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Joël D.JD

Joël D.

PHP Developer | Symfony | Dolibarr | WordPress

€250/day
2 projects
Dieppe, FR
0-2 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Joël


đŸ”„ Web & mobile applications/sites designer, modern, robust, and end-to-end mastered solutions.

Passionate about tech since forever, I evolved for several years in systems & networks before specializing in development. Today, I support my clients by combining technical expertise, industrial rigor, and a global product vision.

I design and develop reliable, performant, and secure applications, taking care of the entire cycle: architecture, development, deployment, optimization, and maintenance.

🚀 What I do for you

PHP / Symfony / Dolibarr Applications
Custom WordPress Websites
Modern Front-end HTML / JavaScript & React / CSS
Secure APIs & Robust Backends
Flutter for Android / iOS Mobile Applications
SQL & NoSQL Databases
DevOps & Performance
Docker Containerization
CI/CD Pipelines
Linux Server Management, Optimization, Monitoring
Secure and Automated Production Deployment

🎯 My Added Value

Thanks to my previous experience in industrial quality (11+ years), I bring an approach focused on reliability, structure, and excellence:

✔ Clean, clear, and maintainable code
✔ Precise needs analysis
✔ Mastered processes from start to finish
✔ Rigor, organization, and autonomy
✔ Simple, transparent, and effective communication

My goal: to deliver sustainable, high-performing solutions perfectly adapted to your business reality.

đŸ€ Why work with me?

Because I don't just code:

âžĄïž I build solid solutions, designed to last, evolve, and function without unpleasant surprises.

I combine:
  • the methodology and precision of my industrial background,
  • the system vision of a former network tech,
  • the passion and creativity of a dedicated developer.

🎯 My Mission

To support you with seriousness and transparency, by putting my rigor and passion at the service of modern, mastered, and results-oriented development.
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • SAS Regards CroisĂ©s
    Malt logoOn Malt
    Custom PHP/SYMFONY Development
    DIGITAL AND IT
    February 2026 - February 2026
    Dieppe, France
    As part of this mission, my main contribution consisted of evolving an existing web business tool in production by integrating new strategic features while ensuring the stability and maintainability of the existing codebase.

    Contribution and Results Obtained

    I developed and integrated a complete commenting module including rights management, action history, and author identification, improving traceability and user collaboration.
    I also enhanced the management of statuses and workflows to streamline business processes and provide greater functional consistency.
    The implementation of automatic email notifications improved team responsiveness and action tracking.
    Finally, the addition of dynamic filters and advanced search optimized usability and saved daily time for users.

    These evolutions strengthened operational efficiency without impacting the application's stability in production.

    Responsibilities and Actions Taken

    Functional needs analysis in close collaboration with the UX/UI designer
    Backend development using PHP 8 / Symfony 6
    Doctrine entity modeling and adaptation
    MySQL / MariaDB database updates
    Implementation of email notifications (business logic + triggers)
    Integration of filters and advanced search
    Adherence to Symfony best practices (architecture, services, security, code cleanliness)
    Functional testing and validation with the designer
    Versioning and code management via Git
    The mission was completed within the deadline (3 days estimated) with clean, maintainable code compliant with framework standards.
    PHP Symfony Gitlab CI/CD HTML/CSS/JS Database Management
  • JoĂ«l DERMONT
    Designer & Developer of Custom Websites and Applications
    September 2025 - Today (9 months)
    Auppegard, France
    🚀 Web / mobile designer & developer, passionate, precise, and fully invested in each project.

    I support you from ideation to deployment to create showcase websites, e-commerce sites, blogs, web & mobile applications, and custom business tools.

    🎹 Thanks to a careful UX approach, I design intuitive, effective, and conversion-oriented interfaces for fluid and high-performing experiences.

    ⚙ I help modernize your digital presence, automate repetitive tasks, and optimize your tools to save time and improve your daily efficiency.

    đŸ’» Front-end, back-end, API, SQL & NoSQL expert, I also manage infrastructure: hosting, servers, DNS, emails, security, and performance.
    👉 Fast, reliable, secure, and durable solutions.

    📈 My philosophy: technical performance, careful UX, and intelligent automation, serving useful and scalable solutions.

    📞 Do you have a web, mobile, or automation project?
    Let's discuss it: I adapt to your needs and your budget.
    Flutter PHP Symfony HTML/CSS/JS Ajax Java
  • NIIT - Normandie IngĂ©nierie
    Systems and Network Technician
    November 2019 - August 2025 (5 years and 9 months)
    Martin-Église, France
    IT equipment maintenance. Server administration.
    Hypervisor administration. Network security.
    Server Administration Network Administration IT Maintenance Routing Software Architecture

Reviews

5.0

Out of 2 ratings

CharlesC

Charles

Fondateur - SAS Regards Croisés

Reviewed on 4/9/2026

I was once again very satisfied with Joel's work!
CharlesC

Charles

Fondateur - SAS Regards Croisés

Reviewed on 2/18/2026

I highly recommend Joel. He perfectly met our needs. He is proactive, rigorous, punctual, and very pleasant to work with daily!

Recommendations

SP
VL
Charles PeloyeCP
Sarah Perdu and 2 other people have recommended Joël

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Education

  • Application Designer Developer
    Studi
    2025
  • PHP/Symfony Developer
    Studi
    2025

Certifications

Skill set

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