Blog Perso

HPC engineering student

I am Simon "BigOuden" BÉLIER, a student at ENSIIE in the HPC (High-Performance Computing) program.

This site serves as both a personal blog and a professional portfolio. I will share my technical thoughts, projects, and discoveries about the world of computing and open source in general. Feel free to check out my posts and my projects.

Professional Experiences

Research Internship in Cybersecurity

Sherbrooke University

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Sherbrooke, Québec, Canada

May-June 2025 (4 months)

  • Development of an automatic TLS 1.3 test generation process based on formal B specifications using the ProB tool in a post-quantum cryptography context.
  • Design and implementation of robust evaluation criteria to validate the generated tests.
  • Production of comprehensive technical documentation ensuring the longevity of the project.
Java
TLS 1.3
Cybersecurity
Test Generation

Summer School

C-19, IMT Starter

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Évry, France

Summer 2024

  • Development of a B2B and B2C ERP to organize sports events, trade shows, and seminars.
  • Project planning and startup creation.
  • Development of a web app (HTML, CSS, PHP).
Web Development
Fullstack
ERP
Management
Startup

Windsurfing Instructor

NPI Plougonvelin

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Brittany, France

2021, 2022-2024

  • Teaching windsurfing at various levels, developing my skills in clear communication and pedagogy.
  • Close collaboration with the team, enhancing my ability to express myself concisely and precisely.
Teaching
Water Sports
Windsurfing
Communication
Education

Master's degree in Computer Science with a focus on HPC

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Évry, France

Sept 2023 - 2026

HPC
System Architecture
Operating Systems

Baccalaureate, options: Math, Physics, Computer Science

Lycée Amiral Ronarc'h

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Brest, France

2021

Science
High Honors
European Distinction
Projects

Self-hosted Infrastructure

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France

July 2024-present

  • Management of virtual machines and containers via the Proxmox hypervisor with integration of monitoring, DNS, VPN, and other open-source services.
  • Private and public services with monitoring and OpenId Connect authentication.
Docker
OpenId Connect
DNS/Traefik
VPN
Ansible
Prometheus

Determination of the Local Density of a Nuclear System

ENSIIE

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Évry, France

October 2024

  • Calculation of generalized Hermite and Laguerre polynomials.
  • Implementation of unit tests.
  • Representation of the local nuclear density in the (x, z) plane (Matplotlib) and the local nuclear density in space (x, y, z) (POV-Ray).
C++
Python
Armadillo
Quantum Physics
Numpy
Valgrind
POV-Ray

Simulation of Solutions for a Quantum Harmonic Oscillator

ENSIIE

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Évry, France

October 2024

  • Calculation of solutions for the one-dimensional harmonic oscillator equation.
  • Creation of unit tests and generation of documentation with Doxygen.
  • Display of particle presence probability curves for different energy levels.
C++
Python
Armadillo
Quantum Physics

Development of an Image-based Interpreter (Piet)

ENSIIE

Location logo
Évry, France

January 2024

  • C development and discovery of imperative programming.
  • Understanding the compilation chain.
  • Manipulation of ppm images.
C
Valgrind
GDB
Makefile