Senior .NET - Blazor Developer - Energy Sector - ASAP Start - Brussels - Freelance / CDI

AlterSolutions

Brussels, Brussels, Belgium permanent

Posted: February 24, 2026

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Quick Summary

We are seeking an experienced .NET Developer to strengthen our existing development teams and support ongoing initiatives. The selected consultant should be able to work remotely and have experience in the energy sector.

Required Skills

.NET Blazor Entity Framework Core SQL Server MongoDB RabbitMQ TDD Microservices

Job Description

The organisation operates within a rapidly evolving European energy landscape, contributing to the reliability and sustainability of electricity supply across multiple countries. You will join a diverse and inclusive environment that values collaboration, innovation, and long-term positive impact on society. Together with internal teams and contingent workers, you will help build a greener and more resilient energy infrastructure.

We are seeking an experienced .NET Developer to strengthen our existing development teams and support ongoing initiatives. The selected consultant should be available to start between mid-February and mid-March.

Technical Requirements

The developer must deliver high‑quality code aligned with internal standards, and demonstrate strong proficiency in:

• .NET 8
• Entity Framework Core
• Blazor WebAssembly
• SQL Server
• MongoDB
• RabbitMQ
• Test‑Driven Development (TDD)

Nice to have:

• Experience with microservices architecture

Soft Skills

We are looking for someone who:

• Communicates clearly and effectively
• Takes ownership of their work and responsibilities
• Collaborates constructively with team members

Languages

• French (fluent), with at least a passive understanding of Dutch OR Vice Versa
• English (professional level)

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