Systems Administrator

KBR; Lexington Park (MD); On-site; USD 95,000 - 140,000; Full time

Job summary

KBR, Inc is seeking a Systems Administrator in Lexington Park, Maryland. This role involves maintaining classified network systems, working hands-on with installations and troubleshooting in a DoD environment. Candidates must have a BS/BA degree, an active Secret Clearance, and a minimum of 5 years of relevant experience.

The position requires travel of 25-40% and offers a salary between $95,000 - $140,000 based on skills and experience.

Qualifications

• 5 years of experience in a relevant role.
• Must hold an active/current Secret Clearance.
• IAT Level II certification or higher (e.g., CompTIA Security+ CE).

Responsibilities

• Administer and maintain classified LAN/WAN networked systems.
• Monitor system health and troubleshoot connectivity issues.
• Travel CONUS and OCONUS for system deployments.

Skills

LAN/WAN network administration

Windows system administration

Linux system administration

Cybersecurity compliance

Network troubleshooting

Education

BS/BA from an accredited US institution

Tools

Cisco Networking Equipment

Microsoft Visio

Job description

## Systems AdministratorApplylocations: Lexington Park, Marylandtime type: Full timeposted on: Posted Todayjob requisition id: R2125498**Title:**Systems AdministratorKBR’s Mission Engineering Division delivers complex technical solutions and expert support to the U.S. Department of Defense, specializing in modeling and simulation, cyber transformation, air vehicle mission integration, and lifecycle support. As a trusted partner with a proven history in mission technology, KBR collaborates closely with clients to develop innovative and effective solutions. With a strong ethical framework, KBR prioritizes data security, privacy, and responsible information management to ensure mission success.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**Basic Qualifications*** **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**Travel:** 25% to 40% (CONUS and OCONUS)**Work Setting:** On Site**Compensation:** $95,000-$140,000. The salary range posted is based on the national average. The offered rate will be based on the selected candidate’s location, knowledge, skills, abilities, and/or experience, contract affordability, and in consideration of internal parity. #LI-KW1