annotation

Data Annotation TechTextText Generation

Evaluated AI-generated responses for accuracy, logic, tone, and bias across hundreds of real-world tasks using ChatGPT, Claude, Gemini, and Perplexity. Identified hallucinations, factual errors, and reasoning gaps. Completed DataAnnotation.tech General Projects assessment covering chatbot evaluation, response ranking, and creative writing tasks.

Evaluated AI-generated responses for accuracy, logic, tone, and bias across hundreds of real-world tasks using ChatGPT, Claude, Gemini, and Perplexity. Identified hallucinations, factual errors, and reasoning gaps. Completed DataAnnotation.tech General Projects assessment covering chatbot evaluation, response ranking, and creative writing tasks.

2023

Education

Work History