Senior .NET Developer

Closes on 13/11/2026BrusselsHybrid, 40% on siteStarts on 23/11/2026
Remuneration: 3.700 - 4.350 EUR/mo gross ·Freelance also possible

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Job description

We are looking for a Senior .NET Developer to build accessible digital services in the health domain. You will take ownership of Blazor user interfaces and the .NET services behind them as applications move towards a cloud-native Azure architecture. The role combines hands-on delivery with technical guidance and coaching.

Your role

  • Develop features, reusable components and APIs in C#, .NET and Blazor.
  • Design responsive interfaces that meet accessibility standards and contribute to a shared component library and design system.
  • Work with analysts, architects, UX, security, platform and operations colleagues to translate needs into technical solutions.
  • Implement secure authentication, API integrations and end-to-end functionality.
  • Review code, build automated tests and use CI/CD pipelines to deliver reliable releases.
  • Diagnose performance and production issues, coach developers and help improve engineering practices.
  • Evaluate relevant web and AI-assisted development practices.

You have

  • Eight years of Agile experience.
  • Eight years of Scrum experience.
  • One year of professional experience with AI-assisted development.
  • Three years of Blazor experience, including Web App render modes.
  • Three years of experience with Razor components.
  • Eight years of C# experience.
  • Five years of Entity Framework Core experience.
  • Five years of SQL experience.
  • Six years of Git experience.
  • Six years of Azure DevOps experience.
  • Six years of experience with CI/CD pipelines.
  • Six years of HTML experience.
  • Six years of CSS experience.
  • Six years of responsive design experience.
  • Six years of experience with modern .NET.
  • Six years of ASP.NET Core experience.
  • Five years of OAuth 2.0 experience.
  • Five years of OpenID Connect experience.
  • Five years of JWT experience.
  • Five years of experience with claims-based authorisation.
  • Six years of REST API experience.
  • Six years of experience with JSON exchanges.
  • Six years of unit testing experience.
  • Six years of component testing experience.
  • Six years of integration testing experience.
  • Six years of experience with automated UI testing.
  • Three years of web accessibility experience with WCAG 2.1 AA.
  • English at C1 level.
  • French at C1 level.
  • Dutch at C1 level.

A plus

  • Three years of Microsoft Azure experience.
  • Two years of experience maintaining .NET Framework applications.
  • Two years of experience with Azure Service Bus or NServiceBus.
  • Two years of JavaScript or TypeScript experience.
  • Two years of experience with JavaScript-Blazor interoperability.
  • Knowledge of SharePoint document management or WORM legal document stores.
  • Experience with asynchronous programming.
  • Experience with dependency injection.
  • Experience with clean code practices.
  • Experience with reusable component libraries such as MudBlazor.
  • Experience testing accessibility with assistive technologies.
  • Experience with bUnit for Blazor component tests.
  • Experience with Playwright.
  • Experience with SonarQube static analysis.
  • Experience conducting code reviews.
  • Experience with application security practices.
  • Experience applying front-end design patterns.
  • Experience designing scalable front-end architecture.
  • Experience diagnosing client-side performance with browser developer tools.
  • Experience with Dynatrace for diagnostics.
  • Understanding of containerised deployment.
  • Understanding of distributed systems.
  • Ability to guide developers and provide constructive feedback.
  • Ability to work with multidisciplinary stakeholders.
  • Analytical problem-solving skills.
  • Ability to compare technical options and explain trade-offs.
  • Ability to translate user needs into accessible digital experiences.

Working at Neurho

Founded in 1998, Neurho is a Belgian IT and business consultancy. For more than 25 years, we have been helping banks, insurers, energy companies and public institutions in Belgium and Luxembourg with their transformation projects. At Neurho, you work on varied and challenging assignments, where your expertise is recognised and your growth encouraged. On top of your salary, you enjoy many extra-legal benefits, designed to suit your role, your needs and your personal wishes.

Neurho is committed to equal opportunity and welcomes every application, regardless of age, origin, nationality, gender, social background, beliefs or disability.