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Julien SchmittJS

Julien Schmitt

Senior Backend PHP Developer | Laravel

€550/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

I help companies design, stabilize, and evolve their Laravel applications.

I specialize in backend and robust web architectures, assisting companies in stabilizing, modernizing, and scaling their critical applications.

I primarily work on high-volume PHP environments, legacy systems that are difficult to maintain, or platforms requiring a more reliable and scalable architecture.

Specifically, I handle:
– Taking over and quickly understanding existing systems
– Fixing stability and performance issues
– Evolving APIs and databases
– Targeted refactoring
– Implementing sustainable best practices (testing, organization, debt)
– Supporting and upskilling teams

Types of missions sought:
– Senior backend reinforcement / technical lead
– Stabilizing a production platform
– Progressive modernization of a Laravel application
– Long-term or structuring missions

Available for missions in PHP development, Laravel, scalable backend, and web application modernization, fully remote.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • JULIEN SCHMITT EI
    Backend Developer
    DIGITAL AND IT
    August 2025 - Today (1 year)
    Paris, France
    Mazarine Client:
    My main mission is to develop new features for the websites of the **Paris National Opera**.

    My actions:
    • Implementation of a new version of the booking module for visits to the Opéra Garnier.
    • Integration of Elasticsearch and development of a search engine on the Play Opéra Paris website, allowing users to more easily find streaming and live content.
    Laravel Elasticsearch PHP
  • Mazarine
    Lead Developer
    DIGITAL AND IT
    March 2018 - June 2025 (7 years and 4 months)
    Paris, France
    • Mentoring, coaching, and supervising developers.
    • Resolving complex technical problems.
    • Organizing R&D and Proof of Concept activities.
    Laravel Lead Developer:
    • On projects for the **Paris National Opera**: institutional website, Aria, and Play Opera Paris. +600K users/month (25K/day).
    • On the Smartplayer project: simultaneous live video player worldwide with advanced features.
    Symfony / Node.js Developer for internal reporting tools for > 150 employees.

    Optimization and high-traffic management (Elasticsearch, Varnish, and Redis).
    Laravel Varnish Redis Elasticsearch PHP
  • Les Comptoirs
    Back-end Developer
    DIGITAL AND IT
    July 2015 - February 2018 (2 years and 7 months)
    Paris, France
    • Symfony / Zend Framework 2 Developer on Headless projects in the banking/insurance sector (BNP / Mutuelle générale / Europ Assistance).
    • Performance optimization, Redis implementation.
    Symfony Redis PHP PostgreSQL

Recommendations

Baptiste NonatBN
Aurelie TouretteAT
Raphael K.RK
Baptiste Nonat and 2 other people have recommended Julien

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Education

  • Professional Bachelor's Degree in Multimedia
    ESIC (School of Information and Communication Technology)
    2007
    Licence professionnelle Multimédia
  • BTS IG, application developer option
    2006
    BTS IG, option développeur d'application

Skill set

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