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[Freelance Lead .NET Engineer]

location_onLeuven
labelFreelancer
access_timeFulltime
location_onLeuven
labelFreelancer
access_timeFulltime

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.

What you will do

  • Take technical ownership of the .NET backend platform: architecture, system design, performance, scalability and reliability
  • Stay hands-on in the code, building complex features and solving hard technical problems
  • Drive technical decisions and set engineering best practices and standards
  • Coach backend engineers through technical guidance, code reviews and knowledge sharing
  • Work with Product, Customer Success and engineers to design, build, test and deploy solutions
  • Build integrations with external systems: authentication, authorization, APIs and content distribution

Who we are looking for

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Experience

A senior/lead backend engineer with 5+ years of experience and deep .NET/C# expertise, who has already taken technical ownership of backend systems and driven architectural decisions. You bring experience with large, complex, high-availability systems, relational databases, cloud platforms, IaC, CI/CD and DevOps practices, design patterns, secure coding (OWASP) and automated testing, plus a track record in mentoring. Master's in computer science or equivalent through experience.

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Languages

Fluent in Dutch, comfortable in English.

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Hybrid work

This is a hybrid assignment, split between the office in Leuven and remote work, to be agreed with the client.

What our freelancers say…

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.

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Our expertise

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

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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.”

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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!