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# Systems Administrator

- **Company:** KBR Inc
- **Location:** Lexington Park, MD, United States
- **Salary:** $95,000 - $140,000
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, CompTIA Security+, Cyber Security, Data Security, Linux, Internet Protocol Security (IP SEC), Internet Security, Virtual Private Networks (VPN), Network Security, Microsoft Visio, Network Configuration and Change Management, Network Architecture, Network Diagrams, Red Hat Enterprise Linux, Systems Integration, Wide Area Networks, Privacy Controls, Computer Networking Systems, Computer Network Operations, Enterprise Integration, Cisco
- **Published:** November 10, 2026
- **Apply:** https://www.careerbuilder.com/job-details/systems-administrator-md--d2542f58-05b7-418a-b33d-ee1faa6c9cb1

## About the Role

Systems Administration/Management, Systems Administration/Management, Simulation, Establish Priorities, United States Department of Defense (DoD), Information/Data Security (InfoSec), Technical Delivery, Technical Support, Privacy Controls, Internet Security, * Clearance & Citizenship: Must be a U.S. citizen with an active/current Secret Clearance.

 * Edu & Years of Exp: BS/BA from an accredited US institution & 5 years of experience
 * IAT Level II or higher certification (DoD 8570 / 8140 compliant), such as CompTIA Security+ CE, CySA+, GSEC, SSCP (IAT II), or higher-level certifications, including CEH, CASP+, or CISSP.

Preferred Qualifications

 * Familiarity with Webster Field and NAS Patuxent River RDT&E network infrastructure
 * Cisco Certifications: CCST Networking, CCST Cybersecurity, CCNA, or CCNP.
 * Proficiency with Microsoft Visio. Experience with wireless or microwave point-to-point networking. Experience with IPSEC VPN and L2TP. Familiarity with Linux - RHEL, SUNOS systems.
 * Current U.S. Passport

## Description

We're seeking a Systems Administrator to join our growing CuXS program to support secure test and lab environments. In this role, you'll serve as a hands-on systems administrator with a strong focus on networked environments, supporting system integration, testing, cybersecurity compliance, and day-to-day operations in a classified DoD setting. You'll work side by side with engineers and technical teams to support integrated systems and network operations in support of mission and test activities. The primary worksite for this role is St. Inigoes / Webster Field / Lexington Park, MD, with required CONUS and OCONUS travel (approximately 25-40%) in support of system installations, testing activities, and mission tasking.

Role & Responsibilities

 * Administer, configure, and maintain classified LAN/WAN networked systems and environments supporting lab and test operations
 * Serve as the primary administrator for network-centric system components, including switches, routers, firewalls, and connected server infrastructure
 * Perform day-to-day system administration for Windows and Linux systems operating within secure, segmented network environments
 * Support system and network integration for new hardware, software, test events, and lab upgrades
 * Apply and maintain operating system and network security configurations in accordance with DoD STIGs and cybersecurity requirements
 * Support cybersecurity and accreditation activities (IATT/ATO) by providing system and network configuration documentation, artifacts, and technical input
 * Monitor system and network health, troubleshoot connectivity and performance issues, and coordinate resolution to support mission execution
 * Create and maintain technical documentation, including system diagrams, network diagrams, configurations, and standard operating procedures
 * Work closely with engineers, IT staff, cybersecurity teams, and government users to support operational needs and scheduled test activities
 * Travel CONUS and OCONUS to support system deployments, site surveys, testing events, and operational mission requirements. Participate in system installs, patching cycles, maintenance windows, and test preparations as required