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.
Design 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 (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 5,800 highly skilled professionals and operates one of the largest and most technologically advanced fleets in the world. DEME realized a turnover of 4.1 billion euro with an EBITDA of 764 million euro in 2024.
