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Roger K.RK

Roger K.

Full-Stack Mobile Developer (React / Node.js)

€200/day
1 project
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Roger

Web Developerfreelance specializing inweb development**, **website creation**, and custom **web application development**. I support companies, startups, and entrepreneurs in their **front-end**, **back-end, and full-stack web developmentprojects.

Experience in creating professional websites, **web platforms**, dashboards, business tools, and **high-performance web applications**. I develop modern, fast, and responsive interfaces, adapted to technical and business needs.

Core Skills as a Developer

  • Web Developer
  • Front-end Development
  • Back-end Development
  • Full-Stack Development
  • Web Application Development
  • Custom Website Creation
  • Responsive Web Integration
  • API Connection / REST API
  • Web Project Maintenance and Improvement
  • Bug Fixing and Code Optimization

Development Technologies Used

  • JavaScript
  • React
  • Node.js
  • HTML5
  • CSS3
  • PHP
  • REST API
  • SQL / Databases
  • Git

Developer Mission Types

  • website development
  • web application development
  • React development
  • JavaScript development
  • Node.js development
  • front-end integration
  • web platform creation
  • web application maintenance
  • code improvement and refactoring
  • full-stack development
I offer clean, maintainable, and scalable code, with an approach focused on performance, reliability, and quality of web development.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • MecaFive
    Marketplace
    AUTOMOBILE
    February 2026 - Today (4 months)
    Development of a car garage marketplace application allowing clients to search for garages, view their services, and book appointments online. The application will be cross-platform (web and mobile)

    Objectives

    Create a simple and intuitive platform that facilitates the connection between clients and garages, while allowing garages to manage their availability and appointments.

    Expected Outcome

    A functional and responsive application, accessible on mobile and web browsers, that simplifies appointment management for garages and improves the customer experience.
    JavaScript React.js React Native Node.js Web Development
  • Flashlab
    Marketing & B2B Sales Manager for Industrial and Environmental Analysis Solutions
    ENVIRONMENTAL
    January 2025 - October 2025 (9 months)
    Prospect and qualify new leads.
    Develop strategic partnerships
    Participate in marketing activities and trade shows to promote Flashlab's services.
    Content creation (writing, visuals, videos)
    Management of advertising campaigns (Google Ads, Facebook Ads)
    Social media management (LinkedIn, Facebook)
    Reactivity Business Development Adaptability Social Media Digital Communication
  • Meilleur Habitat de France,
    B2C Sedentary Sales Representative in Renewable Energy
    December 2023 - June 2024 (6 months)
    92230 Gennevilliers, France
    Telephone prospecting: a total of 130,000 euros in revenue generated. Expand our network by recruiting new partners.

Reviews

5.0

Out of 1 rating

F

Fodé

MVP d’une application de prise de rendez-vous dans les garages - SANKÉ TECH Inc.

Reviewed on 5/12/2026

Mr. Roger is an excellent developer who pays close attention to the quality of his work. I was completely satisfied with his work. He properly honored his commitments regarding the agreed-upon clauses at the beginning of our collaboration. The agreed-upon functionalities met my expectations. I highly recommend him to anyone who wants a reliable mobile application.

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Education

  • Bachelor - Marketing and Communication Project Manager
    PPA Business School
    2026
    Marketing et communication
  • BTS Negotiation and Digitalization of Customer Relations
    Euridis Business School
    2024
    Négociation commercial Marketing Marketing digital Branding SEA référencement naturel

Certifications

  • Fundamentals of Digital Marketing
    Google
    SEO SEA

Skill set

Categories