Software Developer (.NET Core & Umbraco) UK

Inspirec has partnered with a dynamic and innovative leader in the technology industry, who are seeking a highly motivated Software Developer (.NET Core & Umbraco) to join their growing team. As a cutting-edge provider of app development, cyber security, and cloud services, they are committed to delivering high-quality solutions to their clients that empower businesses to thrive in the digital era.

ROLE OBJECTIVE:

We are looking for a versatile Software Developer with strong experience in .NET Core and Umbraco CMS. This role requires someone comfortable with both backend API development and CMS-based website implementation. You will work across multiple layers of the application stack, following best practices in Test-Driven Development (TDD) and Behaviour-Driven Development (BDD).

RESPONSIBILITIES:

• Develop and maintain backend solutions using ASP.NET Core
  
  
• Build and integrate secure, scalable RESTful APIs
  
  
• Implement and manage content-driven websites using Umbraco CMS (v8 or higher)
  
  
• Follow TDD and BDD methodologies to ensure code quality and coverage
  
  
• Write automated unit, integration, and BDD-style tests (e.g., using xUnit, SpecFlow)
  
  
• Collaborate with UI/UX designers, frontend developers and DevOps teams
  
  
• Ensure responsive design and accessibility in Umbraco-based websites
  
  
• Participate in sprint planning, code reviews, deployments, and documentation
  
  EXPERIENCE:
  
  
• Proven experience with .NET Core / ASP.NET MVC
  
  
• Hands-on expertise in Umbraco CMS development (templating, custom components, integrations)
  
  
• Solid understanding of REST APIs, authentication (OAuth2/JWT), and backend logic
  
  
• Strong grasp of TDD/BDD principles and testing frameworks (e.g., xUnit, NUnit, SpecFlow)
  
  
• Frontend proficiency: HTML5, CSS3, Razor, and JavaScript
  
  
• Experience with PostgreSQL/SQL Server, Git and CI/CD tools (e.g., Azure DevOps)
  
  NICE TO HAVE:
  
  
• Experience working in agile environments and cross-functional teams
  
  
• Familiarity with SEO, multilingual site setup and content strategy
  
  
• Understanding of security best practices (OWASP, GDPR, ISO27001)
  
  
• Experience deploying on Azure App Services or similar cloud platforms
  
  
• Have Azure certification
  
  
• Have Umbraco certification
  
  
• Ability to work under pressure and manage multiple tasks effectively
  
  BENEFITS:
  
  
• Competitive Salary: Base salary commensurate with experience, plus performance-based incentives.
  
  
• Career Progression: Clear pathways for career development and progression within the company.
  
  
• Training & Development: Ongoing training and development opportunities to help you grow in your role.
  
  
• Supportive Culture: Join a collaborative, friendly, and ambitious team that values work-life balance and personal growth.
  
  If you're a goal-oriented, ambitious professional looking to take yourself to that next level, then we’d love to hear from you