Ability to obtain and maintain Public Trust Suitability granted through the TSA - (To be eligible for Public Trust Security Clearance, one must be either a U.S. Citizen OR a U.S. Permanent Resident/Green Card holder who has resided in the U.S.A for the past 3 years.). Primary Responsibilities: Installation and maintenance of the software and hardware, to include but not limited to account management, user privileges, local group policy, local software testing, restoration operations, contingency planning, and local backups.