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Lotfi DridiLD

Lotfi Dridi

Expert backend critique & performance Symfony

€500/day
Chatou, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lotfi

Senior PHP/Symfony developer with over 10 years of experience in designing and operating critical, high-traffic backend platforms.

I primarily work on:

• Robust REST APIs with Symfony & API Platform
• Maintainable and scalable backend architectures
• Performance optimization (TTFB, application cache, Redis, reverse proxy, CDN)
• Advanced security (JWT, RBAC, complex business rules)
• Asynchronous processing (Symfony Messenger, RabbitMQ)
• Heavy technical migrations (Symfony, MySQL → PostgreSQL)
• Demanding production environments (CI/CD, Docker, monitoring)

I have worked on contexts with strong reliability and load constraints such as:

✔️ Critical B2B platforms
✔️ Media APIs with very high audience (real-time traffic peaks)
✔️ SaaS products exposed on web & mobile

Accustomed to Agile environments, I place a strong emphasis on:

→ Code quality
→ Long-term performance
→ Production stability
→ Product & business collaboration

Main Stack:
Symfony 5/6/7 · PHP 8.x · API Platform · PostgreSQL · Redis · RabbitMQ · Docker · CI/CD · React.js

🎯 Goal: build solid, high-performance backends ready to scale.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Chatou (up to 30km)

Experience

  • SUEZ
    Senior PHP / Symfony & React.js Developer — Critical B2B Platforms
    ENVIRONMENTAL
    November 2024 - Today (1 year and 7 months)
    Le Pecq, France
    Development and evolution of core product APIs exposed to multiple consumers (web, mobile) in a performance and security-sensitive environment.

    Key achievements:

    Design of robust REST APIs with Symfony & API Platform
    Advanced backend structuring (DTO, complex business rules, validation)
    Fine-grained endpoint security (JWT, RBAC, ownership)
    PostgreSQL performance optimization (critical queries, indexing, TTFB)
    Implementation of application and HTTP caching strategies
    Development of React.js frontend features
    Active contribution to production stability (logs, monitoring, refactoring)
    Symfony PHP PostgreSQL API Platform Microsoft Azure
  • Reactis Services
    Senior PHP / Symfony & React.js Developer
    DIGITAL AND IT
    June 2023 - September 2024 (1 year and 3 months)
    Paris, France
    Context

    Involvement in several SaaS client projects and business platforms.

    Missions & achievements

    Development of REST APIs from scratch with Symfony
    Implementation of clean and scalable backend architectures
    Development of React.js frontends connected to the APIs
    Dockerization of projects and CI/CD pipelines
    Continuous improvement of performance and code quality
    Participation in technical choices and best practices
    PHP Symfony API Platform MySQL Docker
  • OMNES EDUCATION
    Senior PHP / Symfony Developer
    EDUCATION AND E-LEARNING
    August 2022 - June 2023 (10 months)
    Paris, France
    Context

    Educational platforms with complex user journeys and CRM integrations.

    Missions & achievements

    Development of core APIs for student journeys
    Integration of external CRM systems
    MySQL to PostgreSQL database migration
    Implementation of asynchronous processing for reliability and performance
    Optimization of backend and critical queries
    Symfony PhpStorm Ubuntu PostgreSQL Docker

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Education

  • Computer Science and Multimedia
    Isamm
    2016

Skill set (13)

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