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Quentin Robert De BeauchampQR

Quentin Robert De Beauchamp

Fullstack Developer | Web & AI

€300/day
3 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Quentin

Hello,
I am a back-end developer (with fullstack experience) based in Paris, holding a Master's degree in Artificial Intelligence, Data, and Algorithms from the 42 school.

After more than two and a half years at Cometh, where I contributed to the Cosmik Battle game (TypeScript, Express, MongoDB), managed backend gameplay logic in TDD (Jest), participated in production deployments, and worked on their Account Abstraction SDK (ERC-4337), with a front-end part in React, I am now launching myself as a freelancer.

At the 42 school, I led several projects in Python (available on my GitHub accessible from my Malt profile) and trained myself in FastAPI to develop secure and high-performance back-end services. I also have good experience in infrastructure (Docker, Kubernetes) and a solid background in low-level programming (C/C++) thanks to my studies at 42.

Passionate about innovation, I remain curious and dynamic to take on new challenges, whether in AI, web, or web3 (blockchain).
If you are looking for a versatile developer, do not hesitate to contact me!
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • SINENSIS CONSULTING
    Malt logoOn Malt
    Integration of Mondial Relais Widget on a website
    April 2025 - April 2025
    Paris, France
    Integration of the Mondial Relay widget on a website under construction, implementation of different delivery modes and dynamic display logic based on the selected mode.
    Typescript JavaScript Front-End Development Fullstack Web Integration HTML/CSS
  • Cometh
    Backend/Fullstack Web/Web3.0 Developer
    ENTERTAINMENT AND LEISURE
    September 2022 - Today (3 years and 9 months)
    Paris, France
    As a Backend/Fullstack Developer at Cometh, a cutting-edge video game and Web3 solutions studio, I played a key role in the development and maintenance of their innovative blockchain-based video game. My responsibilities spanned from Backend to Frontend, with a strong focus on integrating Web3 technologies.

    - Frontend:

    Development and maintenance of the game's NFT marketplace, using React and TypeScript.
    Creation of interactive and high-performance user interfaces, ensuring a fluid and engaging user experience.
    Active participation in the design and continuous improvement of several front-end pages of the game.

    - Backend:

    Maintenance and updating of game-related backend functionalities, using Node.js, Express, TypeScript, Docker, and MongoDB.
    Integration and management of interactions with the Ethereum and Polygon blockchains, focusing on the compatibility and efficiency of Web3 transactions.
    Development of robust and scalable back-end solutions, ensuring the security and stability of the game.
    Methodology and Key Skills:

    Use of the Agile methodology for flexible and responsive project management, allowing for rapid adaptation to changing project needs.
    Close collaboration with development and design teams to ensure technical and visual consistency.
    In-depth expertise in creating blockchain-based gaming experiences, with a deep understanding of NFTs and their integration into gameplay.
    At Cometh, my role was essential in harmonizing the technical aspects of the game with blockchain innovations, thereby contributing to the creation of a unique and avant-garde gaming experience for users.
    Solidity Typescript Docker MongoDB React
  • 42
    Master AI - Web
    EDUCATION AND E-LEARNING
    September 2020 - April 2025 (4 years and 8 months)
    Paris, France
    Within the Master's program in AI, Web & Data at 42, I first studied low-level programming in C, then explored various languages like TypeScript to develop web projects (Tinder, multiplayer Tetris, etc.), with and without frameworks. On the AI side, I designed several applications in Python, including a deep neural network from scratch for tumor detection and an EEG interface for movement prediction. I also explored Docker and Kubernetes for orchestration, and delved deeper into assembly language during the common core curriculum.
    Python Typescript Artificial Intelligence Back-End Development Front-End Development C++ C Docker

Reviews

5.0

Out of 2 ratings

GeoffreyG

Geoffrey

SINENSIS CONSULTING

Reviewed on 4/29/2025

Top experience, Quentin was available, fast, and efficient. I recommend him :)
GeoffreyG

Geoffrey

SINENSIS CONSULTING

Reviewed on 5/19/2025

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Education

  • Master in Artificial Intelligence, Data, and Algorithms
    École 42
    2025

Skill set

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