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PGTEK

Windows Systems Administrator - TS/SCI with CI Poly

PGTEK, Chicago, Illinois, United States

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Windows Systems Administrator Location:

McLean, VA (100% Onsite) Clearance Required:

Active TS/SCI with CI Polygraph

Summary We are seeking an experienced and skilled

Windows Systems Administrator

to join our IT infrastructure team supporting a mission-critical federal environment. In this role, you will be responsible for the design, implementation, maintenance, and support of Windows-based systems, networks, and applications. This is an excellent opportunity for a detail-oriented professional who is passionate about system reliability, security, and delivering high-quality technical support in a classified environment.

Key Responsibilities

Design, implement, maintain, and support Windows-based server and desktop environments

Administer and support Active Directory, Group Policy, DNS, and related core services

Deploy and manage Windows systems using enterprise deployment tools (e.g., SCCM, MDT)

Monitor system performance, troubleshoot issues, and optimize system resources

Provide technical support to end users via phone, email, and in-person support

Administer and support enterprise email systems, including Microsoft Exchange and Outlook

Perform backup, recovery, and disaster recovery operations

Develop, maintain, and update system administration documentation and procedures

Collaborate with other IT teams to ensure successful integration of new technologies

Apply operating system updates, security patches, and best practices

Travel up to 20% as required for on-site installations, maintenance, and troubleshooting at customer sites or data centers

Qualifications

Minimum of

3+ years

of experience as a Windows Systems Administrator or in a similar role

Strong knowledge of Windows Server and Windows Desktop operating systems

Hands-on experience with Active Directory, Group Policy, and DNS

Experience with Windows deployment and configuration tools (SCCM, MDT)

Understanding of backup and disaster recovery concepts and procedures

Strong troubleshooting and problem-solving skills

Excellent verbal and written communication skills

Ability to work independently and as part of a team in a secure, fast-paced environment

Certifications Required

Active

TS/SCI clearance with CI Polygraph

(must be a current active clearance)

Preferred / Beneficial Skills

Experience installing, configuring, and supporting Linux (Server and/or Workstation)

Scripting and automation experience with PowerShell, Python, and/or Bash

Microsoft certifications such as

MCSA, MCSE , or equivalent industry certifications

Knowledge of security best practices, including firewalls, antivirus, and endpoint protection

Experience with virtualization technologies (VMware, Hyper‑V, KVM)

SQL Server administration experience

Familiarity with IT service management tools and frameworks (e.g., ServiceNow)

Salary: 130-160K

Our comprehensive benefits package for full-time salaried employees is effective immediately upon the start date. Benefits include comprehensive PPO medical coverage with access to a Health Savings Account (HSA) option, a vision plan, and dental insurance with the base dental plan option paid for by PGTEK. Life Insurance, Short and Long-Term disability, and Critical Illness insurance have premiums covered. Additionally, PGTEK offers a matching 401(k) plan and a discount on pet insurance through ASPCA Pet Insurance. An Employee Assistance Program is available at no cost to all employees. PGTEK offers a generous amount of PTO and Holidays, and an Education Assistance Program is available after 12 months of employment.

ABOUT PGTEK

PGTEK is a true consulting organization dedicated to helping clients achieve their business and technology objectives utilizing our decades of experience and business relationships. PGTEK invests in the educational advancements of our staff by providing the necessary resources to complete Professional and Business Certifications. Our company is our people, and we treat them like family.

EOE, including disability/veterans

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