Systems Administrator

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

Benefits offered by this job

401(k) plan with company match

Medical and dental insurance

Paid time off

Job summary

KBR Careers is seeking a Systems Administrator to join their CuXS program in Lexington Park, MD. This role involves hands-on administration and support for classified network systems.

Key responsibilities include maintaining Windows and Linux systems, ensuring cybersecurity compliance, and interacting with engineering and IT teams. Applicants must have a Bachelor's degree, 5 years of experience, and a current Secret Clearance.

Qualifications

• U.S. citizen with an active/current Secret Clearance.
• 5 years of experience in systems administration.
• IAT Level II or higher certification such as CompTIA Security+ CE.

Responsibilities

• Administer, configure, and maintain LAN/WAN systems.
• Perform day-to-day administration for Windows and Linux systems.
• Support cybersecurity by implementing STIGs.

Skills

Network administration

Windows systems administration

Linux systems administration

Cybersecurity compliance

Technical documentation

Education

BS/BA from an accredited U.S. institution

IAT Level II or higher certification

Tools

Microsoft Visio

Firewalls

Switches and routers

Job description

Title

Systems Administrator

KBR’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.
• Education and Years of Experience: BS/BA from an accredited U.S. 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. Salary based on location, knowledge, skills, abilities, and experience, contract affordability, and internal parity.

Additional Compensation

KBR may offer bonuses, commissions, or other forms of compensation to certain job titles or levels per internal policy or contractual designation. Additional compensation may include a sign‑on bonus, relocation benefits, short‑term incentives, long‑term incentives, or discretionary payments for exceptional performance.

KBR Benefits

KBR offers a selection of competitive lifestyle benefits, which could include 401(k) plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development.

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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