Contract .Net Developer

Remote (Occasional Travel to Letchworth Office)
Contract
Up to £450 per day (Inside IR35)

Skills: .NET Developer, C#, .NET, .NET Framework, ASP.NET, Azure DevOps, CI/CD, Application Upgrade, Software Modernisation, Oracle, PL/SQL, Oracle APEX, Azure, C# Developer, Software Developer, Inside IR35

Contract .NET Developer
Remote
3 Month Contract + Possible 3 Month Extension
Start Date: Mid-January 2027
Up to £450 p/d Inside IR35

Are you a .NET Developer who enjoys taking an established application estate and bringing it right up to date? This Contract .NET Developer role is a fully remote, 3 month engagement with a well-established UK retail business, upgrading its .NET applications to the most recent framework versions. The role starts in mid-January.

You’ll join the in-house development team that looks after the applications behind the business’s UK retail operations. It’s a focused, hands-on upgrade project with a clear goal, and there’s the possibility of a further 3 month extension.

What You’ll Be Doing

  • Upgrading existing .NET applications to the most recent supported versions of the framework
  • Assessing the current codebase, dependencies and third-party packages, and resolving breaking changes along the way
  • Refactoring and testing code so upgraded applications behave exactly as expected in live service
  • Working in Azure DevOps for source control, builds and release pipelines
  • Agreeing implementation, backup and roll-back plans with the development and test managers for each change
  • Documenting changes clearly so the in-house team can support the upgraded applications going forward

What You’ll Bring

  • Strong, recent commercial experience as a .NET Developer using C#
  • Hands-on experience of upgrading .NET applications between framework versions, including resolving breaking changes
  • Experience with Azure DevOps or similar source control and CI/CD tooling
  • A track record of delivering upgrade or modernisation work to a fixed timescale on contract
  • Experience of supporting applications in a live production environment

Desirable: Oracle SQL and PL/SQL, Oracle APEX, Azure, retail sector experience

Apply today with your CV for this Contract .NET Developer role and we’ll be in touch.

This role may suit candidates who have held roles including: C# Developer, .NET Software Engineer, Software Developer, Back End Developer, .NET Engineer, Application Developer

Apply Now