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

Sorry, this job was removed at 06:11 p.m. (CST) on Friday, Apr 24, 2026
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Brussels, BEL
In-Office
Information Technology • Consulting
The Role
Company Description

Interested in contributing to a large-scale project for a major player in the European energy sector?

The European energy landscape is evolving rapidly. This mission takes place within a leading transmission system operator operating in Belgium and Germany, playing a key role in ensuring a reliable, sustainable, and future‑proof electricity supply.

Working alongside internal teams and other contingent workers, you will contribute to the development of a green, reliable energy infrastructure that supports economic growth while reducing environmental impact. Collaboration, diversity, and inclusion are central values, fostering innovation and high‑quality outcomes.

Job Description

The client is looking for a Senior .NET Developer to support ongoing initiatives within existing development teams.

Requirements

Must-have

  • .NET
  • WPF
  • SQL Server
  • Strong knowledge of MVVM
  • Strong knowledge of Microservices architecture
  • Strong knowledge of REST APIs

Nice-to-have

  • DAPR
  • RabbitMQ
  • MongoDB

Qualifications

Languages

  • French with passive knowledge of Dutch, or
  • Dutch with passive knowledge of French
  • English

Practical Information

  • Work regime: Full-time
  • Location: Brussels (on-site) + remote work (up to 3 days/week)
  • Work authorization:
    • For non‑EU candidates working in Belgium:
      • Valid Belgian work permit
      • Valid residence permit

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The Company
HQ: Versailles
616 Employees
Year Founded: 2006

What We Do

The Alter Solutions Group is an IT Consultancy group, promoter of Digital Transformation, created in 2006, in Paris. In 2022, Alter Solutions joined the act digital group, constituting a global community of talent in Technology, with presence in twelve countries: Germany, Belgium, Brazil, United States of America, Canada, Morocco, Spain, France, Luxembourg, Poland, Portugal and Serbia. In 2023, we were recertified as a Great Place to Work®. Know more about Life at Alter: https://www.linkedin.com/company/alter-solutions-group/life/altersolutionsgroup

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