About Johan
French
Native or bilingual
English
Conversational
Experience
- RootagePresident & Co-FounderCONSULTING AND AUDITSNovember 2025 - Today (7 months)Paris, FrancePresident 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.
- JaiioFull-Stack Developer and AutomationE-COMMERCEAugust 2023 - Today (2 years and 10 months)Paris, FranceVersatile 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.
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Education
- Complete Training Python Driving License B Introduction to Cybersecurity Introduction to IoT Create Desktop Applications with PythonFormation Complète Python Permis B Introduction to Cybersecurity Introduction to IoT Créez des applications de bureau avec Python
- Software Application Solutions Development Officer, Web EngineeringESGI2026Chargé de Développement de Solutions Applicatives ou Logicielles, Ingénierie du Web