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Borja Irazustabarrena

@borjairazustabarrena

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Physicist and mathematician applying rigorous theory to software engineering and research.

Spain

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What I'm looking for

I seek roles combining theoretical research and applied software development, in collaborative teams that value rigor, mentorship, and impact.

I am a physicist and mathematician with dual bachelor's degrees and a Master's in Theoretical Physics, combining strong mathematical training with practical software engineering experience. I have professional Java experience building Spring Boot microservices and current expertise using Matlab and Python for research and machine learning.

My academic work focuses on differential geometry, quantum information, and the geometry of physical theories; I completed high‑rated bachelor's theses on magnetic monopoles and the HHL quantum algorithm, and a Master's thesis on the Cauchy problem for parallel spinors that earned a 9.5.

I bring strong problem‑solving, leadership, and communication skills from academic and extracurricular roles (team leadership, coaching, event organization), and I apply these to collaborative research and engineering challenges.

Experience

Work history, roles, and key accomplishments

Current

Crossfit Coach

Current

Independent / Freelance

Jan 2025 - Present (10 months)

Designs and leads CrossFit training sessions focused on technique, conditioning, and athlete progression (ongoing engagement).

Fitness Coaching Program Design Safety Safety

Software Engineer

Indra

Jan 2021 - Jan 2024 (3 years)

Developed Spring Boot microservices in Java for Enel, contributing to backend systems and integration across teams during a 3-year engagement.

Java Spring Boot Microservices REST APIs Git Unit Testing CI CD System Integration

Rugby Coach

Independent / Volunteer

Jan 2017 - Jan 2020 (3 years)

Coached and developed players, planned training sessions, and led team-building activities to improve performance and skills over three seasons.

Coaching Team Leadership Communication Mentoring

Math & Physics Tutor

Private Tutor

Jan 2012 - Jan 2015 (3 years)

Provided one-to-one mathematics and physics instruction to students across levels, improving exam performance and conceptual understanding.

Lesson planning LaTeX Communication Problem Solving

Education

Degrees, certifications, and relevant coursework

Universidad Nacional de Educación a Distancia (UNED)

Master of Science, Theoretical Physics

2022 - 2025

Grade: 9.0 (course average); Master's thesis: 9.5

Activities and societies: Research under supervisor Carlos Shahbazi; distinctions with honors and top marks during the program.

Pursuing/completed Master's Degree in Advanced/Theoretical Physics with research on the Cauchy problem for parallel spinors and related differential geometry topics; master's thesis graded 9.5.

Universidad Complutense de Madrid

Bachelor of Science, Mathematics and Physics

2014 - 2022

Grade: Mathematics: 7.0; Physics: 7.14 (Physics thesis grade 9.3; Mathematics thesis grade 8.5)

Activities and societies: Science group representative; organized seminars and extracurricular activities; co-founded chess group.

Completed a Bachelor's Degree in Mathematics with specialization in Pure Mathematics and a Bachelor's Degree in Physics with specialization in Theoretical Physics; thesis work in quantum computing and magnetic monopoles.