> Markdown version of [/jobs/ext/3610975-senior-fullstack-net-developer](https://www.wearedevelopers.com/jobs/ext/3610975-senior-fullstack-net-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Fullstack .NET Developer - **Company:** Jumbo Supermarkten - **Location:** Veghel, Netherlands - **Experience:** Expert - **Salary:** €5,900.0 - €7,600.0 - **Contract:** Permanent contract - **Skills:** .NET Framework, Agile Methodology, Architectural Patterns, Unit Testing, Microsoft Azure, Command-Query Responsibility Segregation (Software Development), DevOps, Github, Model View ViewModel, Scrum Methodology, E2e Testing, SQL Databases, Web Applications, Blazor, Solid Principles, Web Api, Microservices - **Published:** October 8, 2026 - **Apply:** https://www.adzuna.nl/details/5917395401 ## About the Role * At least 5 years of relevant work experience as a .NET Developer * Experience with .NET 8 or 9, Web API, Microservices, and Azure (Web Apps, Functions, SQL) * Experience or strong knowledge of architectural patterns such as MVVM, CQRS, and Mediator (e.g., MediatR) * Professional experience with Blazor * A passion for writing clean, maintainable, and testable code following SOLID principles * Experience with GitHub or Azure DevOps, and knowledge of unit testing and end-to-end testing * Experience working in Scrum/Agile/DevOps environments and collaborating across teams * Excellent command of the English language ## Description * As a Senior Full Stack Developer, you design, develop, and maintain .NET solutions and microservices. You work with modern technologies such as .NET 9, Azure, and Blazor, and drive innovation following Agile and DevOps principles. * By building high-quality, scalable systems, you ensure that Jumbo's digital products perform at their best. This enhances the customer experience-both online and in stores-and supports Jumbo's digital ambitions. * You work in a close-knit .NET team of seven colleagues, supported by a Scrum Master and Product Owner. Together, you create state-of-the-art solutions and continuously challenge existing standards. * You collaborate closely with Product Owners, the Scrum Master, business stakeholders, and other development teams. Additionally, you coordinate with UX designers and cloud specialists to integrate and continuously improve solutions.