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.NET Developer

Job in Brussels, Brussels Capital, Belgium
Listing for: Inetum
Full Time position
Listed on 2026-07-01
Job specializations:
  • Software Development
    Backend Developer, Software Engineer, .NET Developer, C# / Unity Developer
Job Description & How to Apply Below
Position: Inetum - .NET Developer
Inetum is a European leader in digital services. Every day, the Group's 28,000 consultants and specialists aim to make a digital impact for businesses, public sector bodies and society as a whole: solutions that contribute to performance, innovation and the common good.

Present in 19 countries, close to the regions, and with its major software publisher partners, Inetum meets the challenges of digital transformation with proximity and flexibility.

In response to a market that has been growing steadily for over 30 years, Inetum has made the deliberate choice to refocus on 4 core businesses in order to gain strength and offer customized solutions tailored to the specific needs of its customers: consulting (Inetum Consulting), infrastructure and application management (Inetum Technologies), software implementation (Inetum Solutions) and its own software publishing business (Inetum Software).

Inetum has forged strategic partnerships with 4 of the world's leading software publishers - Salesforce, Service Now, Microsoft and SAP - and is pursuing a dedicated acquisition strategy to become one of Europe's top 5 in these technologies, and offer the best expertise to its customers.

At Inetum Belgium, we offer more than just a job; we provide an inspiring environment and opportunities for growth and development. We strive to create a workplace where you can harness your talents, contribute to challenging projects, and be part of a leading IT consultancy group.

Job Description

We're looking for a talented and motivated .NET Developer to join our growing development team in Belgium. In this role, you'll have the opportunity to design, develop, and maintain robust backend applications using the .NET framework. You'll work collaboratively with cross-functional teams to deliver innovative solutions that drive customer success and organizational growth. If you're passionate about writing clean, efficient code and thrive in a dynamic, supportive environment, we'd love to hear from you.

Design and develop scalable backend applications using .NET and C# with a focus on code quality and performance

Write and optimize SQL queries, including SQL tuning and performance optimization for SQL Server and Oracle databases

Develop and maintain RESTful APIs that integrate seamlessly with frontend applications and third-party services

Collaborate with team members using Agile methodologies to deliver features on schedule and within scope

Implement unit tests and participate in code reviews to ensure code reliability and maintainability

Utilize Version Control systems (Git Hub) effectively to manage codebase and collaborate with the development team

Troubleshoot, debug, and resolve technical issues in a timely and efficient manner

Participate in knowledge-sharing sessions and contribute to continuous improvement of development practices

Work closely with stakeholders to understand requirements and translate them into technical solutions

Stay current with industry best practices and emerging technologies in the .NET ecosystem

Qualifications

Required skills & experience:

Intermediate to advanced proficiency in .NET framework and C# programming

Solid understanding of Object-Oriented Programming (OOP) principles and design patterns

Intermediate to advanced SQL Server knowledge with hands-on experience in SQL tuning and optimization

Experience developing and consuming RESTful APIs

Proficiency with Version Control systems, particularly Git Hub

Hands-on experience with LINQ and Entity Framework or similar ORM technologies

Experience writing unit tests and practicing test-driven development

Demonstrated experience working in Agile development environments

Strong problem-solving skills and analytical mindset

Excellent communication skills and ability to work effectively in collaborative team settings

Preferred skills & experience:

Experience with .NET Core for modern application development

Knowledge of SSIS (SQL Server Integration Services) for data integration tasks

Intermediate-level Oracle database experience

Familiarity with WCF (Windows Communication Foundation) services

Experience with Git Hub Copilot or similar AI-assisted development tools

programming…
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