A DemandTools developer specializes in using the DemandTools software suite, a leading data quality and data cleansing package integrated with Salesforce. Their duties include managing, cleansing, and manipulating large data sets within Salesforce. They are responsible for deduplication of data, standardization, verification, and import or export of data. They also troubleshoot issues related to data quality, develop strategies for data validation, and ensure compliance with data governance standards. In addition, they may provide training and support to other users of DemandTools. Their goal is to improve overall data quality, enabling better decision-making and optimized business processes.