Freelance Solution Designer – .NET / C# / Azure Architecture
For one of our clients in the Brussels region, we are looking for an experienced Freelance Solution Designer with a strong technical background in .NET, C# and Azure .
Start: September 2026
End: August 2028
Location: Brussels area
Remote: 50% remote / 50% onsite
About the roleWe are looking for a hands-on Solution Designer who can translate business requirements into solid technical solutions.
You will analyze functional needs, understand existing applications and define the right technical approach. You will work closely with developers and technical teams to ensure solutions are scalable, maintainable and aligned with the overall architecture.
This role requires someone who combines software development knowledge, architecture skills and strong communication abilities .
Technical backgroundYou have a strong background in software engineering and solution design, with experience in:
- Azure Functions, Cosmos DB, Azure Service Bus and API Management
- REST APIs and application integrations
- Event-driven architectures and messaging solutions
- Distributed systems and enterprise applicationsSoftware architecture and technical solution design
- Database design and data flows
- Front-end technologies such as React or Blazor (plus)
- Mobile applications and synchronization concepts (plus)
A previous experience as a Software Developer, Technical Lead, Software Architect or Technical Analyst is highly appreciated.
Your responsibilities- Translate business requirements into technical designs.
- Define solution architecture and technical components.
- Analyze impact on existing systems and integrations.
- Make technical design decisions and document them clearly.
- Review technical solutions and propose improvements.Create architecture documentation, API specifications and technical flows.
- Collaborate with analysts, developers, testers, architects and business teams.
- Minimum 2 years of experience in a Solution Designer, Application Architect, Software Architect, Technical Lead or similar role.
- Experience with APIs, integrations, cloud platforms and distributed systems.
- Experience working with development teams in a software delivery environment.
- Strong analytical and problem-solving skills.
- Ability to work independently and take ownership of solutions.
- Fluent in Dutch or French (minimum C2 level).
- Available for at least 2 days onsite in Brussels .
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