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# Mid-Level Software Developer

- **Company:** Oscar Associates (UK) Ltd
- **Location:** Castleford, UK
- **Experience:** Experienced
- **Salary:** £40,000.0 - £50,000.0
- **Contract:** Permanent contract
- **Skills:** ASP.NET, .NET Framework, Delphi (Programming Language), Business Systems, Database Design, Microsoft SQL Server, Visual Basic .NET (Programming Language), Performance Tuning, Software Engineering, Data Streaming, Systems Integration, Web Applications, Windows Forms, Devexpress, Blazor, Vba Programming Language, Software Version Control, Legacy Systems
- **Published:** August 14, 2026
- **Apply:** https://www.totaljobs.com/job/mid-level-software-developer/oscar-associates-uk-limited-job107841338

## About the Role

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.

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 keen to hear from you.

## Description

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.


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