Lead .Net Integration Developer
Brussels-Capital
Digital - Development
Bachelor, Master
Work experience: 10+
Reference number: 93167

Our client, a large public organization operating in a complex, integration-heavy IT landscape, is strengthening its integration capabilities within a cloud-first environment. The Senior Lead .NET Integration Developer combines hands-on development with technical leadership, contributing to the design and delivery of scalable Web APIs and Azure-based integration solutions.

responsibilities:
  • Design, develop, and maintain robust ASP.NET Web APIs within a cloud-based integration landscape.
  • Design and implement integrations using established integration patterns and cloud design principles.
  • Build and operate Azure-based solutions covering messaging, storage, security, and monitoring.
  • Contribute to a microservices architecture and participate in architectural decision-making.
  • Review code and enforce quality standards related to security, performance, testing, and observability.
  • Coordinate and guide developers by providing technical direction, task follow-up, and estimations.
  • Support CI/CD pipeline setup and continuous improvement in an Agile delivery context.

What are we looking for?

  • You have 10+ years of experience as a .NET developer, including a senior or lead role in integration-focused environments.
  • You bring strong backend development expertise with .NET 8 and ASP.NET Web APIs.
  • You possess hands-on experience with Azure services such as Service Bus, API Management, Azure Functions, Cosmos DB, Application Insights, and Key Vault.
  • You have solid experience designing and implementing microservices and cloud integration patterns.
  • You bring practical experience with CI/CD pipelines and quality-driven development practices.
  • You have experience integrating with enterprise platforms such as SAP SuccessFactors, Microsoft Dynamics, or comparable systems.
  • You are comfortable providing technical leadership, including estimations, risk analysis, and team guidance.
  • You hold a Bachelor’s or Master’s degree in IT or an equivalent technical discipline.
  • You are fluent in French and English.

Nice to Haves

  • Experience with frontend or desktop technologies such as Blazor or WPF.
  • Experience with Entity Framework Core.
  • Experience with document generation tools.

What do we offer?

  • Work regime: Full-time
  • Location: Brussels
  • Working model: Onsite or Hybrid
  • Contract: open to both permanent employees and freelancers

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