Hi, I'm Guillaume

(Or UnMars online)

I'm a French CS student who loves coding.
Reach out if you you'd like to learn more!

Contact Me
hero image of me

About

Me sitting with a laptop
  • Cursor icon

    Script Developer

    I have experience developing scripts and bots for various usages to automate tasks

  • Server icon

    Web Developer

    I have experience developing responsive websites communicating with databases

  • UI icon

    CyberSec Enjoyer

    I'm interested in cybersecurity domains. In my spare time, I'm also doing various CTFs with my friends.

Experience

Python

Python

React Native

React Native

TypeScript

TypeScript

HTML

HTML

CSS

CSS

Javascript

Javascript

C

C

Java

Java

  • Fiverr Logo

    Freelance Developer, Fiverr

    Sept, 2019 - Present

    • Made bots
    • Automated boring or repetitive tasks
  • ENSIMAG Logo

    CS Student, ENSIMAG

    Sept, 2023 - Present

    • Studied CS with Data Structures, Algorithms, OOP, Networks...
  • Nsigma Logo

    Technical Consultant, Nsigma

    Nov, 2023 - Mar, 2024

    • Helped clients into their digital project
    • Created personnalized solutions for clients
    • Data Structure, DBs...
  • Nsigma Logo

    CIO (Chief information officer), Nsigma

    Mar, 2024 - Present

    • Chief Information Officer at Nsigma JE, ranked among the top 30 JE in France.
    • Collaborated with a team to successfully document, develop and implement various internal tools (Mobile App, RAG Agent, ERP...), demonstrating effective teamwork and strong problem-solving skills.
    • Managed NSIGMA's internal informatics structure and website, optimizing processes...

Projects

Image of GUI in C

GUI in C

End year project for my first year in CS at ENSIMAG.

  • C
  • Polymorphism
Image of Prolific Joiner

Prolific Joiner

This is a project to enroll automatically in surveys on Prolific.

  • Python
Image of Cookie Clicker

Cookie Clicker

This project made learn React and NextJS with a time limit of 3 weeks with a friend.

  • Javascript
  • React
  • NextJS
Image of Mobile App for Nsigma JE

Mobile App for Nsigma JE

IOS & Android mobile app to connect students to NSIGMA offers in realtime.

  • React Native
  • TS
  • Expo
Image of RAG Agent for Nsigma JE

RAG Agent for Nsigma JE

Chatbot using RAG technology to help JE members in their daily tasks.

  • Python
  • LangChain
Image of Deca Compiler

Deca Compiler

Compiler of Deca (subset of Java) from scratch

  • Java
  • ANTLR
  • ASM
  • OOP
  • SonarQube

CTFs

I have participated in the following CTFs:

H7CTF International 2024
H7CTF International 2024
Ranked 195 out of 527 teams
PatriotCTF 2024
PatriotCTF 2024
Ranked 81 out of 1360 teams
GreHack 2024
GreHack 2024
Ranked 21 out of 38 teams
TUCTF 2024
TUCTF 2024
Ranked 19 out of 485 teams