Senior .Net Developer

Preferred background: Experience within a large organization or insurer, with strong back-end API development expertise. Full-stack experience is not required.

About the Role

As a .NET Backend Developer, you will work in a Scrum team responsible for translating ideas into scalable, production-ready solutions. Your initial priority will be migrating a complex backend from TypeScript to .NET, after which you will contribute to the ongoing development and maintenance of a diverse portfolio of mobile applications and backend services.

Your Responsibilities

• Design and implement innovative solutions for backend APIs and, occasionally, mobile clients.

• Develop and optimize REST APIs for both internal and external consumers.

• Implement integrations with various internal and external REST services.

• Define appropriate backend architectures and select the right technologies.

• Contribute to release strategies, testing processes, and overall software quality.

• Share knowledge with the team and help strengthen the DevOps culture.

• Support the continuous development and maintenance of mobile apps and backend systems.

Your Team

You will join a team that offers a high degree of freedom and responsibility. Innovation is encouraged, but always aligned with practical, results-oriented delivery. Because the team operates across multiple departments, you must be able to deliver value quickly without compromising on stability or quality.
You understand how to balance speed versus robustness and can advise the team accordingly.

What You Bring

• Minimum HBO working and thinking level.

• 5+ years of experience in a similar role.

• Strong, demonstrable experience with .NET/C# and Microsoft Azure.

• Experience with TypeScript is preferred.

• Familiarity with GIT and Azure DevOps (or JIRA).

• Knowledge of Azure services such as Functions, Service Bus, Event Hub, and ADX.

• Experience with mobile development (AI tools, React/TypeScript, Kotlin/Compose) is a plus.

• Experience with CI/CD pipelines is an advantage.

• AZ-204 certification is a plus.

• Affinity with or knowledge of the energy market is beneficial.

• Excellent command of the Dutch language, both spoken and written. Proficiency in English alone is not sufficient for this role.

• Availability to work at least 2 days per week on-site in Utrecht.

Who You Are

• Curious, eager to learn, and open to feedback.

• User-centric in your thinking and solution design.

• Able to communicate effectively with colleagues across different levels and disciplines.

• Flexible and comfortable in a dynamic environment.

• Possess a strong DevOps mindset, working methodically and collaboratively.

• Take ownership of your work and demonstrate perseverance.