A MATLAB developer is an expert at using the MATLAB software developed by a company called MathWorks. As a MATLAB developer, your duties vary depending on the needs of your employer or clients. MATLAB is a matrix laboratory that allows you to manipulate matrices, perform numerical analysis, apply algorithms, and create user interfaces. Your responsibilities may include using your programming and coding skills to design a MATLAB application that can interface with programs written in other languages such as C++ or Python. You also perform maintenance and provide support for people who use your applications.