Demo

Senior Systems Administrator

Information Systems Solutions, Inc.
Fort Huachuca, AZ Full Time
POSTED ON 7/30/2026
AVAILABLE BEFORE 8/28/2026
Description

The Senior Systems Administrator supports the U.S. Army Information Systems Engineering Command (USAISEC), Communications Security Directorate (CSD), by providing comprehensive enterprise-level system, network, and workstation administration services across classified and unclassified environments. This role ensures the availability, security, continuity, and performance of all CSD-managed IT systems, user endpoints, network infrastructure, and supporting technologies.

This role is 100% onsite.

Specific duties include but are not limited to the following:

  • Administer, update, and maintain physical and virtual Windows, Linux, UNIX, and Active Directory servers.
  • Install, configure, and sustain system and application software, patches, and updates.
  • Monitor system performance and resolve operational issues.
  • Manage support tickets with vendors and Government partners and coordinate warranty actions.
  • Provide daily end-user technical support for workstations, peripherals, and communication devices.
  • Deploy and maintain workstations and associated hardware.
  • Create and manage user accounts across classified and unclassified networks.
  • Troubleshoot hardware, software, and connectivity issues.
  • Deliver user training on core operating systems and software tools.
  • Issue outage notifications for planned and unplanned service events.
  • Serve as Key Management Infrastructure (KMI) Client Platform Administrator.
  • Configure and maintain LAN/WAN devices including routers, switches, encryptors, and firewalls.
  • Monitor network uptime, traffic, and performance.
  • Install, test, and maintain copper and fiber cabling, resolving physical and logical network issues.
  • Document cabling, port assignments, and network configurations.
  • Enforce cybersecurity policies in alignment with Army, DoD, and RMF requirements.
  • Manage domains, permissions, privileged accounts, and access controls.
  • Support RMF and ATO processes through system documentation and compliance artifacts.
  • Run vulnerability scans, validate security controls, and support continuous monitoring.
  • Respond to security incidents, malware events, and classified spillage.
  • Isolate affected systems, preserve evidence, and support remediation activities.
  • Execute and verify daily system backups.
  • Transport classified backup media to off-site secure facilities as required.
  • Maintain and test contingency and disaster recovery plans.
  • Prepare for outages, hardware failures, and service disruptions.
  • Support long-term IT planning and lifecycle replacement strategies.
  • Evaluate and recommend emerging technologies.
  • Participate in technical boards, working groups, and governance activities.
  • Prepare and deliver technical briefings and analysis.
  • Support system testing, including scenario-based and configuration-based evaluations.
  • Maintain system documentation, SOPs, and troubleshooting guides.
  • Ensure documentation supports rapid onboarding of new personnel.
  • Improve tools, processes, and procedures as directed by leadership.

Why Work For ISS?

At ISS we pride ourselves on providing an employee-focused and family first environment. Being a small business, we take the time to get to know our employees and have a vested interest in helping them achieve their career goals. We work to schedule regular social gatherings within the company to foster camaraderie. ISS values their employees by providing a comprehensive benefits package that includes a fully vested 401(k) matching program, coverage of family medical deductibles, spot bonuses, and educational assistance to further your career.

Requirements

Clearance Level

  • Top-Secret Clearance

Certifications

Must meet DoD 8140 Cyber Workforce Qualification Program requirements for System Administrator (DCWF 451), Intermediate level. One of the following:

  • CompTIA Cloud
  • CompTIA Security
  • GIAC Global Industrial Cyber Security Professional (GICSP)
  • GIAC Security Essentials Certification (GSEC)
  • Systems Security Certified Practitioner (SSCP)

Required Skills

  • Minimum 10 years of experience
  • At least 2 Certifications within the following disciplines: Systems and network administration, Operating systems, Server Virtualization, Videoconferencing, Fiber optic cabling, Audio/visual systems, Network and systems management and control, Media access/digital interfaces, Voice over Internet Protocol (VoIP), and/or System and/or network protocols

Salary.com Estimation for Senior Systems Administrator in Fort Huachuca, AZ
$110,036 to $135,183
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Systems Administrator?

Sign up to receive alerts about other jobs on the Senior Systems Administrator career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$104,896 - $133,785
Income Estimation: 
$128,195 - $161,806
Income Estimation: 
$149,354 - $186,884
Income Estimation: 
$99,619 - $133,787
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Information Systems Solutions, Inc.

  • Information Systems Solutions, Inc. San Diego, CA
  • Description Information Systems Solutions (ISS) is seeking a Network Engineer, Systems IV to support the Naval Information Warfare Center Pacific (NIWC Pac... more
  • 1 Day Ago

  • Information Systems Solutions, Inc. Sierra Vista, AZ
  • This position provides full-stack application development and database administration support for Communication Security Directorate (CSD) enterprise syste... more
  • 2 Days Ago

  • Information Systems Solutions, Inc. San Diego, CA
  • Description Information Systems Solutions (ISS) is seeking a Telecommunications/Network Infrastructure Engineer with strong expertise in physical network i... more
  • 3 Days Ago

  • Information Systems Solutions, Inc. Fort Rucker, AL
  • Description Information Systems Solutions (ISS) is looking for a Word Processor supporting Fort Rucker. AL. Specific duties include, but are not limited to... more
  • 4 Days Ago


Not the job you're looking for? Here are some other Senior Systems Administrator jobs in the Fort Huachuca, AZ area that may be a better fit.

  • Peraton Fort Huachuca, AZ
  • About Peraton Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest r... more
  • 1 Day Ago

  • University of Arizona, Maricopa County Cooperative Extension Tucson, AZ
  • University Information Technology Services (UITS) is the University of Arizona’s central technology organization. UITS delivers enterprise and specialized ... more
  • 8 Days Ago

AI Assistant is available now!

Feel free to start your new journey!