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Idriss Sergio T.IS

Idriss Sergio T.

Node.js/PHP Backend Architect | Prestashop Expert

€150/day
Gatineau, CA
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Idriss Sergio

Over the past 12 years, I have worked on numerous complex web projects for e-commerce companies, startups, and digital agencies.

My expertise covers backend architecture, legacy platform migration, and the development of high-performance web applications capable of supporting business growth.

I am involved in both technical design and development, with a strong ability to analyze business needs and transform them into robust technical solutions.

I regularly work with product teams, designers, and marketing teams to build reliable, scalable, and performance-optimized platforms.

My areas of intervention include:

• Backend architecture and API design
• Node.js and PHP development
• E-commerce platform migration and redesign
• SaaS application development
• Web performance optimization
• Docker and CI/CD environment setup

I work remotely or in a hybrid model and can support startups, SMEs, or agencies needing senior technical support.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Gatineau (up to 50km), Montréal (up to 50km), Québec (up to 50km), Ottawa (up to 50km), Toronto (up to 50km)

Experience

  • IziSolutions
    Web Developer and Agency Manager
    DIGITAL AND IT
    February 2018 - Today (8 years and 4 months)
    Yaoundé, Cameroon
    • Manage and coordinate a team of developers on several web projects
    • Manage the administrative and commercial activities of the company
    • Develop and manage the maintenance of scalable web applications with PHP (Symfony), Node.js, and React.js.
    • Design and develop web and mobile solutions for various international clients (e-commerce, SaaS, business applications)
    • Implement headless architectures with Next.js and Prestashop, allowing for greater flexibility
    • Manage cloud infrastructures with AWS, Google Cloud, and Firebase, optimizing costs and scalability
    • Optimize databases and implement performant queries with MySQL
    • Implement CI/CD pipelines and automate deployments on AWS and GitHub Actions
    • Supervise and validate technical architectures, ensure adherence to best practices for development and web accessibility (WCAG)
    • Integrate Figma mockups into WordPress and Prestashop with responsiveness and performance
    • Integrate APIs (RESTful, GraphQL)
    • Train and mentor junior and intermediate developers
    • Design and develop custom websites on WordPress and Prestashop, following best practices in performance and accessibility (ACF, hooks, Elementor, Visual Composer, Divi)
    • Ensure advanced customization of Prestashop and WordPress to improve management
    • Create custom Prestashop modules and integrate new e-commerce functionalities
    • Create unit and functional tests with PHPUnit, Jest, and Cypress to ensure code quality
    • Perform corrective and evolutionary maintenance of various websites and web applications
    • Secure applications against web vulnerabilities and ensure compliance with best practices
    Prestashop Wordpress PHP/MySQL Node.js React.js
  • GECODIS
    Senior PHP & Prestashop Web Developer
    DIGITAL AND IT
    December 2023 - September 2024 (9 months)
    Paris, France
    • Participate in the migration and redesign of the e-commerce platform to PrestaShop 1.7, ensuring better stability and performance
    • Develop and integrate custom features to improve user experience (multi-shop management, integration of payment and logistics systems)
    • Optimize code and SQL queries to improve site speed and reduce loading time
    • Collaborate with design and marketing teams to align development with business objectives

    Technologies: PHP, Symfony, Smarty, MySQL, GitLab, Docker, HTML, CSS, Prestashop
    Prestashop jQuery MySQL Web Integration Web Development
  • CleanDev
    Web Developer | Project Manager
    DIGITAL AND IT
    March 2015 - February 2018 (2 years and 11 months)
    Yaoundé, Cameroon
    • Develop and customize advanced modules and plugins for Prestashop and WordPress to extend their functionality
    • Integrate graphic mockups (Photoshop, PDF, Image) and optimize user experience for e-commerce and institutional websites with Wordpress and Prestashop
    • Create custom Prestashop modules and integrate new e-commerce functionalities
    • Integrate Rest APIs for payment and delivery solutions
    • Perform corrective and evolutionary maintenance of various websites under Wordpress and Prestashop
    • Analyze databases to improve the performance and reliability of client websites

    Technologies: PHP, JavaScript, MySQL, Prestashop, WordPress, HTML/CSS.
    PHP Prestashop jQuery JavaScript MySQL

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Education

  • Baccalaureate
    University of Yaoundé 1
    2009
    Informatique fondamentale

Skill set (60)

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