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

Jonathan Dewaele

Fullstack Developer | Web, Mobile & Backend

€500/day
1 project
Saint-Louis, RE
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Jonathan

🚀 Transform your ideas into high-performing and scalable applications!

Self-taught fullstack developer for over 15 years, I now exclusively focus on designing and developing custom web and mobile applications. My goal: to deliver robust, secure, and scalable solutions.

My stack:

1️⃣ AdonisJS 6 Backend: Solid architecture respecting proven design patterns (Contracts, Adapters, Thin Controllers, Fat Services). Maintainable, testable, and scalable code.

2️⃣ React / Vite Frontend: Comprehensive dashboards and modern, fast, and responsive web applications. Polished user interfaces and a smooth experience.

3️⃣ Flutter Mobile: Native iOS and Android applications from a single codebase. Performance and consistency across all devices.

4️⃣ Infrastructure & DevOps: Containerized environments with Docker, PostgreSQL database, Redis cache. Production-ready applications from day one.

My approach:

👉 Code Quality: Regular codebase audits, continuous refactoring, and strict adherence to best practices
👉 Security: Authentication, authorization, data validation, and protection against common vulnerabilities
👉 Increased Productivity: Advanced use of Claude Code for accelerated development without compromising quality
👉 Comprehensive Interconnections: RESTful APIs, real-time synchronization, third-party integrations, webhooks

I specialize in:

👉 Creation of complete web and mobile apps (MVP or finished product)
👉 Development of custom dashboards and back-offices
👉 Design of robust APIs and complete documentation
👉 Integration of payment solutions

Mastered Technologies:

👉 AdonisJS 6 / Node.js / TypeScript
👉 React / Vite / TailwindCSS
👉 Flutter / Dart
👉 PostgreSQL / Redis
👉 Docker / GIT

📱 Mobile App | 💻 Web App | ⚡ PWA | 🔧 Solid and Scalable Backend
Whatever your need, contact me!
  • English

    Conversational

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Sapiens
    Creation of an online store
    E-COMMERCE
    August 2020 - December 2020 (5 months)
    Paris, France
    Sapiens is today, in my personal opinion, one of the most beautiful achievements I have had. I was able to support the Sapiens team in the development of their Shopify store, which was customized down to the smallest detail.

    The theme used is the "flux" theme from outofthesandbox, many HTML and CSS modifications were made, each collection and product page is unique and has a specific template.

    The Sapiens team provided me with a very complete wireframe of 25 pages which allowed me to follow a complete plan for the development of the online store.

    The development was quite long and tedious compared to what I am usually asked for, but it was a great experience.

    Creation of the Shopify store, installation, theme configuration, and specific page development.

    Addition of beard / shaving / kit collections and development of templates for each collection.

    Creation of a specific template for products and product kits.

    Development using Liquid (Shopify programming language) for various blog systems:
    - Displaying a specific tutorial tag to indicate its category
    - Creation of a dynamic filter using jQuery to display only the selected tutorial categories
    Shopify Liquid JavaScript jQuery HTML5 CSS3
  • Soflashy
    Creation of an online store + Development of a private sales system
    E-COMMERCE
    February 2020 - February 2020 (1 month)
    Le Port, France
    Soflachy (formerly vente-flash.re) is a private sales site on Shopify. Initially built by the co-founder, the site was complicated to manage as everything was done manually.

    The Soflashy project was a highly advanced request for Shopify development: create a complete private sales system that would manage all sale openings and closings automatically.

    No application or similar system exists on Shopify, so it had to be conceived and developed from scratch.

    First, I implemented the Turbo theme and created a design that perfectly matched the client's expectations, following the main reference site (veepee). The theme was extensively customized.

    Once the design was well in place, I focused on developing the private sales system.

    1. Backend.

    - Shopify allows injecting additional data (metafields) into collections, products, pages, etc. I installed an app that allows me to add metafields.

    - Collections are considered private sales, and we inject metafields.

    - Creation of metafields in collections: start date, end date, etc. We added other types of metafields that enable additional features (reservations with deposits, etc.).

    2. Frontend

    Now that the metafields are installed, I created new Shopify sections that display the collection list based on what we want to show: either current sales, upcoming sales, or both.

    I block access to sales that are not open to everyone except administrators.

    Once this is done, the overall system is ready. Each sale is in its place, ongoing sales disappear, and products become inaccessible when they are finished. Upcoming sales automatically move to ongoing sales, and product access is unlocked as soon as the opening date begins.

    I also managed the installation of the Caisse d'Epargne payment module (Systempay) for online payments.
    Shopify Liquid jQuery JavaScript CSS3 HTML5
  • Hifisélection
    Senior E-commerce Shopify / Creation and Management of an online store
    E-COMMERCE
    September 2019 - Today (6 years and 9 months)
    La Réunion, France
    + Creation of an online store on Shopify
    + Implementation and configuration of the Turbo theme
    -- UX optimization of the theme
    + Addition of categories and products
    + Configuration of payment methods
    -- 3/4 installments payment by credit card with Shopify
    + Configuration of delivery parameters
    + SEO audit and optimization
    + Website and content management
    Shopify E-commerce SEO Gestion de projet Audit SEO Adobe Photoshop Retouche photo

Recommendations

FU
FU
FU
Former user and 2 other people have recommended Jonathan

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

Skill set

Categories