You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Baptiste FehrenbachBF

Baptiste Fehrenbach

Expert Symfony | Audit & Debug SaaS

€555/day
5 projects
Rouen, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Baptiste

Bug critique ? Application compromise ?

I help teams fix, stabilize, and evolve Symfony applications quickly, whether on issues of bugs, performance, or product evolution.

Frequent Interventions
Debug complex problems on Symfony applications (production or staging)
Fix bugs and unexpected behaviors on APIs or SaaS
Technical audit of code, architecture, and performance
Optimization of application performance and queries
Stabilization of existing applications before or after production release
Takeover and improvement of legacy Symfony code
Development or evolution of features on existing projects

Objective:Make your application more reliable, faster, and more maintainable

My Approach
Rapid analysis of the context and existing code
Identification of root causes (not just symptoms)
Clean, maintainable, and production-ready fixes
Clear communication, including with non-technical teams
Prioritization of business and technical impacts

Types of Missions
One-off technical audit
Intervention on bugs or incidents
Performance optimization
Support on ongoing projects
Continuous improvement of existing applications

Main Stack
Symfony • API Platform • PHP • MySQL • Docker • Vue.js

Availability
Available for one-off interventions or targeted missions on existing Symfony applications.

Explain your problem to me, I'll respond quickly with an initial analysis and a resolution approach.
  • French

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Rouen (up to 10km), Paris (up to 10km), Le Havre (up to 10km)

Experience

  • Complices
    Malt logoOn Malt
    Corrections and technical modifications of a WordPress site
    E-COMMERCE
    April 2026 - May 2026 (1 month)
    Rouen, France
    Complete redesign of an e-commerce site and addition of custom features.

    Development of a custom WordPress site with WooCommerce integration and faithful reproduction of the Adobe XD mockups provided by the design studio.

    Achievements
    - Development of the custom WordPress theme
    - WooCommerce integration
    - Responsive integration faithful to XD mockups
    - Optimization of performance and user experience
    - Stabilization and reliability of the e-commerce journey
    - Development of specific features

    Approach
    Complete autonomous intervention with regular exchanges on design and content to ensure faithful integration with the brand identity while respecting technical constraints and project deadlines.

    Result
    Launch of a stable, high-performance, and easily manageable e-commerce platform, offering a fluid and coherent shopping experience with the brand's premium universe.
    WordPress Site Creation Website Creation and Redesign Refactoring PHP
  • Freelance
    Senior Symfony Developer & Web Architect – Freelance Missions
    DIGITAL AND IT
    November 2015 - Today (10 years and 7 months)
    Rouen, France
    Freelancer since 2015, I intervene as aSymfony & Vue.js experton demanding web projects, in production or as support for internal teams.
    My role covers the entire application chain: scoping, architecture, back-end development, front-end, API, and business integration.

    Key Responsibilities:
    - Design of robust, scalable, and evolvable technical architectures (DDD, modularity, security)
    - Development ofoptimized REST APIs & business services
    - Integration of modern front-ends withVue.js or React.js
    - Technical audit, definition of best practices, and debt reduction
    - Support, mentoring, and skill enhancement for internal teams
    - Design and development ofREST APIs with Symfonyfor SaaS applications
    - Development for my own needs of applications inReact Native

    Value Provided:
    - Acceleration of development cycles
    - Improvement of application performance
    -Maintainable and structuredcode to facilitate evolution
    Symfony API Architecture Vue.js SaaS
  • Le Stum
    Development of a Middleware between an ERP and Shopify
    MEDICAL
    February 2025 - March 2025 (1 month)
    Larmor-Plage, France
    Custommiddleware developmentmission to enable communication between an internal ERP and the company's Shopify store.
    The objective:replace a time-consuming manual synchronizationwith an automated and reliable flow between the two systems.

    Achievements:
    • Design and development of the middleware with Symfony
    • Integration of the Shopify REST API for managing products, inventory, and orders
    • Implementation of webhooks for real-time synchronization of Shopify events
    • Handling of error cases and automatic retries to ensure data consistency

    Results:
    • Real-time inventory/order synchronization, without manual intervention
    • Elimination of data entry errors and discrepancies between the ERP and the store
    • Significant operational time savings for business teams
    Symfony REST API Middleware Business Process Automation Webhooks

Reviews

5.0

Out of 3 ratings

M

Manon

WebDesigneur & Chef de Projet - Complices

Reviewed on 5/28/2026

I collaborated with Baptiste on the complete redesign of the e-commerce site for Lucifèves d'Aubrac, an artisanal chocolate maker with a strong brand identity, requiring as much technical rigor as sensitivity to the brand's image. Technically, he delivered a solid WordPress site integrating WooCommerce with care: cart management, product filters, subscriptions, gift cards, everything works seamlessly. The integration of XD mockups was faithful and meticulous, with genuine respect for the provided artistic direction. In terms of project management, Baptiste proved to be autonomous and responsive. Deadlines were met, and feedback was integrated smoothly, which is invaluable on a project where content arrives progressively. I recommend him without hesitation for any WordPress e-commerce project requiring a meticulous and detail-oriented developer.
N

Nicolas

Equanone

Reviewed on 3/5/2025

Recommendations

Mehdi F.MF
KV
ST
+2
Mehdi F. and 4 other people have recommended Baptiste

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor in Web Project Management - Development Specialization
    SUP'Internet / Epitech Digital
    2017
    Développement web Conception de projets BDD Développement mobile

Skill set

Categories