Gregory Mader


Open Source Integrators

Greg’s career spans more than 25 years and includes experience in business, operations, manufacturing, and leadership. He holds two master’s degrees: a master’s in geography from South Dakota State University, and a master’s in computer science from the University of Chicago.

Greg spent much of his career implementing enterprise technology suites for government and commercial organizations. Between 1995 and 2005, Greg worked for county government, consulting, and commercial organizations as a county enterprise system coordinator, database manager, and product and project manager. Prior to establishing Open Source Integrators, Greg spent six years as the manager of Esri Defense and Intelligence Services, where he directed consulting operations and managed a software development team of 65 staff members in four locations. In this role, Greg led the creation of the CJMTK Geospatial Appliance, a comprehensive system for enabling military analysis and visualization.