Senior .NET Backend Engineer — Remote (Azure & Certificates)

Rdtengineers; Viborg Kommune; Hybrid; DKK 700,000 - 1,000,000; Full time

Job summary

RDT is seeking a Senior .NET Backend Developer to build a secure certificate provisioning solution for device onboarding and lifecycle management. The role blends hands-on backend work with .NET technologies, Azure services and DevOps. After an initial onsite introduction, remote work is possible.

You will develop and maintain backend services, Windows Services, and certificate handling, while ensuring robust CI/CD processes and production readiness across Windows environments.

Qualifications

• Strong hands-on experience with C#/.NET and ASP.NET Core.
• Experience with Azure Blob Storage, Key Vault and Application Insights.
• Hands-on experience with X.509 certificates or certificate lifecycle management.
• Experience with Windows Services.
• Experience with Azure DevOps, Git and CI/CD.
• Good understanding of async programming, dependency injection and file handling.
• Experience troubleshooting applications in production / Windows Server environments.
• Nice to have: OpenSSL and certificate automation, production monitoring and observability.

Responsibilities

• Develop and maintain backend services using C#, .NET 8/10 and ASP.NET Core.
• Develop and maintain Windows Services.
• Work with X.509 certificates, including generation, validation, storage and lifecycle management.
• Maintain integrations with Azure Blob Storage, Key Vault and Application Insights.
• Troubleshoot application, infrastructure and certificate-related production issues.
• Maintain CI/CD pipelines and deployment processes using Azure DevOps.
• Contribute to testing, code reviews and engineering best practices.
• Support requirements clarification, stakeholder coordination and production rollouts.

Skills

Async programming

Dependency injection

File handling

Production troubleshooting

Tools

C#/.NET

ASP.NET Core

Azure

X.509 certificates

Windows Services

Azure DevOps

Git

CI/CD

Application Insights

Job description

RDT is seeking a Senior .NET Backend Developer to build a secure certificate provisioning solution for device onboarding and lifecycle management. The role blends hands-on backend work with .NET technologies, Azure services and DevOps. After an initial onsite introduction, remote work is possible.

You will develop and maintain backend services, Windows Services, and certificate handling, while ensuring robust CI/CD processes and production readiness across Windows environments.