Systems Administrator (TS/SCI)

Job overview

The Systems Administrator (TS/SCI) role is onsite in Warrenton, VA, with annual compensation of $100,000–$140,000. The role supports Summit 7 Systems’ Cleared IT Support Team and work that protects the U.S. defense industrial base from cyber threats. This position helps keep multi-user networks, including WANs and standalone systems, operating reliably and securely. The administrator manages Windows infrastructure, system resources, security tasks, updates, vulnerabilities, installations, and user support while coordinating with network engineers and information systems security staff.

What you'll do

• Administer Windows and Active Directory services, DNS, DHCP, group policies, virtualization environments, Windows Update Services, and Microsoft Exchange. Oversee ACAS scanning and remediation, maintain HBSS services, install and troubleshoot workstations, servers, network devices, printers, and COTS/GOTS software, and support IAVM/STIG compliance with ISSOs. Maintain system documentation, accounts, backups, and performance
• respond to escalated requests and assist users. Local travel between customer locations in Northern Virginia is expected.

What we're looking for

Skills & competencies

systems administrator

ts/sci

ci polygraph

comptia security+

warrenton va

summit 7 systems

windows administration

active directory

network administration

acas

hbss

onsite

$100k–$140k/year

Work arrangement

• Weekend coverage required

Benefits & perks

• BCBS health benefits, Ameritas dental, VSP vision, 401(k) with company match, 10 vacation days, 7 sick days, and certification-plan bonuses and salary-increase potential.

Why this role

Requires Top Secret/SCI clearance with CI Polygraph and CompTIA Security+ certification. Associate or bachelor’s degree in computer science or a related field, or at least three years of IT-related experience. Benefits include health, dental and vision coverage, 401(k) match, vacation and sick time, and certification-plan bonuses and salary-increase potential.

About the employer

Summit 7 Systems is hiring for this role. Industry: Computer Systems Design Services. Sector: 54.