Gabriel Cst

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Text

Top Label Types

Audio Recording

RLHF

Freelancer Overview

I have hands-on experience in AI training data, data labeling, and evaluation, working with Large Language Models (LLMs) as an AI Trainer at Outlier. My work includes prompt engineering, structured data annotation, comparative ranking, and rubric-based assessments to improve model alignment in both English and Portuguese. I have also evaluated and classified digital advertising content for international markets as a data analyst and ads evaluator at Welocalize, applying machine learning content standards and delivering consistent, high-quality data assessments across multiple projects. My technical skills include SQL, advanced Excel, and workflow automation tools such as Kommo and N8N, and I am comfortable working in agile, remote environments to ensure data quality and process optimization for AI and machine learning applications.

Labeling Experience

Education

Work History