Medior .NET Developer

In4Matic; Brussel Hoofdstad; Hybride; EUR 55 000 - 75 000; Plein temps

Résumé du poste

In4Matic is seeking a Medior .NET Developer to support a migration initiative that underpins business processes. You will develop and integrate components using .NET technologies and collaborate with the architecture group to document and implement customisations.

The role focuses on modernising the solution landscape and strengthening service continuity, with hands-on work in C#/.NET, REST APIs, and full-stack development.

Qualifications

• Experience with C# and .NET technologies, including .NET Core and .NET 10.
• Experience with ASP.NET Web API, REST APIs, and Swagger/OpenAPI.
• Knowledge of authentication and authorisation mechanisms such as JWT, OIDC, and claims-based security.
• Experience with Blazor, MVC, Entity Framework Core, SQL Server, and WCF.
• Experience with unit and integration testing.
• Solid background as a confirmed full-stack developer.

Responsabilités

• Develop and integrate components using .NET technologies.
• Document and implement solution customisations in close collaboration with the architecture group.
• Contribute to the technical evolution of the existing environment as part of the migration effort.

Connaissances

C#

.NET

.NET Core

ASP.NET Web API

REST APIs

Swagger/OpenAPI

JWT

OIDC

claims-based security

Blazor

MVC

Entity Framework Core

SQL Server

WCF

Unit testing

Integration testing

Full-stack development

Description du poste

Function

Our client is looking for a Medior .NET Developer to support a migration initiative involving several essential information tools that underpin business processes. The assignment focuses on modernising the solution landscape and strengthening service continuity through solid development and integration expertise.

Responsibilities

• Develop and integrate components using .NET technologies.
• Document and implement solution customisations in close collaboration with the architecture group.
• Contribute to the technical evolution of the existing environment as part of the migration effort.

Technical Skills

• Strong experience with C# and .NET, including .NET Core and .NET 10.
• Hands‑on experience with ASP.NET Web API, REST APIs, and Swagger/OpenAPI.
• Knowledge of authentication and authorisation mechanisms such as JWT, OIDC, and claims‑based security.
• Experience with Blazor, MVC, Entity Framework Core, SQL Server, and WCF.
• Experience with unit and integration testing.
• Solid background as a confirmed full‑stack developer.

Profile

• You are confirmed in Microsoft technologies, with a clear focus on .NET development.
• You work in a structured and analytical way, with the ability to assess information critically.
• You can recognise patterns, connect data logically, and distinguish key elements from supporting details.
• You are able to evaluate alternatives, build coherent conclusions, and support decision‑making with sound analysis.
• You work well in collaboration with technical stakeholders and architecture teams.

Practical Information

• Work arrangement: at least 2 days per week on‑site in Brussels, with telework allowed within Belgium.
• Languages: active Dutch and French, passive English.

Contactperson & Reference

• Reference #: INW27469
• Casper Moyaert
• [e-mail]