PpWe 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). /p h3Logistics /h3 ul libPosition: /b Freelance .NET Developer (Utilities Sector) /li libLocation: /b Belgium (Hybrid - 1–2 days on-site) /li libStart Date: /b Mid‑May start (urgent) /li libLanguages: /b English (French or Dutch is a strong plus) /li /ul h3Key Responsibilities /h3 ul liDevelop and maintain backend applications using bC# / .NET (Core or Framework) /b /li liBuild and secure bREST APIs /b to support critical utilities operations /li liParticipate in integrations across complex energy‑sector ecosystems /li liContribute to the modernisation of legacy platforms into bmicroservices / service‑oriented architectures /b /li liCollaborate closely with analysts, testers, product owners, and solution architects in bAgile squads /b /li liEnsure code quality, performance, and reliability through testing, reviews, and documentation /li liSupport CI/CD pipelines, DevOps practices, and automated deployment workflows /li liPromote clean coding, maintainability, and continuous engineering improvement across the team /li /ul h3Ideal Candidate /h3 ul lib6+ years of .NET backend development experience /b /li libProven tenure within Belgian utilities companies /b (grid operators, suppliers, water/electricity providers, or market facilitators such as Atrias, Fluvius, Sibelga, ORES, Elia) /li liStrong knowledge of bOOP, SOLID /b, and enterprise application design /li liExperience with bC#, .NET Core /b, API development, SQL Server/Oracle/PostgreSQL /li liFamiliar with integration patterns or messaging technologies (Kafka, MQ, Service Bus) /li liComfortable working in cross‑functional bAgile /b environments /li liStrong communicator with a quality‑driven engineering mindset /li liHands‑on with unit testing, code reviews, and clean architecture principles /li liExperience working in bregulated environments /b /li liUnderstanding of energy market processes or standards (e.g., bMIG6 /b) /li liFamiliarity with bCI/CD /b, DevSecOps, containers, or cloud platforms (Azure preferred) /li liKnowledge of event‑driven architectures (nice to have) /li /ul pInterested in helping shape the future of Belgium’s utilities landscape? /p pApply now - early conversations are already underway. /p /p #J-18808-Ljbffr