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Haxell Gomez

Haxell Gomez

Review and create code to help train LLMs through RLHF techniques

COLOMBIA flag
Barranquilla, Colombia
$20.00/hrIntermediateAws SagemakerGoogle Cloud Vertex AILabelbox

Key Skills

Software

AWS SageMakerAWS SageMaker
Google Cloud Vertex AIGoogle Cloud Vertex AI
LabelboxLabelbox
Scale AIScale AI
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Computer Code ProgrammingComputer Code Programming
TextText
VideoVideo

Top Label Types

Computer Programming Coding
Data Collection
Object Detection
Prompt Response Writing SFT
RLHF

Freelancer Overview

I’m a software-focused AI trainer with hands-on experience producing training data for frontier models in the post-training process, including SFT, RLHF, and rubric-based evaluations. I specialize in writing and refining prompts, verifying code correctness, and grading model outputs with clear criteria. I’ve worked on both generalist language projects (English and Spanish, including tool use via MCP-like integrations) and coding projects, ensuring consistent labeling and maintaining quality standards across iterations.

IntermediateSpanishEnglish

Labeling Experience

Scale AI

QA Coder - LATAM

Scale AIComputer Code ProgrammingRLHFComputer Programming Coding
Review and create code in a QA role ensuring accuracy, clarity and consistency to help train advanced language models.

Review and create code in a QA role ensuring accuracy, clarity and consistency to help train advanced language models.

2025
Scale AI

Outlier | Coding Expert - Freelance

Scale AIComputer Code ProgrammingRLHFComputer Programming Coding
Crafted high-precision datasets to improve large language models through RLHF techniques, chain- of-thought and multi-step prompting strategies.

Crafted high-precision datasets to improve large language models through RLHF techniques, chain- of-thought and multi-step prompting strategies.

2024 - 2025

Education

U

Universidad del Norte

Bachelor of Science, Electronic Engineering

Bachelor of Science
2022 - 2026

Work History

C

Chain AI

Software & AI Developer

Remote
2023 - 2025