[Full Stack .NET Developer]

Antwerp/Brussels/Ghent

Freelancer

Fulltime

Looking for a challenging project as a freelance .NET Developer? Itenium connects you with projects that fit your expertise and preferences, so you can focus on delivering quality while we take care of the right opportunity.

Apply now

What you will do

Build and evolve backend services and APIs with .NET and ASP.NET Core
Develop modern, responsive UI features using TypeScript and a front-end framework (Angular/React/Vue)
Design clean, maintainable architectures using proven patterns and best practices
Work with data: SQL, Entity Framework, LINQ, performance and reliability
Deliver production-ready software via testing, code reviews, and CI/CD
Collaborate with agile client teams, translating business needs into working features end-to-end

Who we are looking for

Experience

At least 5 years with .NET Core / ASP.NET Web API, with a clean code mindset.

Fullstack Mindset

Front-end experience or a strong interest in modern frameworks such as Angular, React, or Vue, combined with TypeScript/JavaScript

Data & Async Skills

Strong in Entity Framework, LINQ, and async/await.

DevOps-Aware

Familiar with CI/CD, DevOps, Design Patterns, Dependency Injection.

Team & Ownership

Fluent in Dutch, comfortable in English, collaborative and quality-driven.

What our freelancers say…

In a business of faceless middlemen, this was truly an honest and hands-on approach. Itenium helped me launch my career to the next level, thanks guys!

Dan

Many thanks to the Itenium family for the great support and smooth collaboration. I truly hope we can work together again.

Johan

What I enjoy most in our collaboration is the open communication, the people focused attitude and knowing I can rely on Itenium whenever support is needed.

Domien

Ready to apply?

Excited about this role? We’d love to hear from you!

Jelle Muijzelaar

IT Talent Specialist

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About Itenium

Founded in 2018 by consultants, for consultants, Itenium is driven by the belief that things can always be better (nominated for Trends Gazellen 2025!). From our office in Mechelen, our 50+ consultants support companies across Belgium to build software solutions that truly work.

Our expertise

.NET, Java, JavaScript (Angular, React), Cloud (Azure, AWS, Kubernetes), DevOps, Product Ownership, Analysis, and Test Automation.

Our approach

Quality first—with real attention to our people. Our consultants are true experts, above-average senior IT profiles. We invest in personal growth through training and one-on-one coaching. Our motto says it all: “committed to pushing you forward.”

About us

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Apply spontaneously

We’re always on the lookout for talented and passionate individuals to join our team. Don’t see the perfect role listed? Send us your spontaneous application and discover what we can create together!