@Reeezer/
About Education Experience Projects Volunteering Contact

I am Léon Muller,
Master's student in Data Science at EPFL, passionate about machine learning research.

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About me

About me


Machine Learning Researcher

Data Science Master's student at EPFL. I focus on machine learning research, and want to engineer solutions that matters.

See my LinkedIn profile

Indie Game Developer

I am also a game developer, creating indie games. I like exploring new game mechanics that challenge players.

See my Itch.io profile

Open Source Contributor

I maintain and contribute to machine learning, games, and software projects on GitHub, both academic and personal.

See my GitHub profile

Education

Education


Master of Science, Data Science @ EPFL

2022 - 2025

Currently pursuing a Master's degree in Data Science at EPFL, focusing on research and scientific fundamentals in AI and machine learning.

Machine Learning Computer Vision Natural Language Processing Algorithms Research

Grade - 5.56/6.00 (to date)

Bachelor of Science, Computer Science & Imaging @ HES-SO Arc Ingéniérie

2020 - 2022

Completed a Bachelor's degree in Computer Science at HES-SO Arc Ingéniérie, specialized in Software & Full Stack Development.

Machine Learning Databases Computer Vision Software Development Mobile Applications
Cap

Award - Top Student of the entire school (Valedictorian)

Grade - 5.73/6.00

Bachelor of Science, Computer Science & Engineering @ UTBM

2019 - 2020

Completed a Bachelor's degree in Engineering at UTBM, focused in foundational skills in Engineering and Computer Science.

Computer Science Engineering Mathematics
Cap

Award - DEUTEC Prize for the Best Students

Grade - 5.06/6.00

Experience

Experience


Machine Learning Research Intern @ Rolex

Feb 2025 - Present

Researched few-shot vision models that mimic human visual learning to improve generalization from limited supervision.

Machine Learning Research Intern @ .NeuroRestore

Feb 2024 - Feb 2025

Built a 3D ViT foundation model for spinal MRI scans, enabling accurate patient-specific spinal cord reconstruction for surgical planning.

Teaching Assistant @ EPFL

Sep 2023 - Feb 2024

TA for CS-214 Software Construction, guiding 500+ students through complex programming concepts and practical assignments.

Machine Learning & Robotics Research Intern @ HES-SO Arc Ingénierie

May 2022 - Jul 2022

Developed a real-time object tracking autopilot for JetRacer cars using autonomous target following.

Projects

Projects


Legal Document QA with Retrieval-Augmented Generation @ EPFL

Built a system to answer questions about EPFL legal documents using Retrieval-Augmented Generation (RAG). Combined semantic search, FAISS-based vector indexing, and real-time retrieval via LangChain. Designed custom prompts and agents to produce context-aware, grounded answers, making complex legal content more accessible.

Machine Learning RAG NLP Semantic Search

Based on LangChain, FAISS & OpenAI APIs

Watch

Personnalized Spinal Cord Reconstruction @ .NeuroRestore

Developed a foundation model for spinal MRI reconstruction to support surgical planning. Used a self-supervised 3D Masked Autoencoder architecture (based on Vision Transformers) to learn detailed anatomical features from unlabeled data, which were fine-tuned for spinal root segmentation and artifact correction.

Machine Learning Neuroimaging Foundation Model Research

Based on ViT Masked Autoencoders

Brain

AI Tutor for Scientific Courses @ EPFL

Created an AI tutor that explains STEM concepts interactively. Fine-tuned a language model using PEFT, SFT, DPO, and RLHF techniques to improve alignment with academic standards and student expectations. Delivered accurate, step-by-step solutions to support autonomous learning.

Machine Learning LLMs Reinforcement Learning Model Alignment

Based on OpenAI GPT2

Library

Decoding Brain Signals for Movement Recovery @ .NeuroRestore

Built deep learning models to decode arm movement intentions from ECoG brain signals. Explored architectures like EEGNet and CEBRA to capture motor dynamics, contributing to neurotechnologies for spinal cord injury rehabilitation.

Machine Learning Time Series Neurotech

Based on EEGNet & CEBRA

Brain

Autonomous Pilot & Target Tracking @ HES-SO Arc Ingéniérie

Built a real-time object tracking and autopilot system for JetRacer cars using SSD on NVIDIA Jetson. Combined computer vision with PID control to follow a lead vehicle, enabling stable autonomous navigation in dynamic environments.

Machine Learning Computer Vision Robotics Research

Based on NVIDIA Jetson-Inference & SSD

Car

Almost a Tinkerer @ HES-SO Arc Ingéniérie

Designed a relaxing factory-building game where players automate furniture production. The game evolves from structured tasks to a creative sandbox, with unlockable buildings and mechanics. Built entirely from scratch, including code, gameplay design, and pixel art.

Game Dev Simulation Pixel Art Automation UX Design

Based on Shapez.io & Factorio

Factory Game
Volunteering

Volunteering


IT Manager @ Students' Games

2022 - Present

Managed IT infrastructure for Switzerland's largest inter-university sports tournament, enhancing the event platform and developing a mobile application to improve the user experience for 800+ participants. Also, oversaw real-time coordination of the volleyball tournament, ensuring efficient logistics and communication.

Project management Event organization Web development Mobile applications
Spinal Cord

Scout Unit Head @ Scouts et Guides de France

2020 - 2022

Led a youth group in weekly sessions focused on building independence, teamwork, and leadership through group projects and community activities. During summer camp, we lived outdoors in challenging conditions, where the group applied these skills in real-life situations, managing daily life, teamwork, and shared responsibilities.

Leadership Team Management Communication Teaching
Library

Get in touch with me
leon.muller@epfl.ch

Léon Muller 2025