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Arthur CrosnierAC

Arthur Crosnier

FullStack Developer

€450/day
13 projects
Annecy, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Arthur

With over 8 years of development experience, I am here to help you best meet your IT development needs with two key principles: quality and clarity. This involves a deep understanding of your project's objectives, clear and educational follow-up, and great professionalism.

My expertise is at your service. Whether you need support, advice, or development services, I am here to listen!

Arthur Crosnier
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Annecy (up to 50km), Genève (up to 20km)

Experience

  • Smart Crypto Signals
    Lead Developer - Solution de Trading & Backtesting
    TECH
    January 2025 - September 2025 (8 months)
    Conception et développement d'une plateforme complète de trading automatisé avec système de backtesting avancé.

    Architecture full-stack incluant :
    • Backend NestJS avec API REST et WebSockets pour le monitoring temps réel
    • Intégration des APIs Binance et Bybit pour l'exécution automatique des ordres
    • Système d'analyse de patterns de bougies avec détection de signaux de trading
    • Frontend d'administration React avec tableaux de bord et visualisations
    • Moteur de backtesting pour simuler et optimiser les stratégies de trading
    • Gestion d'abonnements avec Stripe et authentification sécurisée
    • Base de données PostgreSQL avec système de cache optimisé
    • Infrastructure Docker et déploiement AWS
    • Module de reinforcement learning Python pour l'optimisation des stratégies

    La plateforme permet aux traders de tester leurs stratégies sur l'historique, d'automatiser leurs positions et de gérer leur portefeuille avec des algorithmes avancés de détection de patterns.
    NestJs React.js Typescript Amazon Web Services PostgreSQL
  • Unosat
    React Developer
    AVIATION AND AEROSPACE
    November 2023 - March 2025 (1 year and 4 months)
    Design and development of an interactive storytelling website for UNESCO, highlighting 10 remarkable architectural sites such as ancient Egypt, Hegra, and other ancient sites. Each page of the site is dedicated to a specific site and integrates dynamic visual effects activated by mouse scrolling, including 3D models, text, images, and videos, thus offering an immersive and educational user experience.
    Technical Skills: Languages: JavaScript (React), Typescript, ThreeJs, Tailwind, Git, Docker
    React.js Typescript PostgreSQL NestJs Amazon Web Services
  • Bartunes
    Fullstack Developer
    ENTERTAINMENT AND LEISURE
    April 2023 - October 2023 (6 months)
    Web application in the musical field, using google, apple, spotify, stripe and facebook APIs. Management of all phases of the development cycle, from needs analysis to production deployment. Close collaboration with the client to understand their needs and propose appropriate technological solutions.

    Languages: JavaScript (React), Typescript, Node.js (Express), Tailwind CSS, REST API, Git
    React.js Typescript Redux.js NestJs Amazon Web Services

Reviews

5.0

Out of 8 ratings

AD

Account deleted

Reviewed on 12/28/2022

Great collaboration with Arthur for the creation of our new site, pleasant communication and site delivered on time, I recommend with enthusiasm!
M

Mathieu

Chilowé

Reviewed on 12/7/2022

As usual, absolutely nothing to complain about Arthur. Great communication, respect for deadlines and commitments, and a real source of advice. Top!

Recommendations

Elliot MarretEM
Antony GerardAG
FU
Elliot Marret and 2 other people have recommended Arthur

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Education

  • Computer Engineer
    Ecole 42
    2016

Certifications

  • DIGITAL TECHNOLOGIES ARCHITECT CERTIFICATE
    Ecole 42, Paris
    2016
    Javascript ES6 C++ REST C Git PHP Bash UNIX

Skill set

Categories