We are looking for a Backend Developer to take ownership of the backend architecture, APIs, and core services that power both our existing web platforms and a new, modern, real-time operational system.
This is a hands-on role focused on developing scalable backend solutions, maintaining and enhancing our existing ASP.NET applications, and building cloud-based services using ASP.NET Core and Microsoft Azure. You will work closely with our developers to deliver modern, API-driven applications while helping to modernise our technology stack and improve the performance, security, and reliability of our systems.
You can find out more about us here: https://nationalgas.org.uk/
WHAT YOU’LL DO
- Maintain, enhance, and support existing ASP.NET-based websites hosted on IIS
- Build and extend backend services and REST APIs using ASP.NET Core / .NET
- Implement real-time features using SignalR.
- Support and integrate WebRTC audio-only calling functionality.
- Design, optimise, and maintain SQL Server and MariaDB databases.
- Build features involving mapping, GPS, geolocation, and geofencing.
- Collaborate with product, engineering, and DevOps teams on system architecture.
- Write clean, testable, and maintainable code across the full stack.
- Contribute to performance, scalability, and security improvements.
- Participate in code reviews, technical planning, and system design discussions
REQUIRED SKILLS AND EXPERTISE
- Strong experience with ASP.NET Core / .NET
- Experience maintaining or building ASP.NET websites
- Strong background building RESTful APIs
- Solid knowledge of SQL Server or MariaDB
- Experience with Entity Framework Core and/or Dapper
- Understanding of async programming, concurrency, and performance
- Experience implementing authentication and authorisation (JWT, OAuth2)
DevOps & Cloud
- Experience with CI/CD pipelines (Azure DevOps, GitHub Actions)
- Comfortable using Docker for development and deployment
- Exposure to Microsoft Azure (App Services, SignalR Service, Storage)
- Familiarity with logging and monitoring tools (Application Insights, Serilog)
- Comfortable working with IIS and Windows-based hosting environments
WHAT WE OFFER
- Ownership of both existing platforms and new system builds
- Opportunity to modernise and shape our long-term tech stack
- Engineering-led environment with real technical ownership
- Clear career progression and skills development
Pay: £40,000.00 per year
Benefits:
- Company pension
Work Location: In person
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