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