Senior .NET Backend Engineer for Certificate Platform

Belmont Lavan Ltd; Viborg; Hybrid; DKK 900,000 - 1,200,000; Full time

Job summary

Belmont Lavan Ltd. seeks a Senior .NET Backend Developer to design, build, and operate a secure certificate provisioning solution for device onboarding and lifecycle management. The role combines hands-on backend development with .NET 8/10, ASP.NET Core, Azure services, X.509 certificates, Windows Services, DevOps, and production support.

Following an on-site intro, the role can be performed remotely. This hands-on role emphasizes security, reliability, troubleshooting, and automation.

Qualifications

• Strong C# and .NET 8/10 expertise.
• Experience building ASP.NET Core APIs and backend services.
• Experience with Windows Services and Azure cloud services.
• Hands-on with X.509 certificates and certificate lifecycle management.
• Proficient in Git, CI/CD pipelines, PowerShell, and Azure DevOps.
• Experience with Windows Server environments and production support.

Responsibilities

• Design, develop, maintain, and support .NET 8/10 backend services and APIs.
• Implement and support certificate workflows (X.509) and lifecycle management.
• Integrate with Azure Blob Storage, Key Vault, and Application Insights.
• Troubleshoot production issues across app, infra, and certificate workflows.
• Maintain CI/CD pipelines, deployment automation, and release processes (Azure DevOps).
• Support production deployments and releases and participate in rollout activities.
• Contribute to testing, code reviews, and engineering best practices.
• Engage in requirements discussion and stakeholder coordination.
• Improve security, reliability, performance, and maintainability of the system.

Skills

C#/.NET

ASP.NET Core

Azure

X.509 Certs

Windows Services

Azure DevOps

Git

PowerShell

Prod Support

Security

Tools

Git

PowerShell

Azure DevOps

Azure Blob Storage

Azure Key Vault

Application Insights

Job description

Belmont Lavan Ltd. seeks a Senior .NET Backend Developer to design, build, and operate a secure certificate provisioning solution for device onboarding and lifecycle management. The role combines hands-on backend development with .NET 8/10, ASP.NET Core, Azure services, X.509 certificates, Windows Services, DevOps, and production support.

Following an on-site intro, the role can be performed remotely. This hands-on role emphasizes security, reliability, troubleshooting, and automation.