Freelancer profile translated to English.
Back to original languageAbout Houssem
Tech Lead & Full-Stack Developer with 14 years of experience in designing and developing backend and frontend web applications.
I assist companies, from startups to large corporations, in creating from scratch, technical redesign, and performance optimization.
Passionate about software architecture and best practices, I apply SOLID principles, DDD, and hexagonal architecture to deliver reliable, maintainable, and scalable solutions.
Working Method
Agile Collaboration (Scrum), strong communication with business and technical teams.
Clean Code and TDD approach to ensure quality and robustness.
Implementation of CI/CD pipelines for fast and secure deployment.
Ability to intervene across the entire project lifecycle, from design to production.
Notable Achievements
Mesdepanneurs.fr: Development and optimization of a high-traffic platform for connecting clients and service providers.
Business applications for Engie: Design and implementation of complex internal tools for operational management.
Development of internal applications integrating workflows and critical services.
Technical Stack
Frontend
- Vue.js, Nuxt 3, React
- JavaScript / TypeScript
- HTML5, CSS3, Bootstrap, Ajax, jQuery, Primevue, Tailwind.
Backend
- PHP 7/8 (Symfony 4→7, CakePHP 3/4, Drupal 7→10)
- REST API, API Platform
- Doctrine ORM
- MySQL, PostgreSQL, MongoDB, Supabase
Architecture & Methodologies
- Microservices, Clean Architecture, Hexagonal Architecture
- SOLID, TDD, Agile Scrum.
Infrastructure & Tools
- AWS (SQS, SNS, SES), Docker, Git, CI/CD (GitLab)
- Git, GitLab, PhpStorm, NetBeans, Cursor, Claude code
📅 Availability: open to remote or on-site missions in Île-de-France.
💬 Languages: French (native), English (professional)
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- MesDépanneurs.frTech Lead / FullStack DeveloperCIVIL ENGINEERINGDecember 2019 - Today (6 years and 8 months)Paris, France
- SI Refactoring: development of the front-end with Vue.js / Nuxt 3, applying SOLID principles and hexagonal architecture to ensure maintainability and scalability.
- Implementation of unit and integration tests to guarantee the quality and reliability of the produced code.
- Collaboration with functional teams to ensure the quality of developed solutions.
- Migration to microservices: database design, implementation of a distributed architecture, and interconnection via robust REST APIs.
- Application Architecture: adoption of Clean Architecture and Hexagonal Architecture to structure code and reduce technical debt.
- Business application development: User management with access control (ACL). Customer complaint management, Order management to optimize internal processes.
- Website development: specific modules on mesdepanneurs.fr via Drupal / Symfony, integration of third-party services, performance optimization.
- Technical Stack :
• Back-end: PHP 7/8, Symfony 4→7, Doctrine, API Platform, Drupal 7→9.• Front-end: JavaScript, TypeScript, Vue.js, Nuxt 3.• DevOps / Cloud: Docker, Git, AWS (SQS, SNS, SES), REST. - ENGIELead DeveloperENERGY AND UTILITIESJanuary 2018 - January 2019 (1 year)Bagneux, France
- Technical Leadership: team management, code review, mentoring to foster skill development of developers.
- Key Features: Management of the referral program (new platform). Payment module for the MyPower offer.
- Innovation & Prototyping: development of POCs and prototypes to test and validate new features before production.
- Software Quality: writing technical specifications, participating in functional specifications with the Product Owner, developing and executing unit tests.
- Production & Cloud Deployment: regular deployment of new versions on AWS, optimization of performance and service reliability.
- Cross-functional Collaboration: participation in workshops and meetings with business teams to align technical solutions with business needs.
- Technical Stack :
• Back-end: PHP 7, CakePHP 3, ORM, PhpUnit, REST API, AWS.• Front-end: HTML5, CSS, Ajax, jQuery, Vue.js, Bootstrap.• Tools & DB: MySQL, Git, PhpStorm, GitLab, Redis. - ENGIESenior PHP DeveloperENERGY AND UTILITIESJuly 2014 - January 2018 (3 years and 6 months)Bagneux, France
- Maintenance and Evolution: handling 7 sub-applications of the Pilotage platform, addressing various business needs: Management of customers with incorrect or missing billing. Tracking specific offer requests. Complaint management.
- Architecture and Framework: implementation of an internal PHP framework based on MVC architecture to standardize and accelerate development.
- Key Developments: IVR: monitoring and updating waiting messages on the Interactive Voice Response system. CELTIC: managing customers at risk of leaving for competitors. LINKY: managing integrations for new connected meters.
- Specific Modules: Mass SMS sending. Sending emails with attachments in the SAMOTRACE application.
- External Integrations: development and consumption of Web Services for interoperability with other systems.
- Business Collaboration: writing technical specifications and participating in workshops with business teams.
- Technical Stack :
• Back-end: PHP 5, CakePHP, MVC, Web Services.• Front-end: HTML5, CSS, Ajax, jQuery, Bootstrap.• Tools & DB: MySQL, Git, NetBeans.
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Education
- National Engineering DiplomaInstitut Supérieur d’Informatique2011Génie du Logiciel et des Systèmes d’information
- University Technology DiplomaInstitut Supérieur d’Informatique2008Technologies des systèmes d'information et de communication