We are seeking an experienced Freelance .NET Developer to support major digital, integration, and regulatory transformation projects within one of Belgium’s leading utilities organisations (energy, grid operations, metering, or market facilitation).
Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required.
Logistics
Position:
Freelance .NET Developer (Utilities Sector)
Location:
Belgium (Hybrid - 1–2 days on-site)
Start Date:
Mid‑May start (urgent)
Languages:
English (French or Dutch is a strong plus)
Key Responsibilities
Develop and maintain backend applications using
C# / .NET (Core or Framework)
Build and secure
REST APIs
to support critical utilities operations
Participate in integrations across complex energy‑sector ecosystems
Contribute to the modernisation of legacy platforms into
microservices / service‑oriented architectures
Collaborate closely with analysts, testers, product owners, and solution architects in
Agile squads
Ensure code quality, performance, and reliability through testing, reviews, and documentation
Support CI/CD pipelines, DevOps practices, and automated deployment workflows
Promote clean coding, maintainability, and continuous engineering improvement across the team
Ideal Candidate
6+ years of .NET backend development experience
Proven tenure within Belgian utilities companies
(grid operators, suppliers, water/electricity providers, or market facilitators such as Atrias, Fluvius, Sibelga, ORES, Elia)
Strong knowledge of
OOP, SOLID, and enterprise application design
Experience with
C#, .NET Core, API development, SQL Server/Oracle/PostgreSQL
Familiar with integration patterns or messaging technologies (Kafka, MQ, Service Bus)
Comfortable working in cross‑functional
Agile
environments
Strong communicator with a quality‑driven engineering mindset
Hands‑on with unit testing, code reviews, and clean architecture principles
Experience working in
regulated environments
Understanding of energy market processes or standards (e.g.,
MIG6 )
Familiarity with
CI/CD, DevSecOps, containers, or cloud platforms (Azure preferred)
Knowledge of event‑driven architectures (nice to have)
Interested in helping shape the future of Belgium’s utilities landscape? xphnsxz
Apply now - early conversations are already underway.
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