Job Description Job Description ECS is seeking a Change Management Specialist - Journeyman to support the Army National Guard's critical IT infrastructure and cybersecurity operations. The Army National Guard (ARNG) Enterprise Network Operations and Cybersecurity Support (ENOCS) program delivers comprehensive enterprise IT infrastructure, WAN, cybersecurity, and associated services to the ARNG and its mission partners. The program supports more than 120,000 users and 141,000 endpoints across app