An Excel VBA Developer works with the Microsoft event-driven macro programming language, Visual Basic for Applications. You create user-defined functions and automation processes by using code to build a script based on your company’s needs. Your duties include presetting the software with user preferences and performing routine analysis, including data mapping and updating the database. Other responsibilities include working with trading desk personnel to develop processes to enhance workflow efficiency. You handle any of the company’s ad hoc requests to generate data files. You also maintain existing scripts and processes.