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System Administrator Specialist - Principal Security Clearance

Job in Fort Huachuca, Cochise County, Arizona, 85670, USA
Listing for: Agile Defense, Inc.
Full Time position
Listed on 2026-01-21
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, IT Support, Systems Engineer
Job Description & How to Apply Below
Position: System Administrator Specialist - Principal with Security Clearance
Location: Fort Huachuca

Requisition #: 1377

Job Title:

System Administrator Specialist - Principal

Location:

Fort Huachuca
Clearance Level: Top Secret SCI
Required Certification(s): CISSP or RHCSA SUMMARY Manages the daily activities of configuration and operation of the organization's IT systems and applications. Assists in the installation, maintenance, and general support of IT systems. Identifies and resolves problems associated with operating systems. Analyzes and resolves problems associated with server hardware/software and applications software. Detects, diagnoses, and reports related problems on both server, desktop, and mobile IT systems.

Assists users with questions or issues related to accessing and using IT systems. Installs new software releases and system upgrades, evaluates and installs patches, and resolves software related problems. Performs system backup and recovery procedures. Maintains data files and monitors system configuration to ensure data integrity. Performs system capacity analysis and planning, and optimizes system operation and resource utilization. Develops and implements policies and procedures to ensure that systems support the organization's business requirements and meet the needs of end users.

Defines system requirements based on user/client needs, cost, scalability, and required integration with existing applications, systems, or platforms. JOB DUTIES AND RESPONSIBILITIES Perform the administration of the information systems and applications used to establish, distribute and protect, the unclassified, (NIPRNet, DREN, CFBLNet, Office of Secretary of Defense (OSD) Waivered Commercial Internet Service (CISP)), DoD Collateral Classified and Releasable (REL) Mission Partner network domains and communities of interest, (SIPRNet, SDREN, North American Treaty Organization (NATO), Five Eyes Alliance (FVEY)) data and VoIP services to the respective test lab, servers, and end-point workstations.

Contractor shall perform system administration for Windows and Linux operating systems; ESXi: VMware and MS Hypervisor virtualization;
Active Directory, Domain Name Service (DNS), web, Endpoint Security Solutions (ESS), Assured Compliance Assessment Solution (ACAS), database, email, collaborative tools, associated approved applications, test tools and services. The Contractor shall conduct System Administration (SA) for both physical and virtual servers, zero clients, thin clients, and physical end-point workstations. Perform system administration of the information systems that establish the JITC Fort Huachuca, AZ instance of the Joint Worldwide Intelligence Communication System (JWICS).

Contractor shall perform system administration of the systems and applications applied to this enclave and encompassed in Task 6.1 and with respect to the distinctive guidance established within the JWICS Security Classification Guide (SCG), respective Directives and Issuances from DISA, the Director National Intelligence (DNI) and the Defense intelligence Agency (DIA). Perform; routine audits of systems and software, system backup, archive and restore procedures, installation and configuration of new hardware and software, and the application of operating system updates, patches, and configuration changes, as directed by the U.S. DoD U.S. Cyber Command (US CYBERCOM) Information Assurance Vulnerability Management (IAVM) Program, Information Assurance Vulnerability Alerts (IAVA), Security Technical Implementation Guide (STIG) / Security Requirements Guide (SRG), Bulletins, and Technical Advisory (TA) issuances.

Contractor will initiate respective system STIG checklists periodically as prescribed within the Authority to Operate (ATO) or as directed by the JITC Command ISSM. The Contractor shall accomplish JITC Property accountability as part of the daily routine and may be appointed as a JITC
Property Book Sub-hand receipt holder that will encompass the conduct of monthly 10% and annual 100% inventories.
Perform the sustainment and configuration of the information system that each respective application resides; ACAS and ESS/ePolicy Orchestrator (ePO) and perform the configuration and application updates; aid with application deployment and assistance to Endpoint SA groups and Cybersecurity Team.
Use the designated IT Service Management system for all system sustainment and change actions that require approval by JITC Cybersecurity. The few exceptions are declared in the DISA RME issued ISSM Checklist. Most change actions will require Cybersecurity approval. Approved changes will be documented in an update to the Standing Operating Procedures (SOP) and the Cybersecurity Architecture Descriptions (CAD) documents and any Network Topology diagrams.

The Contractor shall request access the to the DISA Direct Store Front (DDSF) to then request the Authorized Requesting Official (ARO) role. This role will establish the ability to process Telecommunications Service Requests (TSR) to facilitate changes to any DODIN Services connected to the JITC…
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