H2Mission offer - .NET developer (Junior/medior) /h2 br/ Location: Leuven region (5-10 KM) - 3 days/week on-sitebr/ Duration: Until end of 2026 (renewable)br/ Ideal start date: Within 1 month after signaturebr/ Languages: Dutch (spoken) + Englishbr/ Status: External consultant / freelancebr/ br/ h2Context objective of the mission /h2 br/ The client is looking for a junior to medior .NET developer with 2 to 5 years of experience to strengthen a small team of 6 developers.br/ The main objective of the mission is to work on several technical projects related to security, system refactoring, digital channels (e-invoicing, Peppol integration), and the implementation of new features within the system (fee adjustments, backups, etc.).br/ Due to recent departures (illness, retirement), the client aims to stabilize the team with a long-term external profile (minimum 2-3 years). There is no critical urgency, but a desire to start as soon as possible.br/ br/ h2Technical environment /h2 ul liBackend: .NET Core (mainly), MS SQL Server, Entity Framework /li liFrontend: Blazor (approximately 25% of the work) /li liDevelopment: Mix of new development (from scratch) and maintenance/support /li liMethodology: Team-based work, with expected autonomy and proactivity /li /ul br/ h2Profile /h2 ul li2 to 5 years of experience /li liYoung, motivated, curious, with strong learning ability /li liAble to integrate into a small, dynamic team /li liDutch-speaking (mandatory) and English /li liAvailable 2 to 3 days per week on-site in Leuvenclose the client's identity, as it is a small organization (risk of direct competition) /li /ul