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Yulier J. — Mid-Level Data Scientist from Mexico

Yulier J.

Mid-Level Data Scientist

Mexico 3-6 years
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Languages
EnglishSpanish
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About

Yulier J., a seasoned Data Scientist and AI Training Specialist, boasts a PhD in Physics from the Universidad de Guanajuato, where he mastered mathematical modeling, scientific computing, and quantitative analysis. His expertise extends to the training and technical validation of Large Language Models (LLMs) and designing logical frameworks for complex STEM challenges. Currently contributing as an Expert Contributor & Moderator at Quizlet, Yulier leads a team of over 30 specialists in delivering advanced analytical solutions, crafting over 6,400 algorithms for the exact sciences. His role at Outlier as an AI Trainer & STEM Consultant involves optimizing AI-generated content through rigorous model evaluation and prompt engineering. As a Professor of Physics at CDC Tesla, he focuses on developing students' analytical skills for high-stakes exams. His dedication to scientific research is reflected in his diverse publications in prominent journals.

Experience

  • Professor of Physics & Logical Reasoning

    CDC Tesla · 2026 — Present
    Focused on developing analytical thinking and problem-solving skills in students preparing for university admissions. Structured evaluation metrics and educational algorithms to improve student performance.

  • General Physics Laboratory Instructor

    Universidad de Guanajuato · 2025 — 2025
    Managed experimental projects and facilitated real-time data acquisition using scientific instrumentation. Conducted statistical data processing, performed error analysis, and engaged in numerical modeling related to classical physics phenomena for engineering students.

  • AI Trainer & STEM Consultant

    Outlier · 2024 — Present
    Delivered advanced training for Large Language Models (LLMs) via prompt engineering and response alignment. Addressed complex math and STEM problems, creating standards for supervised learning datasets. Conducted thorough technical validation of AI-generated code and answers.

  • Expert Contributor & Moderator (STEM & AI)

    Quizlet · 2021 — Present
    Supervised a technical team of over 30 specialists in crafting analytical solutions. Developed and validated over 6,400 algorithms and methodologies designed for exact sciences. Reviewed, corrected, and enhanced AI-generated content to maintain technical accuracy and established internal protocols for academic quality assurance.

  • Teaching Assistant & Numerical Methods Co-Instructor

    Universidad de Guanajuato · 2017 — 2018
    Assisted in advanced courses of Multivariable Calculus and Computational Linear Algebra, as well as taught foundational courses aimed at enhancing structured mathematical problem-solving skills.

  • Assistant Professor of Physics

    Universidad de Cienfuegos · 2010 — 2014
    Oversaw laboratories and instructed theoretical courses in General Physics I, II, and III with a focus on analytical engineering. Engaged in curriculum evaluation to enhance teaching methodologies in the department of exact sciences.

Skills & Expertise

AI and Data ScienceAI EngineerData Scientist

Education

  • PhD in Physics
    Universidad de Guanajuato · 2017 — 2021
  • MSc in Physics
    Universidad de Guanajuato · 2015 — 2017
  • BSc in Physics
    Universidad de Oriente · 2004 — 2009