Deme
As an Intern Full Stack Developer (Estimation Website), you will build a web application that allows teams to estimate integration requests based on complexity, dependencies, and required effort. The tool should provide a clear workflow: create request → select parameters → automatic calculation → overview of all active requests. It will also incorporate a feedback loop to check how accurate assessments are.
Your responsibilitiesDesign and develop a modern full‑stack web application
Build REST APIs in .NET for storing and retrieving estimations
Implement the SQL database and data access layer
Develop the UI in React with reusable components
Deploy the solution to RedHat OpenShift
Write unit and integration tests
Document the solution and present it to stakeholders
Full‑stack interest - You enjoy working across the stack and want to build a complete application end‑to‑end.
Basic .NET skills - You can work with C#/.NET or are eager to learn it to build REST APIs
SQL understanding - You know how to design simple data models and write queries
React fundamentals - You have experience with JavaScript/TypeScript and want to build clean, reusable UI components
Structured problem‑solving - You can translate complex input into a clear workflow and logic
Attention to quality - You care about writing reliable code and tests
Language skills - You communicate fluently in Dutch and English
A people-oriented work environment with a strong focus on the well-being of our employees
A permanent training offer that enables personal and professional development
Our office is located in Zwijndrecht and also accessible by Waterbus or shuttle
DEME is a world leader in the highly specialized fields of offshore energy, dredging, marine infrastructure, and environmental works. We also engage in concessions activities in offshore energy, maritime infrastructure, green hydrogen and deep sea mineral harvesting. With 150 years of experience and nearly 6,000 highly skilled professionals, we have built up a vast bank of knowledge and expertise which has allowed us to foster a pioneering approach throughout our history. This enables us to bring tailor-made solutions, innovation and new technologies to our customers’ projects, ensuring that they are performed safely, efficiently and cost-effectively.
Number of employees: 6,000+ highly skilled professionals worldwide.
Sectors: Dredging & Maritime Infrastructure, Offshore Energy (Wind/Oil & Gas), Environmental Remediation, and Infra (marine and civil).
Preferred educational level: MBO (Vocational) for crew/technical staff; HBO/WO (Bachelor/Master) for engineering, project management, and office roles.
Preferred education: Civil Engineering, Electromechanical Engineering, Dredging & Offshore Engineering, Maritime Science (Marof), or Environmental Science.
Career level: All levels, with dedicated programs for Students/Interns, Graduates (via "Career Days"), and Senior Professionals (Engineers, Managers, and Senior Officers).