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Mid Level Developer

Job in Leeds, West Yorkshire, ME17, England, UK
Listing for: Oscar
Full Time position
Listed on 2026-09-03
Job specializations:
  • Software Development
    .NET Developer, Backend Developer, SQL Developer
Salary/Wage Range or Industry Benchmark: 40000 - 50000 GBP Yearly GBP 40000.00 50000.00 YEAR
Job Description & How to Apply Below
Mid-Level Developer

Location:

Castleford - 3 days on-site Salary: 40,000 - 50,000 DOEThe Role We are working with an established organisation that is looking for a Mid-Level Developer to join a small, collaborative IT team.

This is a great opportunity for a developer who has progressed beyond junior level and is looking to take ownership of development work, contribute to key business systems and help modernise existing technology.

You'll work across a varied technical environment, developing and maintaining applications while also getting involved in improving systems, integrations and overall architecture. There's plenty of opportunity to broaden your technical skills and have a genuine impact on the organisation's technology roadmap.

The Technical Environment The ideal candidate will have strong commercial experience with:

C# and .NET Framework Win Forms , including maintaining and enhancing legacy applications

BlazorSQL Server, including database design and optimisation

System integration and managing data across multiple platforms

Software development principles, testing and version control

Experience working with legacy technologies such as  or Delphi would also be beneficial.

Desirable Experience Modernising legacy applications and moving towards more maintainable  Core or other modern .NET technologies

DevExpress or similar third-party development componentsVBAERP systems

Experience with in manufacturing, logistics or another operational environment

Integrating multiple business systems and managing data flows

This is a strong opportunity for a Mid-Level .NET Developer who wants a varied role, genuine ownership and the opportunity to work across both established and modern technologies within a growing IT function.

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

To understand more about what we do with your data please review our privacy policy in the privacy section of the Oscar website.
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