You will work on business‑critical applications, combining maintenance and modernization of existing systems with the development of new solutions. The role is backend‑leaning, but you are comfortable working across the full stack—from .NET APIs to React frontends and deployment pipelines.
You enjoy solving complex problems, working independently, and taking ownership. You think beyond implementation: how systems evolve, scale, and deliver long‑term value.
At DEME, we are actively adopting AI‑augmented engineering practices. You will help shape this transition by integrating tools such as GitHub Copilot, Claude, Kimi or similar agents into daily workflows—using them to accelerate development, improve quality, and rethink how software is delivered.Your responsibilities
Build, maintain and modernize .NET applications and React frontends, with a strong focus on backend engineering.
Work in an AI‑augmented workflow: use coding assistants and agentic tools to design, implement, test and document features faster and more reliably.
Structure tasks, prompts and codebases so agents can generate, refactor and validate components with minimal friction.
Review and improve AI‑generated output to ensure architectural coherence, security and long‑term maintainability.
Identify and implement agentic automation opportunities (scaffolding, test generation, API integration, data transformation, legacy modernization).
Translate business requirements into scalable solutions and take ownership from analysis through deployment.
Contribute to DEME’s evolving engineering practices, share knowledge, and help shape how AI‑augmented development becomes standard across teams.
Ensure quality through testing, CI/CD, code reviews and modern engineering discipline.
Experienced full‑stack .NET engineer with strong skills in C#, ASP.NET, REST APIs and React.
Comfortable working in an AI‑assisted and agentic development environment from day one.
Able to structure tasks and codebases for reliable agentic generation, and skilled at critically reviewing AI output.
Understands when automation accelerates delivery — and when manual engineering is required.
Familiar with Git, CI/CD and modern cloud‑native practices (Azure, Docker, Kubernetes, OpenShift are a plus).
Strong analytical mindset, ownership mentality and interest in architecture and technical direction.
Fluent in English; Dutch is a plus.
An extensive mobility program for a healthy work-life balance.
A permanent training track which allows you to develop yourself personally and professionally.
A stimulating, innovative workplace with growth opportunities.
A people-oriented environment with an interactive health program and a focus on employee wellbeing.
Skills Required
- Minimum 5 years of experience in software development within a .NET environment
- Strong knowledge of C#, .NET or .NET Core, and ASP.NET
- Experience building and consuming REST APIs
- Experience with React and/or Blazor
- Familiarity with WPF or WinForms, or willingness to work with and modernize legacy applications
- Experience with Git and CI/CD practices
- Strong analytical and problem-solving skills
- Ability to work independently and take ownership of technical challenges
- Interest in architecture, technical direction, and continuous improvement
- Fluent in English
- Knowledge of Azure, Docker, OpenShift, Kubernetes, or cloud-native development
- Interest in modern software development practices and emerging technologies
- Knowledge of Dutch
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
