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Youssef IdelhadjYI

Youssef Idelhadj

PHP/Symfony Developer - React

€550/day
Évry, FR
8-15 years

Average response time: 1 hour

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About Youssef

Hello! I am a PHP Symfony/React developer with a solid 9 years of experience in building performant and scalable web applications. Whether it's for an e-commerce project, a custom platform, or optimizing an existing application, I put my expertise at your service to meet your technical and business needs.

What I offer:
- Symfony backend development (APIs, database management, security)
- Application redesign & optimization (performance, scalability, maintenance)
- Integration of third-party tools (payment, web services, external APIs)
- Deployment & hosting (Docker, CI/CD, servers)

Why choose me?
- Pragmatic and results-oriented approach
- Clean, maintainable code compliant with Symfony best practices
- Respect for deadlines and transparent communication

Let's discuss your project. I'm available to chat and help you bring your ideas to life.
  • English

    Fluent

  • French

    Native or bilingual

  • Arabic

    Native or bilingual

Can work on-site
Évry (up to 50km), Paris (up to 10km)

Experience

  • Foncia
    FullStack Web Developer
    REAL ESTATE
    July 2025 - Today (11 months)
    Paris, France
    - Develop new features proposed by the product team
    - Define and enforce development best practices (clean code, code review, performance, security).
    - Ensure the quality of deliverables (tests, stability, maintainability).
    - Develop with an approach focused on simplicity and pragmatism.
    - Actively participate in team life and agile ceremonies
    - Propose evolutions and optimizations to improve the product (robustness and performance)
    PHP Symfony React.js Docker Agile methodology Gitlab CI/CD
  • TotalEnergies
    Fullstack Developer
    ENERGY AND UTILITIES
    May 2021 - June 2025 (4 years and 1 month)
    92500 Rueil-Malmaison, France
    ▪ Participate in Frontend and Backend development of all technical features of the sites.
    ▪ Comply with IT development quality procedures (documentation, coding quality, data structure quality…).
    ▪ Work within continuous integration and deployment processes.
    ▪ Prepare and perform unit and functional tests.
    ▪ Participate in corrective maintenance based on anomaly criticality.
    ▪ Participate in the evolutionary maintenance of the sites.
    ▪ Define the methods and technical standards to be used as well as the most suitable application architecture.
    PHP/MySQL Symfony 5 React.js JIRA Git
  • ILYEUM
    Study and Development Engineer
    DIGITAL AND IT
    March 2020 - April 2021 (1 year and 1 month)
    Paris, France
    Backend specific development realization.
    ▪ Work on the design and development of the project.
    ▪ Ensure the maintenance of the existing application (bug fixes, optimizations).
    ▪ Pay attention to code quality (code review, technical points with the Lead Developer, implementation of best practices).
    ▪ Propose technical solutions.
    ▪ Test, implement and evolve solutions.
    ▪ Install a Docker environment on the project.
    ▪ Develop new features and maintain the back office side.
    ▪ Participate in the various "agile" rituals of the Scrum methodology (daily meetings, sprint reviews…).
    ▪ Perform initial tests before code delivery and carry out post-acceptance corrections in conjunction with the Product Owner.
    ▪ Ensure corrective and evolutionary maintenance of the developed modules, with the support of our internal ticketing tool (JIRA).
    PHP 7 Symfony 4 React.js HTML5/CSS3 Docker

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Education

  • Master 2 (M2), Foundations of Computer Science and Software Engineering
    Paris-Sud University (Paris XI)
    2016
    Master 2 (M2), FIIL - Fondement de l'Informatique et l'Ingénieurie des Logiciels
  • Master's degree, IMPAIRS - Information and Mobility, Programming, Algorithms for the Internet, Distribution and Systems
    Paris Diderot University
    2015
    Master's degree, IMPAIRS - Information et Mobilité, Programmations, Algorithmes pour Internet, Répartition et Système

Skill set (38)

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