Senior Fullstack .NET Developer

• 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
• Passion for writing clean, maintainable, and testable code according to SOLID principles
• Experience with GitHub or Azure DevOps and knowledge of unit testing and end-to-end testing
• Experience with the Scrum/Agile/DevOps methodology and collaboration between teams

• Excellent proficiency in the English language.

• A gross salary between €5,900 - €7,600 per month (based on 40 hours).
• An annual bonus of max 7.5% of your annual salary based on organizational objectives.
• 30 vacation days (with the possibility to buy or sell vacation days) and 8% holiday allowance. You build up a pension through participation in the Bedrijfstakpensioenfonds voor het Levensmiddelenbedrijf (Industry Pension Fund for the Food Industry).
• An allowance for your travel expenses (€ 0.21 cents per kilometer with a max. of 35 kilometers one way). We like to work together in the office, but you can also work partly from home.
• Room for entrepreneurship, growth, and development. Not only in your job but also via our Jumbo Academy, online training via GoodHabitz, and with a training budget.
• A (di)verse lunch in our Foodcafé, good coffee, and fresh fruit. For a small fee, you can exercise in our Jumbo Gym.
• Various colleague discounts, such as a 10% discount on your groceries (max. € 325 per year), participation in our collective health insurance, and great discounts via Benefits at Work.

At Jumbo, we want to inspire our customers every day - whether they are shopping online, visiting our stores, exploring our food markets, or enjoying themselves in our restaurants. Our mission is to support them at every step of their journey, building sustainable loyalty and turning customers into true fans.

As a Senior Full Stack Developer, you will play a key role in realizing Jumbo's digital ambitions. Together with the .NET team, you will work on a wide range of responsibilities: from designing and developing to maintaining and improving our systems.

You will work intensively with colleagues from the business and other developers to ensure that our products meet the high quality and performance standards we maintain at Jumbo. Your ability to adapt to the latest technologies, think ahead, and continuously improve makes you of great value within our team.

Together we are Jumbo: This is where you will work

At Jumbo, no two days are the same. A lot happens, we switch gears quickly, and we are constantly looking at how we can do things better - for our customers and for each other. We encourage you to see opportunities, take initiative, and actively contribute to our collective goals. You will work in an informal and energetic work environment, with room for your own ideas, humor, fun, and of course, a healthy dose of Jumbo DNA. Taking action together to win the customer, that is what we do it for.

We are a close-knit team of seven colleagues with a broad set of skills, supported by a Scrum Master and a Product Owner. Together, we are part of the broader Customer & Assortment department. We believe in creating state-of-the-art solutions in everything we do. We achieve this thanks to our shared passion for getting the most out of the latest technologies (including AI) by working according to Agile and DevOps principles and by constantly challenging existing standards. We are proud to work with modern technologies such as .NET 9, Azure, Blazor, microservices, and advanced design patterns, with which we deliver high-value solutions and celebrate results together.