Design, develop and maintain backend‑driven web and API solutions using .NET Core, C#, ASP.NET (Web API / MVC).
Maintain and modernize existing legacy applications (WPF / WinForms) and contribute to migration strategies towards more modern architectures.
Translate functional needs into technical solutions and work independently on complex challenges.
Build and consume REST APIs and ensure secure integration between systems.
Contribute to frontend development using React and/or Blazor, in collaboration with designers and other developers.
Ensure code quality through testing, reviews and documentation.
Act as a senior reference point in the team and mentor less experienced developers.
Think along about technical direction, architecture and future evolutions.
7–10 years of experience as a developer in a .NET environment.
Strong experience with .NET Core, C#, ASP.NET, Entity Framework.
Experience with React and/or Blazor.
Familiarity with legacy Microsoft technologies (WPF / WinForms) or a strong willingness to learn and work with them.
Experience with REST APIs and application security concepts.
Experience with CI/CD and Git; knowledge of containerization (Docker, OpenShift, Kubernetes) is a plus.
Interest in cloud technologies (Azure is a plus).
Strong problem‑solving skills, autonomous working style and sense of ownership.
Ability to reflect on complex problems and know when to seek alignment.
Fluent in English; Dutch is a plus.
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.
Skills Required
- Advanced experience with .NET Core, C#, ASP.NET, Entity Framework, LINQ
- Strong experience with React and Blazor; familiarity with Angular, Vue is a plus
- Experience with API design and consumption, OAuth2.0, JWT
- Experience with CI/CD pipelines, Azure DevOps, GitHub Actions
- Experience with Docker and containerization technologies
- Familiarity with legacy Microsoft frameworks (WPF, WinForms)
- Ability to write and maintain tests (unit, integration, and front end)
What We Do
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 level, a growing population, the reduction of emissions, polluted rivers and soils and the scarcity of mineral resources. DEME can rely on more than 5,300 highly skilled professionals and operates one of the largest and most technologically advanced fleets in the world. DEME realised a turnover of 3,285 million euro with an EBITDA of 596 million euro in 2023
