[Full stack .NET Developer]

Brussels

Consultant

Fulltime

Brussels

Consultant

Fulltime

You’re a .NET developer who cares about clean code, modern tech, and building software the right way. At Itenium, you’ll join a close-knit team where craftsmanship, continuous learning, and having fun go hand in hand. You’ll work as a consultant on projects at one of our clients, backed by experienced colleagues, coaching, and a culture that puts quality first.

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

Learn more about us

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 consultants say…

Itenium is a place where you can learn, grow, and have fun with colleagues every day. Professional and human — I think that’s a great combination

Jonathan Rasquin

Itenium

At Itenium, I got off to a strong start right away: directly on a project, with solid guidance, clear communication, and a team that’s truly engaged.

Pierre Bossé

Itenium

At itenium, we all share the same mindset. The atmosphere makes you feel welcome every day, whether that’s at the office, during trainings, or at after-work events. In this growing, people-first organization, there’s plenty of room for both personal and professional development

David Sverdlov

Itenium

What we offer

Attractive compensation

A competitive gross salary plus extensive benefits: a premium-brand company car, fuel card, comprehensive insurance package (hospitalization, outpatient, and dental), meal vouchers and eco vouchers, and more.

Impact

A challenging role where you directly make a difference for our clients.

Growth & development

Targeted training, knowledge-sharing among consultants, and personal coaching, all aligned to your career plan.

Work–life balance

32 days off per year (including 12 ADV reduction-of-working-hours days).

Fun!

Join a young and dynamic team. Think cozy drinks, lunches, and teambuilding—from skydiving to a family day at Efteling.

Ready to apply?

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

Jelle Muijzelaar

IT Talent Specialist

0470 95 76 39

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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!