Company & Mission Description
Excited to work on a project for a key player in the energy landscape?
The Belgian, German, and European energy markets are undergoing a major transformation. Our client, a leading company operating in the Energy Sector and part of a European transmission system operator group, plays a crucial role in ensuring a reliable and sustainable electricity supply.
Working alongside other consultants and internal teams, you will contribute to building a green, reliable, and future-proof energy infrastructure that stimulates economic growth while reducing environmental impact. The organization strongly believes in the power of diversity and inclusion, fostering innovation, creativity, and better results through collaborative teamwork.
Only together can we make the biggest impact possible.
Service Description
Our client is looking for 1 Senior .NET Developer to support ongoing initiatives within existing development teams.
Start date: Beginning of February (no later than end of February)
Work regime: Full-time
Location: Brussels, Belgium
Onsite presence: Minimum 2 days per week onsite (default requirement)
The consultant will be expected to follow internal development standards and ensure high-quality, maintainable code delivery.
Technical Requirements
The candidate must have strong professional experience with:
.NET 8
Entity Framework Core
WPF
SQL Server
MongoDB
RabbitMQ
Micro-services architecture (considered a strong plus)
Soft Skills
Strong communication abilities
Sense of accountability and ownership
Team player with proactive attitude
Languages
French - with passive understanding of Dutch
Dutch - with passive understanding of French
Very good command of English (mandatory)
Additional Information
Work Permit Requirements (for non-EU candidates)
If the consultant will work in Belgium, they must:
Possess a valid work permit allowing employment in Belgium
Hold a valid residence permit confirming right of residence
Contractual Conditions
Local purchasing and contracting conditions will apply depending on where the Purchase Order is issued. The client reserves the right to modify the PO location in line with internal procedures and tender regulations.
Why Join This Mission?
Strategic project within a reference organization in the Energy Sector
Opportunity to contribute to the energy transition and innovative technologies
Strong focus on well-being at work and positive culture
Work within a diverse, inclusive, and highly skilled team
There's something electric in the air with this mission!
Candidate Submission Information
Proposal Deadline: 27/01/2026 - 00:00
Number of profiles requested: 1
Candidate Details to Provide
Years of relevant experience:
Level of English:
Level of French:
Level of Dutch:
Contract type:
☐ Consultant on payroll
☐ Contracted freelancer
Have you conducted a thorough interview with the candidate to assess motivation, skills, and to share the service description?
☐ Yes / ☐ No
Has the consultant/freelancer already taken an assignment with our client in the Energy Sector?
☐ Yes / ☐ No
Has the consultant been presented to our client during the past 12 months?
☐ Yes / ☐ No
Has the consultant had an interview with our client during the past 12 months?
☐ Yes / ☐ No
If Yes to any of the above → Please elaborate
If No to all three → write N/A
Is the consultant currently in another selection procedure with our client?
☐ Yes / ☐ No
Availability to start if selected:
Availability in line with Telework Policy: ☐ Yes / ☐ No
Work permit / residence status:
Please specify applicable option
Technical Screening Questions
Professional experience with WPF - how many years?
Professional experience with FE (Framework Entity) - how many years?
Total years of experience in .NET development?
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