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Cybersecurity Engineer (Red Hat Enterprise Linux)
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.
Position Summary:
We are seeking a skilled, proactive Linux Systems Administrator with demonstrated expertise in Red Hat Enterprise Linux (RHEL), foundational networking knowledge and TS/SCI clearance. You will play a key role in maintaining system reliability, optimizing performance, and supporting the growth of our systems through testing, live demonstrations and training.

Roles and Responsibilities:

• Install, maintain, and upgrade data systems, ensuring uptime, security, and performance.
• Develop and maintain BASH scripts for system automation.
• Configure and troubleshoot core networking components (e.g., DNS, DHCP, firewalls, VPNs, routing).
• Assist in designing and implementing network segmentation, VLANs, and basic security policies.
• Maintain and develop system documentation, diagrams, and operational manuals.
• Collaborate with other IT and cybersecurity teams to ensure compliance with internal policies and external regulations.
• Support patching, updates, and package management.
• Collaborate with external partners to conduct integration, testing and live demonstrations of various applications.
• Provide expert recommendations on countermeasures, such as configuring commercial products, implementing hardware or software solutions, and adhering to security best practices.
• Deliver clear, concise briefings and comprehensive evaluation reports to customers, equipping them to enhance their network defenses.
• Work collaboratively to address complex security challenges while maintaining a proactive approach to threat mitigation.
• Manage multiple IT vendors to ensure completion of IT projects in a timely manner.
• Perform other duties as assigned.
• Ability to troubleshoot systems and network performance across layers.
• Strong organizational and communication skills.

Qualifications:

• Active TS/SCI clearance with SAP/SAR access eligibility.
• BS/BA degree in Cybersecurity, Computer Science, Information Technology or a similar degree.
• Minimum of 5 years of Information Technology (IT) experience.
• Proven experience with Red Hat Enterprise Linux 8/9.
• Understanding of Linux kernel, system, SELinux, and virtualization (KVM, Libvirt).
• Knowledge of TCP/IP, subnets, firewalls, and basic switch/router configurations.
• Familiarity with common networking tools: netstat, firewall, traceroute, tcpdump.

Preferred Qualifications:

• Red Hat Certified System Administrator (RHCSA) or Red Hat Certified Engineer (RHCE)
• CompTIA Network+ or equivalent

Location: Omaha, NE (onsite)
Belong, Connect and Grow at KBR
At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together.
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.

• Install, maintain, and upgrade data systems, ensuring uptime, security, and performance.
• Develop and maintain BASH scripts for system automation.
• Configure and troubleshoot core networking components (e.g., DNS, DHCP, firewalls, VPNs, routing).
• Assist in designing and implementing network segmentation, VLANs, and basic security policies.
• Maintain and develop system documentation, diagrams, and operational manuals.
• Collaborate with other IT and cybersecurity teams to ensure compliance with internal policies and external regulations.
• Support patching, updates, and package management.
• Collaborate with external partners to conduct integration, testing and live demonstrations of various applications.
• Provide expert recommendations on countermeasures, such as configuring commercial products, implementing hardware or software solutions, and adhering to security best practices.
• Deliver clear, concise briefings and comprehensive evaluation reports to customers, equipping them to enhance their network defenses.
• Work collaboratively to address complex security challenges while maintaining a proactive approach to threat mitigation.
• Manage multiple IT vendors to ensure completion of IT projects in a timely manner.
• Perform other duties as assigned.
• Ability to troubleshoot systems and network performance across layers.
• Strong organizational and communication skills