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DEME Group

Full Stack Senior .NET Developer

On site

Zwijndrecht, Belgium

Senior

Full Time

09-02-2026

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Skills

Communication Leadership JavaScript C# GitHub CI/CD DevOps Docker Kubernetes Version Control Azure DevOps Selenium Problem-solving Effective Communication Redhat git angular Asp.Net Azure react cloud platforms .NET .NET Core CI/CD Pipelines OpenShift GitHub Actions

Job Specifications

We are seeking an experienced Senior Full Stack Developer with advanced expertise in .NET technologies, React, and Blazor to join our team. In this role, you will design, develop, and maintain both modern and existing applications, collaborating with cross-functional teams to deliver robust solutions. Your primary focus will be on web and API development using .NET Core, React, and Blazor. Experience with legacy Microsoft frameworks (such as WPF or WinForms) is considered a strong plus.

Your responsibilities

Design, develop, and maintain full stack solutions using .NET Core, C#, ASP.NET (MVC/Web API), React, and Blazor.
Contribute to the modernization and integration of legacy applications, supporting migration efforts as needed.
Architect and implement scalable, maintainable, and secure solutions across the stack.
Collaborate with UI/UX designers to deliver intuitive and responsive user interfaces using React and Blazor.
Build and consume RESTful APIs, ensuring robust integration between frontend and backend systems.
Mentor and support junior developers, conducting code reviews and sharing best practices.
Troubleshoot and resolve complex technical issues across both legacy and modern systems.
Ensure high standards of code quality, testing, and documentation.
Stay current with advancements in .NET, React, Blazor, cloud, and Microsoft technologies, providing guidance on technology choices and migration strategies.

Your profile

.NET Development: Advanced experience with .NET Core, C#, ASP.NET (MVC/Web API), Entity Framework, LINQ.
Frontend Development: Strong experience with React and Blazor; familiarity with other modern JavaScript frameworks (Angular, Vue) is a plus.
Integration: REST/SOAP API design and consumption, OAuth2.0, JWT, and API security protocols.
DevOps & Automation: Strong experience with CI/CD pipelines (Azure DevOps, GitHub Actions, etc.), including writing and maintaining YAML configurations. Version control (Git) and automated testing are required.
Containerization: Experience with Docker, RedHat OpenShift and/or Kubernetes is a plus.
Cloud: Experience with Azure or other cloud platforms is beneficial.
Legacy Technologies: Familiarity with WPF, WinForms, or other legacy Microsoft frameworks is a plus.
Automated testing: Capability to write and maintain tests, both unit, integration and front end (selenium)
Other Skills: Strong problem-solving abilities, effective communication, leadership, and mentoring skills.

Our offer

A comprehensive mobility program that supports work-life balance.
Continuous learning and professional development opportunities.
A dynamic, innovative environment with real opportunities for growth.
A people-centric culture with a strong focus on wellbeing and health initiatives.

About the Company

DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging & infra, environmental remediation, trenching and marine infrastructure. DEME also engages in concessions activities in offshore wind, marine infrastructure, green hydrogen, and deep-sea mineral harvesting. The company can build on almost 150 years of experience and is a front runner in innovation and new technologies. DEME’s vision is to work towards a sustainable future by offering solutions for global challenges: a rising sea... Know more