Belmont Lavan

Senior .NET Backend Developer 6 Months Contract

Belmont Lavan  •  Viborg, DK (Remote)  •  2 hours ago
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Job Description

We are looking for a Senior .NET Backend Developer to develop, maintain, and support a secure certificate provisioning solution that enables secure device onboarding and end-to-end certificate 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. You will work across application development, cloud services, security, integrations, deployment, and operational support.

The ideal candidate will have strong backend development experience and be comfortable working in production environments where security, reliability, troubleshooting, and automation are critical.

Following an initial on-site introduction, the role can be performed remotely.

Requirements

  • Design, develop, maintain, and support .NET 8/10 backend services, Windows Services, and ASP.NET Core APIs.
  • Implement and support X.509 and other certificate-related workflows, including certificate generation, validation, storage, renewal, and lifecycle management.
  • Develop and maintain integrations with Azure Blob Storage, Azure Key Vault, and Application Insights.
  • Troubleshoot and resolve production issues across application, infrastructure, integration, and certificate-related workflows.
  • Maintain and improve CI/CD pipelines, deployment automation, and release processes using Azure DevOps.
  • Support production deployments and participate in production rollouts.
  • Contribute to automated and manual testing, code reviews, and software engineering best practices.
  • Participate in requirements clarification, technical discussions, and coordination with relevant stakeholders.
  • Contribute to the continuous improvement of system security, reliability, performance, and maintainability.
  • Provide technical support and investigation for issues across development, test, and production environments.

Essential Skills & Experience

  • Strong professional experience with C# and .NET 8/10.
  • Solid experience developing ASP.NET Core APIs and backend services.
  • Experience developing and maintaining Windows Services.
  • Hands-on experience with Microsoft Azure, particularly:
  • Practical knowledge of X.509 certificates and certificate lifecycle management.
  • Strong understanding of asynchronous programming, dependency injection, file handling, and backend troubleshooting.
  • Experience with Git, PowerShell, CI/CD pipelines, and Azure DevOps.
  • Experience working with Windows Server environments.
  • Strong troubleshooting and problem-solving skills, with the ability to investigate issues across application and infrastructure layers.
  • Comfortable working with production systems and supporting releases and deployments.

Desirable Skills & Experience

  • 5+ years of professional .NET backend development experience.
  • Familiarity with OpenSSL and certificate automation.
  • Experience with secure credential and secret management.
  • Experience with production monitoring, observability, and application diagnostics.
  • Experience developing or maintaining enterprise integrations.
  • Experience working in security-focused or device onboarding environments.
  • Understanding of secure software development practices and enterprise deployment processes.

Working Environment

This is a hands-on engineering role covering both development and production support. The successful candidate should be comfortable taking ownership of technical issues from investigation through to implementation, deployment, and production rollout.

Location: Initial on-site introduction, followed by remote working.

Role focus: .NET Backend Development | Azure | Certificate Management | DevOps | Production Support | Security

Belmont Lavan

About Belmont Lavan

We are a bespoke consultancy specialising in System Integration and Solution-building services for businesses looking to establish or scale their capabilities in EAM, ERP, CRM, AI, and IoT. Our mission is to help organisations to streamline their operations, build successful technology practices, and navigate complex compliance landscapes.

Do you have the systems in place to effectively grow and manage your key practice areas? Are you leveraging the latest digital tools and strategies to drive business growth? If the answer to these questions is no, or you’ve never considered them, you’re likely missing out on opportunities to strengthen your business operations and achieve your goals.

BENEFITS for Our Clients:

- Access to top expertise: Our proven methods give you direct access to the best strategies for building and optimising EAM, ERP, CRM, AI, and IoT solutions across Europe.

- Save Time: By limiting our client engagements and capping our annual workload, we ensure your project receives focused attention, delivering impactful results quickly.

- Accelerate your projects: With numerous examples of solution-building implemented within weeks of our initial strategy call, we’ve helped clients accelerate project timelines, protect revenue, and enhance their competitive edge.

- Reduce costs: Our end-to-end consultancy services align your solution-building efforts with industry best practices, driving higher efficiency and reducing operational costs.

Why Work With Us:

With our industry-leading expertise, you’ll receive clear, actionable guidance to build and optimise your technology. We provide ongoing support to ensure your business stays agile and competitive.

Whether you’re looking to launch a new software or optimise an existing one, we provide the expertise and insights to help you succeed. Our continuous support means you stay informed of industry trends and can make agile, informed decisions.

Industry
IT & Software
Company Size
11-50 employees
Headquarters
Hoofdorp, NL
Year Founded
2001
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