Location: Brussels(the option to work from home up to three days a week)
Languages: English and French or Dutch.
Employment Type: Freelance
Start Date: ASAP
End Date: 31/03/2026
Context of the mission/objective(s) of the job
Seeking for one new .NET fullstack developer with strong experience in WPF to support our ongoing initiatives within our existing teams.
The team is working on a complex application Netcalc calculating the electricity Grid impact using Powerfactory.
The new developer must have backend as well as frontend experience (with focus on the backend 80% Be / 20% FE) as Seas is performing complex calculations.
Resource must be comfortable working in a complex/mathematical environment.
Requirements
The developer will be expected to follow Client's standards and ensure high-quality code delivery.
They should have a strong knowledge of the following technologies:
.NET 8 C#
WPF is a MUST.
SQL Server
MongoDB
RabbitMQ
Micro-services architecture
The developer will be expected to follow Elia's standards and ensure high-quality code delivery.
MUST (good level):
C#
.NET
SQL Server / TSQL
Splunk
OpenAPI/Swagger
Blazor
Should:
Clean code, DRY, YAGNI, sonarqube (Quality Gate)?, Coverage
MicroService design
Tracing
Monitoring
Logging
Azure
Angular 17+, React 18+, TypeScript
Soft Skills: The candidate should possess good communication skills, take accountability for their tasks.
Additional information
Location: Brussels, with the option to work from home up to three days a week. In case of travels to Germany, Client will cover all costs