Javier Nicolas B.

Key Skills

Software

Mindrift

Mercor

Labelbox

Data Annotation Tech

Top Subject Matter

Large language model evaluation

Rlhf Domain Expertise

mathematical reasoning

Top Data Types

Text

Document

Top Task Types

RLHF

Classification

Transcription

Text Generation

Prompt + Response Writing (SFT)

Data Collection

Computer Programming/Coding

Evaluation/Rating

Freelancer Overview

AI Trainer / AI Evaluator / Reasoning Specialist (International Artificial Intelligence Projects, Remote). Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose. Education includes Professional Degree in Mathematics Education, Teacher Training Institute – Venado Tuerto and University Degree in Programming, National Technological University (UTN) – Venado Tuerto Regional Faculty. AI-training focus includes data types such as Text and labeling workflows including RLHF.

Labeling Experience

AI Trainer / AI Evaluator / Reasoning Specialist (International Artificial Intelligence Projects, Remote)

Don't discloseTextRLHF

Trained and evaluated advanced generative large language models (LLMs) by creating tasks, benchmarks, and evaluation prompts to measure reasoning quality. Applied reinforcement learning from human feedback (RLHF) workflows to optimize model behavior, accuracy, and safety. Produced and validated domain-specific datasets and ratings for complex math and physics reasoning. • Designed mathematical reasoning tasks across secondary to university-level topics • Evaluated physics/scientific reasoning for factuality, consistency, and response quality • Performed RLHF tasks in human-in-the-loop improvement pipelines • Built specialized travel-planning and reservation/booking agent datasets and prompts

2023 - Present

Education

Work History