For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
A
Andres Henao

Andres Henao

Head of Artificial Intelligence Platform & Machine Learning Engineer

Spain flagBarcelona, Spain
$90.00/hrIntermediateInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

STEM Prompt Engineering & Physics, Chemistry, and Advanced Mathematics
Model Red-Teaming & Limitation Testing
Applied Machine Learning & Python Engineering

Top Data Types

ImageImage
TextText
DocumentDocument

Top Task Types

ClassificationClassification
RLHFRLHF

Freelancer Overview

AI Subject Matter Expert & STEM Evaluator (Consultant), Confidential AI Labs. Brings 16+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. Education includes Doctor of Philosophy, Barcelona Tech - UPC (2016) and Master of Science, University of Barcelona / UPC (2011). AI-training focus includes data types such as Text and labeling workflows including RLHF.

IntermediateEnglishSpanishGermanCatalan

Labeling Experience

AI Subject Matter Expert & STEM Evaluator (Consultant), Confidential AI Labs

TextRLHF
I conducted advanced red-teaming and evaluation of large language models (LLMs) on complex STEM, physics, and coding tasks. This work involved identifying model limitations and hallucinations, designing challenging prompts, and generating step-by-step, ground-truth solutions for RLHF training. I worked as an AI Subject Matter Expert & STEM Evaluator for Confidential AI Labs, focusing on model performance improvement for technical domains. • Evaluated LLM outputs for accuracy and reliability • Designed prompts for edge-case testing and technical complexity • Generated annotated data for reinforcement learning from human feedback • Improved model robustness in specialized STEM subject areas

I conducted advanced red-teaming and evaluation of large language models (LLMs) on complex STEM, physics, and coding tasks. This work involved identifying model limitations and hallucinations, designing challenging prompts, and generating step-by-step, ground-truth solutions for RLHF training. I worked as an AI Subject Matter Expert & STEM Evaluator for Confidential AI Labs, focusing on model performance improvement for technical domains. • Evaluated LLM outputs for accuracy and reliability • Designed prompts for edge-case testing and technical complexity • Generated annotated data for reinforcement learning from human feedback • Improved model robustness in specialized STEM subject areas

2025 - Present

Education

B

Barcelona Tech - UPC

Doctor of Philosophy, Computational and Applied Physics

Doctor of Philosophy
2011 - 2016
U

University of Barcelona / UPC

Master of Science, Computational and Applied Physics

Master of Science
2010 - 2011

Work History

I

ICN2

Head of Artificial Intelligence Platform & Machine Learning Engineer

Barcelona
2024 - Present
D

Dribia

Data Scientist / Consultant

Barcelona
2023 - 2024