Fullstack .NET Developer

Mission Overview: We are seeking an experienced Fullstack .NET Developer for a consultancy mission at a client site, representing Keystone Solutions. In this dynamic environment, you will collaborate with a multidisciplinary team to design, develop, and maintain .NET applications, ensuring high quality and performance. Key Responsibilities: Design, develop, and maintain .NET applications using C# and .NET Core. Translate functional analyses into technical analyses and assist business analysts in validating technical specifications. Analyze and resolve technical issues, providing second-level bug fixes and technical support to colleagues. Continuously improve development processes and software quality by following trends in technologies and methodologies. Automate and ensure continuous integration by setting up pipelines and unit tests for a stable development, testing, and production environment. Collaborate with the agile team in a SAFe environment, working closely with developers, testers, business analysts, product owners, and scrum masters to deliver software iteratively and incrementally. Contribute to technical documentation and knowledge sharing within the team, preparing and reviewing documentation created by junior developers. Required Experience and Competencies: Bachelor's or Master's degree in Computer Science or equivalent experience. At least 5+ years of experience as a .NET developer. 3+ years of experience working in Agile/Scrum environments. Behavioral Skills: Excellent problem-solving and analytical skills. A mindset focused on continuous learning and improvement, eager to learn new technologies and methodologies. Strong communication skills, both verbal and written, with the ability to explain technical concepts clearly to both technical and non-technical stakeholders. Collaborative and socially skilled. Adaptability and flexibility, able to switch between tasks and priorities quickly, and handle unexpected changes and obstacles. Proactive and autonomous work style. Sense of responsibility and customer orientation. Languages: Fluent in French or Dutch. Second language: understanding and basic written and oral communication. English: understanding. Work Regime: 2 days per week on-site, with the option to work remotely for the other 3 days. Plus: Knowledge of Oracle PL/SQL is a plus. If you are ready to tackle technical and strategic challenges in a dynamic consultancy environment, apply today at Keystone Solutions Career Portal . Duration: 14/09/2026 - 31/12/2026 4 months • (full time) Skills required: .NET Framework - Level: Confirmed - Most recent: Any time Azure Cloud ervaring met CI/CD-pijplijnen in Azure DevOps - Level: Junior - Most recent: Any time Azure DevOps - Level: Confirmed - Most recent: Any time Blazor - Level: Confirmed - Most recent: Any time C# - Level: Confirmed - Most recent: Any time gRPC (gRPC Remote Procedure Calls) - Level: Junior - Most recent: Any time ms sql - Level: Confirmed - Most recent: Any time NServiceBus (of ander messaging patroon) - Level: Confirmed - Most recent: Any time Windows communication foundation (WCF) - Level: Junior - Most recent: Any time Language requirements: Dutch or French Level Native English Level Passive knowledge