Senior Backend Developer

This is a remote position.

A UK-based company is hiring a skilled Backend.NET Developer to join our team and play a key role in delivering a high-impact project. The ideal candidate will have a strong background in Microsoft technologies, excellent problem-solving skills, and experience integrating complex back-end functionality with front-end systems.

You will work closely with the Head of Development and collaborate with a front-end developer to bring this project to life. A functional specification and project requirements will be provided, but you will be responsible for designing and implementing technical solutions that meet business needs.

• Integrate front-end components into Umbraco CMS
  

• Build and customize back-office editors for modules
  

• Enhance back-office UX to ensure ease of use for content editors
  

• Create templates, configuration options, and theming capabilities for components
  

• Develop and integrate RESTful APIs and handle third-party integrations (e.g., CRMs, payment gateways, marketing tools)
  

• Implement job search functionality within the system
  

• Ensure high-quality code through unit testing and browser testing
  

• Optimize performance, scalability, and security
  

• Collaborate in an Agile/Scrum environment to deliver features iteratively
  

Requirements

• Umbraco CMS (v8/9/10+): custom development, templates, back-office extensions; familiarity with Umbraco APIs, content models, and package integration
  

• Microsoft .NET & C#: ASP.NET Core / .NET Framework, C#, Razor, Visual Studio; strong LINQ skills
  

• Database: Microsoft SQL Server, T-SQL, stored procedures, query optimization
  

• APIs & Security: building/consuming RESTful APIs; OAuth/JWT/IdentityServer for auth
  

• Source Control & Delivery: Git (Beanstalk/SmartGit or equivalent), CI/CD (Azure DevOps, GitHub Actions), IIS config & URL rewrite
  

• Engineering Foundations: MVC architecture; design patterns (DI, Repository, SOLID); performance optimization, caching, and security best practices
  

• Collaboration & Delivery: clear communication, strong debugging/problem-solving, ability to translate business requirements into robust technical solutions; Agile/Scrum experience
  

Preferred

• Deploying Umbraco on Azure (App Services, SQL, Blob Storage)
  

• Front-end familiarity (JavaScript/React/Vue) for smoother collaboration
  

• Experience with headless CMS (Umbraco Heartcore)
  

• SEO and accessibility best practices
  

Benefits

• Professional growth opportunities with access to training and certifications
  

• Collaborative and innovative team culture with direct impact on projects