What is global systems engineering? Headquartered in Alexandria, Virginia, Global Systems Engineering (GSE) is a Small Business Administration HUBZone Certified Small Business that provides contracting services to the U.S. government, including the Departments of Defense and Homeland Security and the Environmental Protection Agency.How do i contact gss? GSS World Headquarters. Global Steering Systems, LLC. 156 Park Rd. Watertown, CT, 06795, USA. T: (860) 945-5400. F: (860)-945-5405. E: [email protected]. How do i contact global steering systems? Global Steering Systems, LLC. 156 Park Rd. Watertown, CT, 06795, USA. T: (860) 945-5400. F: (860)-945-5405.What is the global systems engineering science engagement team? The Global Systems Engineering Science Engagement Team and Warfighter Integration Team has successfully organized, planned, and facilitated a set of activities on behalf of its clients in the region.