Champs-sur-Marne, Île-de-France, France

I'm a Lead Developer and Technical Architect passionate about transforming complex technical challenges into real business value.
Over the past 15+ years, I’ve led engineering teams, modernized legacy systems, and delivered scalable solutions across FinTech, E-commerce, Media, and Public Sector projects.

I combine technical leadership, architectural expertise, and business understanding to help companies succeed in their digital transformations.

• 🚀 Proven ability to lead technical teams and drive measurable results
• 🏗️ Expertise in .NET Core, Node.js, and modern frontend frameworks
• ☁️ Hands-on experience with Azure, AWS, Docker, Kubernetes, and IaC (Pulumi)
• 🔄 Strong experience in system redesigns, migrations, and integrations (Salesforce, Business Central, legacy systems)
• 🤝 Bridge between technical and business stakeholders, supporting CTOs on governance and IT strategy

Frontend: Vue.js, React, Angular Backend: .NET Core, Node.js, Javascript, Typescript, Microservices Architecture
Cloud & DevOps: Azure, AWS, GCP Docker, Kubernetes,Mesos Marathon,Azure Devops, GitHub Actions, Pulumi, Ansible
Databases: SQL Server, Azure Cosmos DB, Oracle, Postgres, Redis, ElasticSearch
Other Skills: Service Fabric, CI/CD, Agile & Kanban

• Led a team of 3–4 developers and participated in IT steering committees
• Delivered successful Salesforce × Business Central integration, boosting operational efficiency
• Migrated platform to modern cloud infrastructure (Azure/AWS)
• Supported the CTO on governance, licensing, and shadow IT management

• Senior developer on the Completion/Contact team
• Automated document analysis and credit verification workflows
• Built scalable architecture with .NET Core, Angular, Azure Functions, and Service Bus

• Developed unified authentication microservices with SAML2, OpenID, OAuth2
• Led innovation lab projects using Docker, Kubernetes, and Service Fabric
• Created internal productivity tools with Node.js and Electron

• MCSD: Microsoft .NET
• MCTS: .NET Framework 2.0 & 3.5, Silverlight 4, WPF, Web Applications

• 🇫🇷 French (Native)
• 🇬🇧 English (Professional)
• 🇪🇸 Spanish (Elementary)

• Email: poumarat@gmail.com
• LinkedIn: linkedin.com/in/guillaumepoumarat

⭐ “Turning technical complexity into business advantage.”