Azure Backend Developer | .NET | C#

• Working location: 2d/ week from our Antwerp office (Berchem)

• Contract type: ZZP freelance contract

• Start date: 01/01/2026

• End date: 31/12/2026

Description of the assignment:

• You develop software in .NET (C#)

• We are seeking a skilled Backend Developer with expertise in .NET Azure development for our backend of our Broker Portal applications.

• The ideal candidate will have a solid understanding of CI/CD practices across multiple environments, experience with Azure Key Vault, Redis Cache, and Cosmos DB, and proficiency in integrating with external systems via SOAP services.

• Familiarity with OAuth, mocking for testing, and test-driven development is essential.

• Our codebase is managed in a private Git repository, and you will work closely with an agile team to enhance our backend services.

Tasks

• Develop and maintain serverless applications using Azure Functions and Azure Container Apps.

• Implement CI/CD pipelines to automate deployments across various environments With Infrastructure as Code ( Terraform).

• Manage sensitive information using Azure Key Vault.

• Optimize data storage and retrieval processes with Cosmos DB and Redis Cache.

• Integrate with external systems through SOAP services and manage authentication using OAuth.

• Write unit tests and employ test-driven development practices to ensure code quality.

• Collaborate with cross-functional teams in an agile environment to deliver high-quality software solutions.

• You understand the technical architecture and re-use existing technical components

• You make technical analyzes of the functional assignments you receive 

• ​You document the software you have developed 

• ​You offer third-line support 

• ​You support the analysts / designers in converting functional specifications into technical solutions 

Profile

• Medior plus with +/-5 - 7 years of experience in services design

• 5 – 7 years’ experience in IT Integration

• Plan-based, independent and result-oriented

• Analytically strong, accurate and problem-solving

• Communicative and a real team player.

• Customer & Broker focus is very important to you

• A hands-on mentality

• Very good knowledge of English and Dutch

Experience

• You have a broad IT knowledge and interest and terms such as SOA, Web services, unit testing, inheritance, Stored Procedure are not unknown to you

• ​You have development experience in Microsoft .NET technology (Azure , C#)

• ​You have experience building SOAP and REST Services in a Microsoft .NET environment

• ​You understand the underlying technologies such as XML / XSD / WSDL / SOAP and JSON / REST

• Experience with containerization (Docker, Kubernetes) in an Azure development environment is essential.

• ​Hosting web services and web applications in Azure Functions

• ​Analysis, design, coding and implementation of customized object-oriented applications

• ​Approach design of a relational database model with CosmosDb, Blob/TableStorage

• ​Task management with Azure DevOps

• ​Source control through Azure DevOps

• Azure Certification ( AZ-204 – Azure Developer )

• ​You are assertive and communicative, a team player

• ​You have strong analytical skills

• ​You are creative and think solution-oriented.

• ​You have an eye for quality and you take the initiative to optimize development processes.

• ​You are a team player.

• ​You are multilingual (Dutch, English)

• Experience in the insurance/financial/banking sector (highly recommended)