Developer-ZAS000148

Location: Belgium (Hybrid)
Start Date: 01 September 2026
Contract Duration: Until 31 December 2026 (extension possible)
Workload: Full-time

We are looking for an experienced Developer to join a software development team responsible for the analysis development testing documentation and support of enterprise applications and system integrations built on the Microsoft technology stack.

The successful candidate will have a strong background development be capable of working independently and collaborate effectively with architects analysts infrastructure teams application administrators and fellow developers to deliver scalable and maintainable software solutions.

• Design develop test debug and maintain applications.
• Develop and maintain RESTful APIs and application integrations.
• Write analyze and optimize complex SQL queries.
• Work with relational databases ensuring high performance and data integrity.
• Participate in application analysis technical documentation and production support.
• Coach and mentor developers while contributing to technical leadership within the team.
• Apply Agile development practices throughout the software development lifecycle.
• Collaborate with cross-functional technical teams to deliver high-quality solutions.
• Ensure code quality through testing debugging and best development practices.

• Minimum 7 years development experience.
• Minimum 5 years of experience -based applications.
• Strong expertise in:
  • C#
  • .NET /
  • RESTful API development
  • SQL query development and optimization
  • Relational databases
• Experience with software development testing debugging and troubleshooting.
• Experience leading or mentoring development teams.
• Strong knowledge of Agile software development methodologies.
• Dutch language proficiency at CEFR C2 level.

• Knowledge of authentication and authorization technologies such as:
  • OAuth 2.0
  • OpenID Connect
  • JWT
• Understanding of:
  • Data modelling
  • Indexes
  • Views
  • Stored Procedures
• Knowledge of software architecture principles and design patterns.
• Experience with modern component-based UI development.
• Understanding of API design principles HTTP methods status codes and JSON.
• Knowledge of Microsoft SQL Server.
• Familiarity with HTML5 CSS3 and JavaScript.
• Experience with CI/CD principles.
• Experience within the healthcare sector is an advantage.