Experience with ACAS, Azure, DHCP, DNS, HBSS, Hyper-V, Microsoft 365, MECM, SharePoint, SMTP, and Active Directory, as well as an understanding of help desk ticketing tools including Microsoft System Center and ServiceNow. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.