A Visual Basic (VB) programmer maintains older codebases that heavily used the Visual Basic programming language. As a Visual Basic programmer, your job duties include integrating old code with new applications that use newer programming languages, troubleshooting issues that arise, updating and patching snippets of code, and ensuring the continued functionality of computer software applications that rely on a codebase written primarily in Visual Basic. As fewer companies use Visual Basic in software development, your responsibilities include learning and utilizing newer programming languages to supplement your skills and help your employer adapt to new technological standards.