Brussels (Hybrid) or Remote within Spain | Occasional travel required
I'm currently working with a leading international organisation operating in a highly secure, multinational environment, supporting critical systems and services used across multiple countries.
They are looking for an experienced Senior .NET Web Developer to join a team building and maintaining enterprise-grade web applications that are secure, scalable and designed for long-term impact.
Responsibilities
* Designing, developing and maintaining modern web applications across the full software development lifecycle.
* Building robust backend services using .NET and Entity Framework Core.
* Developing modern frontend applications using JavaScript and Svelte/SvelteKit.
* Creating and consuming REST APIs to integrate with enterprise systems and identity services.
* Contributing to architecture, application security, performance and scalability improvements.
* Working within CI/CD environments and supporting cloud-ready application deployments.
Qualifications
* Strong experience developing enterprise web applications using modern .NET technologies.
* Solid knowledge of .NET (current LTS versions), Entity Framework Core, REST API design and integration.
* SQL Server, JavaScript, Svelte/SvelteKit.
* Experience with secure software development practices.
* Familiarity with CI/CD pipelines, monitoring and application lifecycle management.
* Experience working with Git and modern development tooling.
* Strong English communication skills.
Nice to Have
* Experience deploying applications to cloud environments.
* Knowledge of identity and authentication systems.
* French language skills.
* Experience working in international, public sector, defence or highly regulated environments.
Why join?
Work on meaningful projects with real-world impact. Modern technology stack with both backend and frontend ownership. International and collaborative environment. Versatile working model: Brussels or remote within Europe. Long-term projects focused on quality, security and innovation.
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