The job duties of a Visual Basic developer (VB developer) include working to design or modify software, systems, and applications using Visual Basic and related programming languages and ecosystems. This includes VB.NET, Microsoft Access, and MySQL. In this career, your responsibilities involve writing, testing, and modifying code, and working to implement software or systems into existing systems. You may scale existing applications or software for your employer. You may work for an in-house tech or IT department, or you work for a software developer and provide services for clients.