You will work on a large-scale digital transformation program within the Belgian public sector, aimed at delivering digital-by-default services for complex, mission-critical case management processes.

The program consists of multiple interconnected modules that support end-to-end workflows, including case intake from internal and external partners, status tracking, decision and document generation, and structured data exchange with other platforms. All components operate within a broader enterprise landscape and must integrate seamlessly with existing and future systems. As a Senior Backend Software Engineer, you take ownership of backend development for high-impact applications. You design, build, and maintain robust backend services, contribute to system architecture, and translate functional requirements into reliable technical solutions.

What you will do

• You develop high-quality backend code using .NET and C# for business-critical applications.
• You design and evolve backend architectures within a cloud-based environment.
• You translate functional requirements into concrete technical designs and implementation plans.
• You analyze, troubleshoot, and resolve application errors and improve existing components.
• You integrate backend services with other modules and external platforms.
• You write and maintain automated tests and ensure overall code quality and stability.
• You perform code reviews and actively coach or mentor other developers.
• You document technical solutions, architectural decisions, and delivered functionality in a structured way.
• You contribute to continuous improvement of development practices within an Agile setup.