Senior .NET Developer

This job has been fulfilled

Purmerend, Netherlands
90.000  -  110.000
Manufactures

Let’s be honest; you’ve probably written code for stuff no one ever sees. Internal tools, reports, dashboards gathering digital dust. Not here. Here, your code actually does something. It helps real people build real things. Think warehouses, tools, logistics and more. Yep, you do good and get paid even better. Keep reading, you’ll be impressed!

Sure, tell me more…

This isn’t some abstract software floating in the cloud. The tech you build connects directly to high-quality hand tools, toolboxes, and storage systems used every day by professionals around the world. Sonic Equipment started as a specialist in hand tools and premium storage solutions — gear trusted by workshops and industries in more than 65 countries.

What makes it special for you as a dev? You’ll work with the latest .NET tech, cloud-native solutions, and a tight-knit team that values your input. Plus, plenty of room to grow and help shape the digital backbone of a global brand focused on quality, innovation, and making life easier for technical pros.

What do I do here?

As a Senior .NET Developer, you take ownership of the backend systems that keep large-scale workshops and tool storage solutions running flawlessly. This means building software to track thousands of high-quality tools, manage digital inventories, and power smart storage systems used in automotive and industrial environments worldwide.

You’ll design, build, and maintain robust APIs, optimize performance across distributed systems, and modernize legacy components to meet today’s high standards. Your work is hands-on and tightly integrated with physical hardware — this isn’t your average cloud-only SaaS gig. Expect to develop features like real-time synchronization for digital toolboxes and secure admin portals used daily by workshop managers and technicians. Your code directly improves how pros handle their gear every day.

Do I got what it takes?

You’ve been shipping production-ready code for several years and confidently take technical ownership while collaborating closely with your team. You know how to architect a clean, maintainable, and scalable codebase that stands the test of time.

You’re fluent in C# and .NET, have solid experience with SQL Server, and know your way around Entity Framework and Azure services. Pragmatic by nature, you balance when to enforce best practices and when to adapt, always thinking a few steps ahead. Whether you’re driving architecture decisions, mentoring colleagues, or diving deep into tricky bugs, you handle it all with skill and eagerness.

Is is worth it?

For sure! We’re talking a solid €90.000,- to €110.000,- per year, depending on your experience and skills. But it’s not just about the money, though that’s definitely nice. You get real chances to level up your skills with top-notch learning and development in an international setting. Count on a monthly pension contribution because retirement matters, plus the flexibility to work from home one day a week.Basically, you get paid well, grow fast, and work somewhere that truly values your craft. Apply now and we speak to you soon!

This job has been fulfilled