Freelancer profile translated to English.

Description

Are you looking for a freelance full-stack .NET, Blazor, and React developer capable of creating robust, custom business applications perfectly suited to your industrial needs and Industry 4.0 challenges?

With 17 years of experience, I design high-performance digital solutions, combining .NET / C# backend with modern frontend in React or Blazor, to effectively digitize and manage your operations.

✅ Development of customized business applications

✅ API integration and real-time connections (OPC UA, PLCs, REST API)

✅ Intuitive user interfaces and responsive dashboards

✅ Production monitoring, traceability, quality control, real-time indicators

A specialist in Industry 4.0, I connect your machines, MES/SCADA systems, and ERPs to transform your shop floor data into performance drivers.

Concrete example:

For a food processing SME:

Full-stack application connected to the machine park via OPC UA

Real-time tracking and visualization of batches

Custom KPIs and alerts

=> Result: +30% productivity in 4 months

I offer a video audit (15–30 minutes) to discuss your project and share my expertise in industrial full-stack development.

I speak "ERP, MES, SCADA, and API" fluently.

Available for a quick chat to build the solution that fits you, together.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
Spanish
Conversational

Workplace preferences

Can work on-site

Barcelone (up to 30km), Sant Pere de Ribes (up to 30km)

Freelance
Developer
E-COMMERCE
January 2025 - Today (1 year and 7 months)
Barcelone, Spain
Assessed and corrected university student practical work (Université Laval, Quebec) on Java projects and SOLID principles application.
Designed and developed DiveHub (divehub.info), a full-stack SaaS platform for divers, with complete ownership from database to deployment, fully autonomously. Backend architecture using Vertical Slice with CQRS/MediatR pattern (.NET, PostgreSQL via Neon, EF Core) for clean feature isolation and independent scalability.
Deployed on Azure Container Apps with CI/CD GitHub Actions, Auth0 authentication, Stripe integration (subscriptions), and Brevo (transactional emails).
Next.js frontend (App Router, TanStack Query) with freemium management, media uploads, and bilingual FR/EN support.
Developed a custom shipping cost calculation module for Shopify (Node.js).
Node.js React.js Website .NET JavaScript
Norda Stelo
Developer
SOFTWARE PUBLISHING
March 2023 - Today (3 years and 5 months)
Saguenay, Canada
Refactored a WinForms desktop application (.NET 4.8) into a modern web application (.NET 10 backend + Blazor, frontend), improving user accessibility.
Designed and developed clean, scalable architectures (REST API, EF Core, CQRS) for critical business applications.
Developed a CQRS application connected to an OPC UA server for automated metal melting recipe management: controlling exchanges with the PLC, recipe creation and versioning, validation, and traceability.
Created Python scripts under Ignition 8.3 for monitoring and automating industrial processes.
Designed an automated production reporting system (PDF / Excel) entirely developed in .NET, with email distribution.
Implemented a Kafka POC for real-time processing and distribution of industrial data, demonstrating the integration of event-driven messaging in a production context.
Integrated Microsoft Entra ID authentication to secure application access.
.NET Python React.js C# Blazor
DevSecOps, CONFORMiT
Technical Advisor
SOFTWARE PUBLISHING
November 2021 - March 2023 (1 year and 4 months)
Saguenay, Canada
• Organized software migration using Jira
• Automation with PowerShell, Python, and SQL
• Monitored AWS EC2 instances
• Secured cloud and physical networks
• IT Support, ISO 27001 audit, firewall (Fortigate), Microsoft Endpoint Manager
AWS EC2 Python Cybersecurity SQL Fortigate