We are seeking a hands-on Software Developer to join a small, established in-house development team.

The successful candidate will work closely with a senior developer to maintain, support and enhance a long-established business-critical application built primarily using C#, VB.NET and Microsoft SQL Server.

This role is particularly suited to a developer who enjoys understanding existing systems, troubleshooting complex problems and improving applications incrementally rather than working exclusively on greenfield development.

A significant part of the position involves working within an established codebase, resolving defects, improving system reliability and developing new functionality while maintaining compatibility with existing business processes.

Key Responsibilities

  • Maintain and support an existing Windows-based business application.
  • Diagnose, troubleshoot and resolve defects within C# and VB.NET applications.
  • Develop and enhance functionality within the existing application architecture.
  • Write, modify and optimise Microsoft SQL Server queries.
  • Develop and maintain stored procedures, views and other database objects.
  • Investigate user-reported system issues and provide effective resolutions.
  • Assist with testing and deployment of application updates.
  • Refactor and improve legacy code where appropriate while protecting system stability.
  • Identify opportunities to improve application reliability, performance and maintainability.
  • Document technical changes and contribute to internal knowledge sharing.
  • Work closely with the senior developer to understand business processes and translate requirements into technical solutions.
  • Participate in discussions relating to future system improvements and potential modernisation initiatives.
  • Support ongoing maintenance and development of the existing codebase.

Required Skills and Experience

Candidates should have:

  • 3+ years' software development experience preferred.
  • Solid development experience using C# (.NET Framework / .NET).
  • Working knowledge of VB.NET, including the ability to read, understand and maintain existing VB.NET code.
  • Strong experience working with Microsoft SQL Server.
  • Good understanding of:
    • Stored procedures
    • SQL views
    • Joins
    • Query optimisation
    • Transactions
    • Data integrity
  • Experience maintaining, supporting or extending existing or legacy applications.
  • Experience troubleshooting and debugging complex software issues.
  • Familiarity with source control systems such as Git or similar.

Candidates with particularly strong C# and SQL Server skills who are comfortable learning and maintaining existing VB.NET code are also encouraged to apply.

Advantageous Experience

The following would be beneficial:

  • Experience developing or supporting Windows desktop applications, including WinForms or WPF.
  • Experience within manufacturing, logistics, ERP or operational business environments.
  • Exposure to reporting tools and reporting solutions.
  • Experience with application modernisation or migration projects.
  • Basic understanding of networking, application deployment and related infrastructure processes.

Personal Attributes

We are looking for someone who is:

  • Patient and methodical when working with established or older codebases.
  • A strong analytical thinker and practical problem solver.
  • Comfortable investigating problems in systems they did not originally build.
  • Able to communicate effectively with both technical and non-technical stakeholders.
  • Curious and willing to learn an established business application in depth.
  • Able to work independently while collaborating closely with a senior developer.
  • Responsible and dependable, with a strong sense of ownership.
  • Comfortable following tasks through from investigation to implementation and resolution.
  • Focused on maintaining system stability while introducing improvements.

What You Will Be Working On

The application supports important day-to-day business operations and has evolved over a number of years.

The role therefore requires someone who understands that successful development is not simply about writing new code. A major part of the position involves understanding how the existing system and business processes work, protecting business continuity and introducing improvements in a controlled and sustainable manner.

Typical areas of work will include:

  • Bug fixing and application support
  • New feature development
  • Database enhancements
  • SQL optimisation
  • Performance improvements
  • User-requested system changes
  • Code maintenance and refactoring
  • Application stability improvements
  • Ongoing support of the existing legacy codebase
  • Participation in longer-term modernisation initiatives

What Success Looks Like

Within the first 6–12 months, the successful candidate should be able to:

  • Navigate and work confidently within the existing codebase.
  • Understand the key business processes supported by the application.
  • Resolve most day-to-day application support issues independently.
  • Implement new functionality with limited supervision.
  • Safely make changes without negatively affecting existing business processes.
  • Contribute practical ideas for improving system stability, performance and maintainability.
  • Become a trusted technical partner to the senior developer and wider business.

Ideal Candidate

This opportunity will suit a mid-level developer who enjoys practical software development and problem-solving.

It is particularly well suited to someone who is comfortable working with established systems and understands the value of maintaining and progressively improving software that plays a critical role in daily business operations.

If you have strong C#, SQL Server and debugging skills, and are comfortable working with or learning VB.NET, we would like to hear from you.

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