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Windows System Administrator Security Clearance

Job in Arlington, Arlington County, Virginia, 22203, USA
Listing for: TEKsystems c/o Allegis Group
Full Time position
Listed on 2026-09-04
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, Systems Engineer, IT Support
Job Description & How to Apply Below
Position: Windows System Administrator with Security Clearance
TEKsystems is seeking a Windows Systems Administrator to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. This position is based in Arlington, VA and is 100% on-site. 2nd Shift hours are Monday-Friday, 12pm-8pm.

Primary Responsibilities

• Create, maintain, and implement detailed documentation for standard systems operating procedures to be used across the enterprise.

• Develop, implement, and monitor policies and standards for allocation related to the use of computing resources.

• Analyze available hardware and software from outside vendors and make recommendation for purchase and installation of cost-effective solutions.

• Review work performed by lower-level technical staff.

• Work both independently as well as in coordination with network administrators to maintain the smooth operation of a multi-user computer system.

Basic Qualifications:

• Experience with configuration, troubleshooting and maintaining VMware environments.

• Experience with Remote Desktop Services

• Experience with Power Shell scripting and experience in other languages like Python.

• Experience with application of security settings and other commercial best practices such as DISA STIGS.

• Experience with Security Content Automation Protocol (SCAP)

• Experience with Group Policy Management (GPO) and applying Local Security Policies

• Experience with Windows Task Scheduler

• Experience Managing Active Directory

• Experience with System (hardware) and application (software) installation and configuration.

• Application of security settings and other commercial best practices such as DISA STIGS. Additional

Skills & Qualifications

Preferred Qualifications

• Prior experienced with DISA and DISA’s support to mission partners

• TS/SCI w/CI Poly Preferred

• Integration of Network Management (NM) and Element Management (EM) systems with network performance, trouble ticketing, and security subsystems highly desired.

• Experience with support systems to include enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS).

• Candidates with a thorough knowledge of networking principles to included TCP/IP a plus.

• Experience with a ticketing system such as BMC Remedy.

• ITIL v3 Foundation certified

• Linux OS experience.

• Solaris OS experience.

• Experience working with virtual environments. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms.  If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
· This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret)
· Because an active or interim DoD clearance is required, U.S. Citizenship is required
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