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# Senior .NET Developer (ZZP)

- **Company:** Utilus
- **Location:** Amsterdam, Netherlands
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** ASP.NET, .NET Framework, Application Programming Interfaces (APIs), Microsoft Azure, C Sharp (Programming Language), Standard Sql, Software Systems, Backend, Containerization, Kubernetes, Restful APIs, Microservices
- **Published:** October 8, 2026
- **Apply:** https://www.adzuna.nl/details/5917392311

## About the Role

* Bachelor's/Master degree in IT (or related) field
 * Strong C#/.NET Core development experience (5-8 years)
 * Proficiency in ASP.NET Core for building scalable APIs and microservices.
 * Experience with containerization and Kubernetes deployments.
 * Strong problem-solving abilities and attention to detail.
 * Effective communication and cross-team collaboration.
 * Ability to adapt quickly in fast-changing, ambiguous environments and domains.

Nice-to-Have:

 * Experience with Microsoft Azure services
 * Solid understanding of SQL
 * Experience in the energy industry, * Challenging project in the energy sector

## Description

The Senior .NET Developer is responsible for designing, developing, and deploying high-value, high-performance backend services. The engineer will work with modern .NET technologies to build scalable APIs and services, enabling improved efficiency, compliance, and scalability across the energy ecosystem.
Key Responsibilities Senior .NET Developer

 * Refine functionalities with end users or stakeholders.
 * Design and implement the technical solution in the ecosystem of scalable services and APIs using ASP.NET Core.
 * Design and suggest architecture patterns, and defend them with logical, documented reasoning.
 * Construct software systems from scratch in an observable, stable, scalable, and maintainable manner.
 * Handle the life cycle of the deliverables. CI/CD pipelines, build, containerize, and deploy to a Kubernetes cluster (usually).
 * Troubleshoot production and development issues to ensure timely resolution and propose/implement a structural fix for the future