Leidos is seeking an Exchange System Administrator to support a large enterprise IT contract for the DOD, ISEO. This role requires an individual with subject matter expertise administering Exchange and email retention systems within a physical and virtual server environment. Duties include examining incidents and problems and suggesting and implementing appropriate corrective action to initiate a repair or return to service. These include maintaining systems for email journaling, archiving, and eDiscovery on local and cloud platforms. This role analyzes recurring problems and initiates solutions for preventing reoccurrence and analyzes existing infrastructure for tuning/performance enhancements. The individual will provide systems and software operations and maintenance support in a large, multi-enclave enterprise environment. This individual will work in a team environment to ensure mission needs are met and ensure functionality of capabilities of customers. Individuals in this role may be required to perform technical software configuration, rebooting, and other remedial actions on servers.