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A

Andrés Felipe Ballesteros

AI Trainer | Coding | Javascript - React Developer

Colombia flagMedellín, Colombia
$35.00/hrEntry LevelData Annotation TechScale AI

Key Skills

Software

Data Annotation TechData Annotation Tech
Scale AIScale AI

Top Subject Matter

AI Tools
Healthcare - Web and Mobile development

Top Data Types

Computer Code ProgrammingComputer Code Programming

Top Task Types

Computer Programming/CodingComputer Programming/Coding

Freelancer Overview

AI Code Quality Evaluator — Freelance March 2026 - Present Provided expert-driven evaluation and labeled data services to support quality improvement of coding agents and code editing models. Created high-quality benchmark datasets capturing real-world developer workflows. Produced detailed annotations to expose model failure modes and edge cases. Collaborated on proprietary datasets used for AI model hill-climbing and performance benchmarking. React Native and React Developer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Certificate in Software Development, Holberton School (2020) and Bachelor of Science in Petroleum Engineering, Universidad de América (2015).

Entry LevelEnglish

Labeling Experience

NES

Computer Code ProgrammingComputer Programming Coding
Provided expert-driven evaluation and labeled data services to support quality improvement of coding agents and code editing models. Created high-quality benchmark datasets capturing real-world developer workflows. Produced detailed annotations to expose model failure modes and edge cases. Collaborated on proprietary datasets used for AI model hill-climbing and performance benchmarking.

Provided expert-driven evaluation and labeled data services to support quality improvement of coding agents and code editing models. Created high-quality benchmark datasets capturing real-world developer workflows. Produced detailed annotations to expose model failure modes and edge cases. Collaborated on proprietary datasets used for AI model hill-climbing and performance benchmarking.

2026 - Present

Education

H

Holberton School

Certificate in Software Development, Software Development

Certificate in Software Development
2020 - 2020
U

Universidad de América

Bachelor of Science in Petroleum Engineering, Petroleum Engineering

Bachelor of Science in Petroleum Engineering
2015 - 2015

Work History

N

NES

NES AI trainer

Remote
2026 - Present
G

Globant

React Native and React Developer

Medellín
2021 - 2026