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R
Rafael Simonsohn

Rafael Simonsohn

Data Annotation AI Trainer

Spain flagBarcelona, Spain
$30.00/hrEntry Level

Key Skills

Software

No software listed

Top Subject Matter

AI/LLM Training - Advanced Mathematics & Physics
Programming - Debugging & Structural Code Generation
Education - Study Companion & Lecture-Style Explanation

Top Data Types

TextText
Computer Code ProgrammingComputer Code Programming
DocumentDocument

Top Task Types

RLHFRLHF
ClassificationClassification
Text GenerationText Generation
Question AnsweringQuestion Answering
Text SummarizationText Summarization
TranscriptionTranscription
Evaluation/RatingEvaluation/Rating
Computer Programming/CodingComputer Programming/Coding

Freelancer Overview

Data Annotation AI Trainer. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N and A. Education includes International Baccalaureate Diploma, Aula Escola Europea (2024) and Título de Bachillerato, Aula Escola Europea (2024). AI-training focus includes data types such as Text and labeling workflows including RLHF.

Entry LevelEnglishSpanishCatalanFrench

Labeling Experience

Data Annotation AI Trainer

TextRLHF
This role involved training large language models (LLMs) through interactive tasks. I reviewed and assessed the quality and efficiency of labeling work by other annotators. Additionally, I contributed by designing complex mathematical questions to evaluate and challenge the model's performance. • Performed reinforcement learning with human feedback (RLHF) on generative AI LLMs. • Conducted quality assurance and reporting for annotation tasks completed by others. • Designed specialized queries to test AI robustness and identify weaknesses. • Focused on advanced mathematical and language data sets.

This role involved training large language models (LLMs) through interactive tasks. I reviewed and assessed the quality and efficiency of labeling work by other annotators. Additionally, I contributed by designing complex mathematical questions to evaluate and challenge the model's performance. • Performed reinforcement learning with human feedback (RLHF) on generative AI LLMs. • Conducted quality assurance and reporting for annotation tasks completed by others. • Designed specialized queries to test AI robustness and identify weaknesses. • Focused on advanced mathematical and language data sets.

2025 - 2026

Education

T

Trinity College Dublin

Bachelor of Science, Theoretical Physics

Bachelor of Science
2025 - 2028
U

University of Barcelona

Bachelor of Science, Physics

Bachelor of Science
2024 - 2025

Work History

N

Noam

Youth Movement Head

Barcelona
2022 - 2025
P

Private Teaching Sessions

Private Tutor

Barcelona
2021 - 2025