Senior .NET Engineer for Legacy Support and Modernization

Job Title: Senior .NET Engineer (Legacy Support and Modernization)

Location: Fully Remote (South Africa)

Setup: Part-Time role

We are hiring a part-time and fully remote Senior .NET Engineer to take ownership of our existing systems and help guide their evolution.

This role involves working across multiple .NET applications—some running on older frameworks—with a planned, gradual migration to modern .NET (.NET Core / .NET 6+). The environment also includes WordPress (PHP) websites that communicate with .NET back-end services, so experience or familiarity with WordPress/PHP is a strong advantage.

This role requires someone organized, reliable, and proactive—not just a strong developer, but a clear communicator who can take ownership, understand complex systems, and collaborate effectively across teams.

What You’ll Do:

• Maintain, support, and enhance multiple .NET applications (legacy and modern)
• Work confidently within existing and older codebases
• Plan and assist with the migration of legacy systems to .NET Core / .NET 6+
• Collaborate with teams working on WordPress/PHP frontends that integrate with .NET APIs
• Troubleshoot bugs, performance issues, and complex edge cases
• Communicate clearly and effectively with internal and external stakeholders
• Take ownership of system stability and continuous improvement

Requirements:

• 7+ years of hands-on experience with .NET (C#, ASP.NET, Web API, SQL Server)
• Proven experience working with legacy systems and large existing codebases
• Strong debugging, troubleshooting, and problem-solving skills
• Solid experience with APIs, Entity Framework, and LINQ
• Excellent written and verbal communication skills
• Proactive, ownership-driven mindset (mandatory)
• Ability to work independently and take full responsibility for deliverables
• Experience with WordPress and PHP is beneficial