Mid-Level Software Developer

Company: Oscar Associates Limited
Apply for the Mid-Level Software Developer
Location: Castleford
Job Description:

Apply now, read the job details by scrolling down Double check you have the necessary skills before sending an application.Mid-Level Developer -£40k-£50k (DOE)

Location: CastlefordWorking Arrangement: on-siteSalary: Competitive, depending on experienceJob Type: Permanent

The Opportunity

We are recruiting for an exciting opportunity for a Mid-Level IT Systems Developer to join a small, collaborative IT team within an established organisation.

This is a great role for a developer who has moved beyond junior level and is looking for the opportunity to take ownership of defined development work, contribute to important business systems, and play an active role in improving and modernising existing technology.

The environment offers plenty of scope to broaden your technical knowledge, work across a range of systems and technologies, and contribute to the future development of the organisation’s IT function.

Technical Requirements

You will ideally have strong commercial development experience with:

  • C# and .NET Framework
  • WinForms development, including maintaining and enhancing legacy applications
  • Blazor
  • SQL Server, including database design and performance optimisation
  • Experience integrating systems and managing data across multiple platforms
  • Strong understanding of software development principles, testing and version control

Experience with legacy technologies or applications is also valuable, particularly where you have worked with technologies such as VB.NET or Delphi. xwwtmva

Desirable Experience

  • Experience modernising legacy systems and moving towards more maintainable architectures
  • Experience within manufacturing, logistics or another operational environment
  • Exposure to ERP systems
  • Experience integrating multiple business systems and managing data flows between them
  • Experience with DevExpress or other third-party development components
  • Experience with VBA
  • Exposure to modern web-based .NET technologies such as ASP.NET Core

If you’re an experienced .NET developer looking for a role where you can work across a varied range of systems, take ownership of your work and continue developing your technical career, we’d be ke

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Posted: September 22nd, 2026