An iTest developer specializes in using the iTest tool for automated testing in software development. Their responsibilities include creating, executing, and managing test cases, scripts, and scenarios to ensure the quality and integrity of software applications. They are also tasked with identifying and documenting software defects and interfacing with other team members to resolve these issues. Furthermore, they perform regression testing, system testing, and integration testing. They need to understand the software development lifecycle and quality assurance methodologies. Their work greatly contributes to enhancing the overall software product by identifying and rectifying errors before deployment.