Mission offer -. NET developer (Junior/medior)Ready to apply Before you do, make sure to read all the details pertaining to this job in the description below.Location: Leuven region (5-10 KM) - 3 days/week on-siteDuration: Until end of 2026 (renewable)Ideal start date: Within 1 month after signatureLanguages: Dutch (spoken) + EnglishStatus: External consultant / freelanceContext & objective of the missionThe 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.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.).Due to recent departures (illness, retirement), the client aims to stabilize the team with a long-term external profile (minimum 2-3 years). xirbnpk There is no critical urgency, but a desire to start as soon as possible.Technical environmentBackend:. NET Core (mainly), MS SQL Server, Entity FrameworkFrontend: Blazor (approximately 25% of the work)Development: Mix of new development (from scratch) and maintenance/supportMethodology: Team-based work, with expected autonomy and proactivityProfile2 to 5 years of experienceYoung, motivated, curious, with strong learning abilityAble to integrate into a small, dynamic teamDutch-speaking (mandatory) and EnglishAvailable 2 to 3 days per week on-site in Leuvenclose the client's identity, as it is a small organization (risk of direct competition)