Systems Administrator, Senior | Top Secret clearance w/SCI eligibility
Quick Summary
Provide Tier II systems administration and operational support for a secure enterprise environment. Monitor, troubleshoot, and resolve system availability, performance, security,
AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a motivated, customer-focused Senior Systems Administrator to provide Tier II operational support for a high-visibility customer mission.
In this full-time, onsite first-shift role, you will help maintain the availability, performance, security, and reliability of a complex enterprise IT environment within an Enterprise Operations Center (EOC) in Chantilly, VA.*
*This role is anticipated to relocate to Arlington, VA, at a future date.
Responsibilities
~1 min readAs a Senior Systems Administrator with AMERICAN SYSTEMS, you will:
- →Provide Tier II systems administration and operational support for a secure enterprise environment.
- →Monitor, troubleshoot, and resolve system availability, performance, security, and configuration issues.
- →Administer and support key technologies, including:
- →VMware vCenter, Horizon View, and Site Recovery Manager
- →SolarWinds, Cisco Catalyst Center (DNAC), and GEMOne
- →HP SANs and enterprise storage platforms
- →MS Certificate Services, PKI, Active Directory, Group Policy, DNS, and DHCP
- →MS Windows Server and desktop operating systems
- →Backup, recovery, endpoint protection, and systems-management tools
- →Maintain the health, performance, and availability of multi-user systems.
- →Partner with network, cybersecurity, engineering, service desk, and customer teams to resolve operational issues.
- →Analyze requirements and support the integration, configuration, and sustainment of supported platforms.
- →Participate in ITIL service management, including incident, problem, and change management activities.
- →Prepare, document, and execute approved change requests.
- →Develop and maintain Standard Operating Procedures (SOPs), knowledge articles, and technical documentation.
- →Support project and engineering teams with testing, packaging, release preparation, and production integration.
- →Apply applicable security requirements, hardening guidance, and operational best practices.
- →Provide technical guidance to junior Systems Administrators and Systems Engineers.
- →Participate in shift turnover and document incidents, actions taken, and outstanding risks.
Requirements
~1 min read- Active Top Secret clearance with SCI eligibility.
- One of the following combinations of education and experience:
- Bachelor’s degree and 5+ years of systems support or administration experience
- Associate’s degree and 7+ years of relevant experience
- High school diploma and 11+ years of relevant experience
- Current DoD 8140 IAT Level II certification, such as Security+ CE.
- Ability to obtain a DoD 8140 computing-environment certification within 6 months of hire, such as MCSA, VCP, or equivalent.
- Experience supporting Microsoft Windows environments, including Windows Server 2008–2022, Windows 10/11, Exchange, Active Directory, DNS, Group Policy, PKI, workstation/server hardware, backup, antivirus, DHCP, and TCP/IP.
- Working knowledge of VMware and Cisco systems, including vSphere or Horizon View, Cisco networking devices, and TACLANE encryption devices
Location & Eligibility
About this job
- Pay per year
- $130,000 a year
- 21% above the $107,662 median for Systems Administrator jobs on Jobera (263 salaries).
- Posted
- Today
Listing Details
- Posted
- October 22, 2026
- First seen
- October 22, 2026
- Last seen
- October 22, 2026
Posting Health
- Days active
- 0
- Repost count
- 0
- Trust Level
- 67%
- Scored at
- October 22, 2026
Signal breakdown
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