Backend Developer (C#/.NET)

Prime Staffing B.V.; Den Haag; On-site; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Opportunities for professional development

Inspiring workplace

Close-knit team

Job summary

Prime Staffing B.V. seeks a passionate .NET Developer in Den Haag. You will develop and enhance features, debug legacy components, and collaborate in an agile DevOps team. Ideal candidates have solid experience with C#, .NET Core, SQL, and microservices. The full-time position offers opportunities for personal and professional development in a supportive workplace that values teamwork and innovation.

Qualifications

• Solid experience with C#, .NET Core, and SQL.
• Hands-on knowledge of microservices design or maintenance.
• Interest in modern tooling and emerging technologies.

Responsibilities

• Developing and enhancing features within existing applications.
• Ensuring stability and performance across microservices.
• Debugging and troubleshooting legacy components.
• Collaborating closely in an agile DevOps setting.

Skills

C#

.NET (Core)

SQL

Microservices

Kubernetes

RabbitMQ

Google BigQuery

Education

Higher professional or academic working level

Job description

Team: Professional, supportive, and fun to work with

The Role

Are you a passionate .NET Developer who thrives in a collaborative environment? We are looking for someone who enjoys tackling technical challenges, building high-quality solutions, and continuously improving both code and processes. You’ll join a multidisciplinary DevOps team that values teamwork, knowledge sharing, and innovation.

In this role, you will help shape scalable applications, optimize system performance, and keep our products future-proof. You’ll be involved in everything from designing new features to maintaining and improving the current architecture.

What You’ll Be Doing

• Developing and enhancing features within our existing applications
• Ensuring stability and performance across a modern microservice landscape
• Debugging, troubleshooting, and refactoring legacy components
• Collaborating closely with teammates in an agile DevOps setting
• Working with technologies like .NET Core, Kubernetes, RabbitMQ, and Google BigQuery

What You Bring

• A higher professional or academic working level (or equivalent experience)
• Solid experience with C#, .NET (Core), and SQL
• Hands-on knowledge of microservices (design or maintenance)
• Interest in modern tooling and emerging technologies
• A proactive mindset with eagerness to grow and learn
• Familiarity with Kubernetes and message brokers (e.g. RabbitMQ)

Why Join Us?

• A full-time position (40 hours) based in The Hague
• An inspiring workplace where collaboration and fun go hand in hand
• A close-knit team that values your ideas and contributions
• Opportunities for professional and personal development
• Challenging projects where your expertise makes a real difference