Demo

Windows Systems Administrator

TDI (Tetrad Digital Integrity)
Arlington, VA Full Time
POSTED ON 7/31/2026
AVAILABLE BEFORE 1/26/2027
Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age.

TDI 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. Apply today to become part of the Leidos team that is assisting CESO as they migrate to a high security cloud environment by providing network and communication services, monitoring services, and system administration.

This position is onsite 5 days/week in Arlington, VA and requires an active TS/SCI clearance. 2nd Shift hours are Monday-Friday, 12pm-8pm.

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

QUALIFICATIONS:

  • Bachelor's degree and 4 years of overall related experience with a Windows servers environment (e.g. 2008r2 and 2012r2). Additional experience, education and training may be considered in lieu of degree
  • An active TS/SCI security clearance is required for this position.
  • Currently possess DoD 8750 certification at least IAT level II, e.g Security ce.
  • Candidate may be asked to obtain CI Poly in future
  • Experience with configuration, troubleshooting and maintaining VMware environments
  • Experience with Remote Desktop Services
  • Experience with PowerShell 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

PREFERRED QUALIFICATIONS:

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

Salary.com Estimation for Windows Systems Administrator in Arlington, VA
$102,170 to $128,334
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Job openings at TDI (Tetrad Digital Integrity)

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