As an IVR tester, your job is to evaluate a device that uses interactive voice response systems. In this role, you may evaluate the performance of the device after each command, test its ability to understand various forms of communication, and help determine whether or not the automation systems of the device meet the expected standards. IVR testers often perform repetitive and random tests, help customize software to the needs of specific industries, and evaluate peripheral systems like audio response units. Most IVR testers work for companies that create and sell IVR systems, rather than working for companies that use these systems.