
Développeur full-stack
Chez Carrefour, Guillaume a dirigé la création de systèmes de paniers et de caisses, générant des millions de chiffre d'affaires et démontrant sa capacité à transformer des idées en solutions efficaces.
Guillaume se distingue par sa capacité exceptionnelle à envisager chaque projet dans une perspective plus large. De l'optimisation du code à la coordination avec les équipes, il veille à ce que les projets ne soient pas seulement efficaces, mais aussi excellents. En tant que leader technologique mettant l'accent sur la collaboration, Guillaume obtient des résultats exceptionnels tout en favorisant un environnement de travail agréable et productif.






Took over a Symfony 2 platform as Technical Architect, leading a team of four developers;
Restored the deployment pipeline from development to production environments using Capifony;
Installed, configured, and administered Mantis BT for issue tracking and project management;
Designed and developed custom features using PHP 5.4, Symfony 2, Doctrine 2 ORM, HTML5, Bootstrap 3 for responsive design, jQuery, and jQuery-ui;
Implemented a REST API using FosRestBundle to enable integration with external systems;
Installed, configured, and managed a Magento 1.9 application, establishing connectors between Magento and Symfony 2 via SOAP API V2;
Researched and integrated Mirakl Marketplace management tools to extend eCommerce functionality. Managed MySQL databases, ensuring performance and reliability;
Conducted unit testing with PHPUnit for both Symfony 2 and Magento applications;
Managed version control with Subversion 1.8 to maintain code consistency;
Led the transition from Agile to SCRUM methodologies, utilizing Jira and Confluence for task management and documentation;
Provided IT architecture consulting to the client, ensuring the platform met business and technical requirements.

Authored technical and functional specifications to guide development and ensure alignment with project requirements;
Designed and developed custom features using PHP 5.3, MySQL, XHTML, CSS, Mootools, Doctrine 1.2 ORM, Silex micro framework, and Symfony Components;
Managed continuous integration processes using Jenkins to streamline development workflows;
Utilized and enhanced the proprietary I-Marchand framework to meet evolving business needs;
Managed databases with MySQL, ensuring optimal performance and data integrity;
Developed unit tests with PHPUnit and functional tests with Behat to ensure code quality and reliability;
Provided technical supervision and guidance to a team of developers to foster skill development and maintain high standards;
Collaborated with the team using Jira, Confluence, and Subversion for task management, documentation, and version control;
Worked with the SCRUM methodology, serving as an interim SCRUM Master to facilitate agile practices;
Conducted technology monitoring and migration studies for upgrading to PHP 5.5.

Designed and developed web applications on the LAMP platform (Linux, Apache, MySQL, PHP);
Wrote detailed technical specifications to ensure clear project requirements and smooth development;
Developed and maintained features using PHP 5, XHTML, and the Symfony 1.4 framework with Doctrine ORM for database interaction;
Managed the maintenance and enhancement of an application built on Joomla 1.5;
Utilized and improved the proprietary I-Marchand framework to meet evolving business needs;
Managed MySQL databases, ensuring data consistency and performance;
Developed unit tests with PHPUnit to maintain code quality and reliability;
Collaborated effectively with the team using Jira for task tracking and Subversion for version control;
Followed the SCRUM methodology to promote agile development practices and ensure timely delivery.

Developed websites using PHP 5 with the Symfony framework and Doctrine ORM for efficient database interaction;
Developed a website using Magento 1
Integrated HTML content to ensure a seamless and responsive user experience;
Implemented AJAX content integration using jQuery to enhance website interactivity and performance;
Wrote unit and functional tests to ensure the reliability and functionality of the codebase;
Collaborated with the team using Trac for task management and Subversion for version control;
Managed databases with MySQL and Oracle 10g, ensuring optimal data performance and integrity.

Designed and developed internal company applications to enhance business operations;
Authored functional and technical documentation to ensure clear communication and alignment with project requirements;
Created prototypes to visualize and validate application functionality before development;
Developed applications using PHP and XHTML with the Symfony framework and Propel ORM for data management;
Integrated AJAX content to improve interactivity and user experience;
Managed data manipulation with Active Directory, ensuring secure and seamless access control;
Administered Oracle 10g databases to ensure data consistency and system performance.
Excellence en ingénierie
Les performances globales de Guillaume lors d'une évaluation technique en direct de 90 minutes se classent dans le top 5% des Développeur full-stack évalués chez Proxify.






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