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

Johan Ledoux

Full Stack Developer

On-demand
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Johan

President of Rootage and Developer, I transform your complex business problems into robust and scalable software architectures. My approach combines strategic vision and technical excellence: every line of code is designed to serve your growth objectives and guarantee a concrete ROI.

From modeling critical business rules to deploying autonomous infrastructures, I support the complete lifecycle of your products. At Rootage, we eliminate filler to focus on performance, reliability, and perfect alignment between your software vision and your operational imperatives.
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Rootage
    President & Co-Founder
    CONSULTING AND AUDITS
    November 2025 - Today (7 months)
    Paris, France
    President of Rootage and Developer, I combine business vision and technical excellence to drive your growth.
    We design modern, high-performance, and scalable software solutions, with one obsession: code serving your ROI. From architecture to deployment, I support you in creating expert tools, sourced and without technical debt. Let's transform your business processes into sustainable and innovative success drivers together.
    Typescript Python Amazon Web Services Node.js Artificial Intelligence
  • Jaiio
    Full-Stack Developer and Automation
    E-COMMERCE
    August 2023 - Today (2 years and 10 months)
    Paris, France
    Versatile technical expert, I work across the entire stack to transform complex business needs into scalable solutions, from hybrid infrastructure to advanced automation.

    ⚙️ Automation & Data Processing (Scale)
    • Python & AI: Development of internal tools based on learning models and AWS Lambda functions for heavy data processing (files, images).
    • Workflow Orchestration: Management of critical flows via Make (thousands of operations/day) and Airtable, ensuring smooth communication between the backend and business operations.
    • Monitoring: Implementation of centralized error management and system supervision via Zabbix.

    💻 Software Engineering & E-commerce
    • Fullstack: Development of APIs under NestJS and client interfaces in SvelteJS.
    • E-commerce: Shopify theme architecture (Liquid) and multi-marketplace integration (ShoppingFeed).
    • Technical SEO: Optimization of referencing and automation of product taxonomy.

    ☁️ Infrastructure & Cyber-security
    • Hybrid Architecture: Deployment and administration of an AWS / Proxmox infrastructure with backup automation (snapshots).
    • Network: Design of a secure network (VPN, Wi-Fi Mesh, filtering DNS) and management of dual fiber redundancy.

    📊 Data Intelligence & BI
    • Data Stack: ETL pipeline with Airbyte and dashboarding via Metabase (SQL) for real-time KPI monitoring.

    📦 Operational Efficiency
    • Logistics: Automation of the industrial printing process (Zebra/PrintNode) via a dedicated server.
    • IT Support: Maintenance of IT equipment (Mac/Win) and containerization of internal tools under Docker.
    NestJs Svelte Python Amazon Web Services Make

Recommendations

Be the first to recommend Johan

Help this freelancer shine by sharing your experience working together.

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

  • Complete Training Python Driving License B Introduction to Cybersecurity Introduction to IoT Create Desktop Applications with Python
    Formation Complète Python Permis B Introduction to Cybersecurity Introduction to IoT Créez des applications de bureau avec Python
  • Software Application Solutions Development Officer, Web Engineering
    ESGI
    2026
    Chargé de Développement de Solutions Applicatives ou Logicielles, Ingénierie du Web

Skill set

Categories