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Sylvain JoffraudSJ

Sylvain Joffraud

Node | React | PHP Symfony Developer

€555/day
Nantes, FR
15+ years

Average response time: A few days

Freelancer profile translated to English.
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About Sylvain

Looking for a React, Node, or PHP Symfony developer?
You've come to the right place.

I am a software engineer with over 15 years of experience.
I specialize in React (and Gatsby.js), Node, and PHP, Symfony.

I have worked in various sectors such as payments, e-commerce, B2B booking...
I have collaborated with companies such as Akeneo, The Fork, Hipay...

I am able to:
- Stabilize legacy projects
- Set up relational databases SQL, PostgreSQL, MySQL
- Set up CI/CD (Continuous Integration, Continuous Deployment)
- Set up software architecture like DDD, BDD, hexagonal
- Write technical documentation
- Participate in writing detailed technical specifications
- Analyze the impact of product design on the IS technical architecture
- Redesign, migrate, and develop a front-end in React.js
- Develop the back-end in PHP, NodeJS
- Develop an API
- Train and upskill junior profiles
- Perform unit and integration tests to ensure code quality
- Participate in refactoring, continuous improvement, and code review contribution
- Design, develop, and maintain features in line with business needs

I also have knowledge of: Github CI, Gitlab CI, CircleCI, RabbitMq, Graphql, Docker, Kubernetes..

I also place great importance on transparency with my clients.
I send a daily report to my clients at the end of the day on all the tasks I have performed.

Do you have a project?
Contact me, I respond very quickly.

---
frontend developer
backend developer
fullstack developer
react developer
react.js developer
react js developer
reactjs developer
react node developer
react typescript developer
senior react developer
node.js developer
node js developer
senior node js developer
senior node developer
php symfony developer
  • French

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Nantes (up to 50km), Paris (up to 50km), Lille (up to 50km), Bordeaux (up to 50km)

Experience

  • Akeneo
    Fullstack Developer
    SOFTWARE PUBLISHING
    April 2025 - July 2025 (3 months)
    Nantes, France
    Akeneo is a company in the Product Information Management (PIM) solutions sector, aiming to help businesses efficiently and consistently centralize, enrich, and distribute their product data across all sales channels.
    The company had several hundred clients worldwide, including international brands and distributors, and employed approximately 300 people at the end of 2024.

    I joined the "Complex Projects" team, part of a group consisting of 2 developers, 1 Designer, 1 Engineering Manager, and 1 Product Manager.

    As a Fullstack developer, I performed the following tasks:
    ◦ Strategic redesign of the data model to position Akeneo against the competition.
    ◦ I contributed to the transformation of Akeneo's data model, moving from a flat structure to a hierarchical model allowing for product attribute inheritance — a key feature to attract large enterprises accustomed to Master Data Management (MDM) solutions. This evolution directly addressed a critical issue during commercial negotiations: offering flexibility and scalability comparable to market leaders, while retaining the agility and user-friendliness that are Akeneo's strengths. Result: a major differentiating argument for winning over demanding clients historically acquired by competitors.

    Technical Context: TypeScript, React, Symfony, Backbone, Github, Circle CI, Docker, PhpStorm., PhpUnit
    PHPUnit React.js NodeJS Typescript PhpStorm
  • The fork
    Fullstack Developer
    E-COMMERCE
    April 2021 - August 2024 (3 years and 5 months)
    Nantes, France
    The Fork is a company in the online restaurant reservation sector, aiming to facilitate the connection between restaurants and their customers through an intuitive and efficient digital platform, while offering an urban and community-based gastronomic guide.
    The company has over 420 million customers, 60,000 partner restaurants in Europe, and a team of over 1,000 employees (called "Forkies").

    I joined the Supply team to participate in adding new features and decommissioning legacy projects.
    The team consisted of 6 developers, 1 Product Manager (PM), and 1 Engineering Manager (EM).

    As a FullStack developer, I was responsible for:
    • Improving the development experience by defining common best practices and simplifying the code and tools for writing tests.
    • Reorganizing rights management by defining an exhaustive list of features, centralizing the display and access rights management. This allowed for redefining the packages offered to clients and activating certain parts for promotions.
    • Participating in the integration of features from old Symfony projects into new NodeJS projects to allow for the decommissioning of projects that could no longer be maintained.
    • Breaking down requirements into clear and actionable US, User Story definition workshop with the PO.
    • Writing detailed technical architecture documentation (ADR) of the technical solution.
    • Code review and continuous integration.
    • Production deployment.
    • Performing tests.

    Here is the link to the project I worked on:
    https://manager.thefork.com/

    Technical Context: TypeScript, React, Aws, Docker, PostgresSQL, Hapi, Joy, Github Actions, Cypress, Sentry, RabbitMq, Kubernetes, Grafana, Kibana, Datadog, Symfony
    Typescript PHP PostgreSQL Symfony React.js
  • 25e heure
    Fullstack Developer
    E-COMMERCE
    April 2021 - December 2023 (2 years and 8 months)
    Montréal, Canada
    ◦ As a founding member and treasurer, I contributed to the creation and management of this communication cooperative. I participated in implementing innovative technological solutions to optimize internal processes and improve client communication.
    ◦ Training service providers for project execution.
    ◦ Project management, daily and weekly meetings.
    GatsbyJS React.js FaunaDB Stripe

Recommendations

Kom InspirKI
Kyllian VinklerKV
Lilian AlvarezLA
Kom Inspir and 2 other people have recommended Sylvain

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Education

  • Baccalaureate
    High School
    2005
  • Computer Science Degree
    University of Nantes
    2009

Certifications

  • PHP 5.7
    Zend
    2017

Skill set

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