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Benjamin PayouxBP

Benjamin Payoux

Développeur Backend | Node.js NestJS

€400/day
Auxerre, FR
8-15 years

Average response time: 1 hour

About Benjamin

Passionate and pragmatic backend developer with 10 years of experience, dedicated to
understanding real-world client challenges when building backend systems and REST APIs.
I thrive on designing simple, maintainable, and scalable architectures that balance performance, reliability, and security.
My expertise spans high-performance APIs, real-time systems, and WebSockets, with a
strong focus on simple code, unit testing, and system optimization to ensure efficiency and
maintainability.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Auxerre (up to 10km), Paris (up to 10km)

Experience

  • Cometh
    Backend Developer
    VIDEO GAMES AND ANIMATION
    November 2021 - March 2025 (3 years and 4 months)
    Paris, France
    Blockchain technology company specializing in Web3 infrastructure tools and gaming. It develops solutions that simplify blockchain adoption for users and businesses, including Cometh Connect, Cometh Marketplace, and Cometh Checkout. With a strong focus on innovation, Cometh creates next-generation games and tools that integrate decentralized technologies seamlessly.

    • Led the backend development for Cosmik Battle TCG, implementing REST APIs and WebSockets for real-time gameplay.
    • Managed a scalable infrastructure, handling 20,000+ registered users and 5,000 daily active players, optimizing server performance under high load.
    • Implemented performance optimizations and concurrency management.
    • Maintained high code quality standards through unit testing, PR reviews, and architectural best practices.
    • Integrated Cometh blockchain tools for NFT card generation.
    • Developed Cometh web site and tools for blockchain users.
    Node.js MongoDB Jest Socket.io Redis
  • Frianbiz
    Partner & Lead Developer
    DIGITAL AND IT
    December 2011 - August 2020 (8 years and 8 months)
    Les Ulis, France
    Technology consulting and development company specializing in web and mobile applications, backend infrastructure, and API-driven platforms. It delivers tailored software solutions for both startups and major enterprises, working with clients such as Orange, L'Oréal, and GRDF. With a strong focus on scalable architectures, high-quality development, and technical consulting, Frianbiz successfully exited and joined Maltem Group, enhancing its impact in digital transformation and enterprise solutions.

    • Delivered dozens of projects for startups and enterprises, specializing in web, mobile, and backend development using Laravel and modern frameworks.
    • Established a culture of quality with unit testing, clean code, and architectural best practices.
    • Designed and implemented backend infrastructures for various mobile applications, websites, and API-driven platforms.
    • Conducted pre-sales activities, including writing technical specifications, project estimations, and proposal drafting.
    • Mentored junior developers
    PHP Laravel TDD TailwindCSS JavaScript

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Education

  • RNCP Certified Expert in Digital Strategy (Level 7 – Master's Equivalent)
    Digital Campus
    RNCP Certified Expert in Digital Strategy (Level 7 – Master's Equivalent)
  • Bachelor's Degree in Computer Science, specialization in Software Development
    University Institute of Technology
    Bachelor's Degree in Computer Science, specialization in Software Development

Skill set

Categories