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Jonathan Van RaemdonckJV

Jonathan Van Raemdonck

Mobile Developer đŸ“± Legacy Project Refactoring

€540/day
2 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jonathan

Independent developer since 2020, I meet your needs for high-performance and innovative **cross-platform applications**.
I am here to help youdigitize your Success Story!

I can work on new projects, bring your ideas to life, but the core of my expertise is taking your old apps andgiving them a second life!

đŸ“±Mobile DevelopmentđŸ“±

‱ Android / iOS Applications
‱ Cross-platform Applications
‱ Custom Development
‱ Continuous Evolution
‱ Evolving Maintenance
‱ Bug Fixing
‱ Performance Optimization

🔑Key Skills🔑

‱ Mobile Development (Flutter - React Native - MAUI - Xamarin)
‱ API Integration
‱ Local Storage & Databases
‱ Debugging
‱ Unit Tests

🏆Other Skills🏆

‱ Fullstack Web Development Node/React
‱ PHP/Symfony Web Development
‱ Notions of .NET MAUI, Kotlin, Unity

đŸ’»Why Hire MeđŸ’»

With nine years of experience in mobile development, specializing in evolving maintenance and refactoring, I can fix your app's bugs, improve its features, develop new ones, or start from scratch to create a modern, reliable product that your clients will love to use !

My independence and availability allow me to be 100% attentive to your needs, to create the application that suits you.

⌚Availability⌚

✅ Available 7 days a week to discuss your project
✅ Response within the hour
✅ Available for full-time, part-time, or occasional needs

⭐Currently Available!⭐

You know what you need, and my profile matches your expectations?
Hesitating on a technical point or the approach to take?
Just starting with your idea and need advice?

Contact me!
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Japanese

    Basic

Remote only
Primarily works remotely

Experience

  • IndĂ©pendant
    Freelance Mobile Developer - I give your mobile apps a second life!
    SOFTWARE PUBLISHING
    September 2020 - Today (5 years and 9 months)
    Metz, France
    Mobile developer since 2016 and freelance since 2020, I put my expertise in the .NET environment to work for the maintenance, modernization, and evolution of existing mobile applications.

    As a C#/.NET specialist, I have also developed solid experience in Flutter over the last two years, allowing me to work on a wide variety of mobile projects, whether cross-platform or native.

    💡 My services:
    - Maintenance and improvement of existing applications
    - Modernization and upgrade of aging apps
    - Development of new versions or complete "v2s"
    - Occasional interventions on C# projects for software or web
    - Adaptation and development on other mobile technologies (Flutter, Kotlin, etc.)

    My goal: to dust off and update your mobile applications so that your users continue to use your services optimally.
    Mobile Development Correction Optimization Maintenance .NET
  • Metz Numeric School
    Trainer in .NET and Mobile Application Development
    EDUCATION AND E-LEARNING
    February 2022 - December 2022 (10 months)
    Metz, France
    Application Design Developer Trainer - Specializing in .NET and Mobile Development
    Introduction to basic programming concepts:
    - Object-oriented programming
    - Basic concepts (inheritance, don't repeat yourself, modularity, algorithms...)
    - Mobile & responsive development

    Cross-platform development with .NET & Xamarin packages, project management, peer programming...
    C# .NET Mobile Development Higher Education Xamarin
  • Predict
    Mobile Application Developer
    SOFTWARE PUBLISHING
    May 2020 - August 2020 (3 months)
    Nancy, France
    Mobile Developer - Xamarin.Android/Xamarin.Forms

    Responsible for the evolving maintenance and development of new features for the Predict mobile application, a tool for monitoring and predicting machine tool failures through the collection of data from connected sensors and a powerful predictive maintenance algorithm.
    Xamarin Forms Android C# Xamarin Xamarin.Android

Recommendations

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Léa Frati and 1 other person have recommended Jonathan

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Education

  • Master 2 - Expert in Computer Science and Information Systems
    Supinfo International University
    2016

Certifications

Skill set

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