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Marius DevannesMD

Marius Devannes

Freelance web developer

€250/day
Sablé-sur-Sarthe, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marius

Freelance web developer and founder of MD Service, I help freelancers, artisans, shopkeepers, and small businesses create modern, clear, and professional websites, as well as functional web applications tailored to their needs.

I can assist you with creating a showcase site, a landing page, a portfolio, or a custom web application. The goal can be to present your business, generate leads, automate a task, simplify your organization, or create a business tool adapted to your way of working.

I handle the project structure, integration, responsiveness, contact form, API connection, data display, form management, and deployment.

I mainly work with React.js, JavaScript, HTML5, CSS3, Git, Vercel, and Render. I also have full-stack skills with Java, C#, C++, SQL, MySQL, MariaDB, REST API, and database management.

Thanks to my corporate experience, I am used to working on complete projects: web interfaces, dynamic forms, business logic, data display, bug fixing, application maintenance, and user experience improvement.

My approach is simple: understand your needs, propose a clear solution, and then deliver a clean, reliable, and easy-to-use tool.

Portfolio: portfolio-md-service.vercel.app
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • MD Service
    Freelance web developer
    May 2026 - Today (1 month)
    Sablé-sur-Sarthe, France
    Founder of MD Service, I offer the creation of modern websites for freelancers, artisans, shopkeepers, and small businesses.

    I support my clients from idea to deployment: site structure, page creation, responsive integration, contact form, display optimization, and deployment.

    I mainly work with React, JavaScript, HTML, CSS, Git, Vercel, and Render. My goal is to create clear, professional, and easy-to-use websites that allow clients to showcase their business and generate leads.

    I can create showcase sites, portfolios, landing pages, web interfaces, and custom projects according to needs.
    React.js JavaScript
  • LDC Service
    IT Developer
    January 2025 - Today (1 year and 5 months)
    Sablé-sur-Sarthe, France
    Development and maintenance of internal web applications in a professional environment.

    I participate in the evolution of business applications with complex business needs, web interfaces, dynamic forms, reusable components, and data management features.

    My work includes needs analysis, new feature development, bug fixing, improving interface usability, and integrating front-end and back-end components.

    Technologies and skills used: Java, JSP, JavaScript, HTML, CSS, SQL, MVC architecture, Git, web components, interface integration, application maintenance, and teamwork.

    This experience has allowed me to strengthen my rigor, my ability to understand existing projects, and to deliver reliable solutions in a professional context.
    JavaScript HTML5/CSS3 Fullstack Java JSP
  • SREM Technologies
    Software Developer Apprentice
    September 2023 - August 2024 (11 months)
    La Flèche, France
    Development and maintenance of software applications in a professional environment.

    I participated in the creation and improvement of application interfaces, data management, and the integration of business features. This experience allowed me to strengthen my skills in software development, needs analysis, bug fixing, and teamwork.

    Technologies used: C#, XAML, WinUI 3, UWP, MAUI, SQL, Git, Figma, and Agile/Scrum methods.

    This apprenticeship provided me with real-world experience, with concrete projects, client constraints, and a particular focus on code quality and user experience.
    Fullstack C# WinUI SQL .NET

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Education

  • BUT Informatique - Software Development
    BUT Informatique La Rochelle
    2024
    Formation en développement informatique orientée programmation, développement web, bases de données, conception logicielle, gestion de projet et travail en équipe. Compétences acquises : Java, C#, JavaScript, HTML, CSS, Python, SQL, MariaDB, Git, méthodes agiles et développement d’applications.

Skill set

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