C#/VB.NET Developer - Legacy Systems & SQL Server

Sydsen Group (Pty) Ltd; South Africa; On-site; ZAR 391,000 - 502,000; Full time

Job summary

Sydsen Group (Pty) Ltd in Germiston is seeking a hands-on Software Developer to join a small in-house development team. You will maintain and enhance an existing business-critical application environment built around C#, VB.NET and Microsoft SQL Server.

The role focuses on stabilising systems, debugging and extending features within an established architecture, collaborating with the Senior Developer and contributing to future modernisation initiatives.

Qualifications

• 3+ years of experience preferred.
• Maintenance of existing Windows-based applications.
• Strong debugging and troubleshooting ability.

Responsibilities

• Maintain and support existing Windows-based applications.
• Diagnose and resolve bugs in C# and VB.NET.
• Develop new functionality within an existing application architecture.
• Write and optimise SQL Server queries.
• Develop stored procedures, views and related database objects.
• Investigate and resolve user-reported system issues.
• Assist with testing and deployment.
• Refactor and improve legacy code.
• Maintain system stability and business continuity.
• Document technical changes.
• Work closely with the Senior Developer.
• Contribute to future system modernisation initiatives.

Skills

C#

VB.NET

SQL Server

Windows

Git

Tools

Git

Job description

Sydsen Group (Pty) Ltd in Germiston is seeking a hands-on Software Developer to join a small in-house development team. You will maintain and enhance an existing business-critical application environment built around C#, VB.NET and Microsoft SQL Server.

The role focuses on stabilising systems, debugging and extending features within an established architecture, collaborating with the Senior Developer and contributing to future modernisation initiatives.