SYSTEM EXPERT – FULL STACK .NET DEVELOPER

Purpose of the function

The role is responsible for developing, implementing, and maintaining software applications within a .NET environment in order to guarantee a stable, high-performance, and secure IT environment, thus optimally supporting business processes and user experience.

Areas of Responsibility

• Contributing to the renewal of hardware and/or software components and carrying out the necessary functional or technical analyses with the goal of meeting the needs of end-users and the company.
• Managing and monitoring technical requirements within a
  .NET and microservices architecture
• Advising on technology choices (.NET, React, tooling, frameworks)
• Designing solutions with a focus on
  frontend (React) and backend integration
• Developing or determining the technical requirements for, as well as implementing, new hardware or software and applications with the aim of providing a high-quality set of equipment and applications.
• Developing
  full stack applications (.NET + React)
• Working according to
  Agile methodology using Azure DevOps
• Implementing
  APIs and microservices
• Using
  Git for version control
• Monitoring, maintaining, testing, and securing the IT infrastructure and/or software applications with the aim of ensuring a high degree of reliability, security, and user-friendliness for end-users.
• Performing
  unit and integration testing
• Applying
  application & API security best practices
• Safeguarding performance and stability
• Maintaining data structures and/or system settings, providing a high-performance environment for data management and ensuring backups of user files with the aim of ensuring the correctness of business data and being able to quickly restore them in case of loss or damage.
• Working with
  SQL Server for data management
• Monitoring data quality and performance
• Supporting data integration within microservices
• Analyzing, solving, and following up on application or network-related problems with the aim of restoring the operation of these applications or networks.
• Debugging frontend and backend issues
• Providing second-line support
• Proactively preventing production issues
• Formulating proposals for the renewal and optimization of the activity domain with the aim of meeting current and future (business) needs.
• Formulating improvements in
  architecture and development practices
• Keeping up with evolutions within the .NET and React ecosystem
• Ensuring knowledge and keeping data and documentation up to date for one's own area of expertise as well as communicating the information with the aim of maintaining a correct and complete picture of all available components and applications throughout the entire lifecycle.
• Documenting code, APIs, and architecture
• Sharing knowledge within the team
• Working according to structured documentation standards

Profile

• Medior profile (±2–3 years of experience)
• Bachelor or equivalent through experience
• Strong in: maturity, drive, and team fit

Please note: There is a collective closure from 14/07/2026 until 02/08/2026
Given the course of the selection procedure and the request for a security clearance/advice, the candidate will only be able to start in August.