Junior Systems Administrator

Title:

Junior Systems Administrator At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

Program Summary KBR’s Missile, Aviation, and Ground Systems (MAGS) division delivers mission engineering solutions for critical U.S. Army programs, specializing in aviation and ground systems, integrated air and missile defense, and threat and target systems. As a trusted partner of the U.S. Department of War, MAGS provides innovative, technology-driven solutions to enhance national security. With a global presence and a strong ethical framework, KBR ensures secure, effective, and mission-ready capabilities worldwide.

Job Summary As a Junior Systems Administrator, you will serve as a frontline technical support resource for end users and an entry-level member of the systems administration team supporting classified and unclassified mission environments. This role focuses on service desk support, customer service, workstation and account administration, and routine system maintenance across Windows and Linux environments. The successful candidate will resolve user issues promptly and professionally while building hands-on experience in enterprise systems administration, cybersecurity compliance, and infrastructure operations under the guidance of senior administrators and engineers. Working closely with system administrators, infrastructure engineers, cybersecurity personnel, and end users, you will help ensure reliable, secure, and responsive IT services supporting mission execution.

Key Responsibilities

• Provide Tier 1 and Tier 2 service desk support for end users through tickets, phone, email, and walk-up requests, and escalate complex issues to senior staff as needed.
• Install, configure, image, and troubleshoot Windows and RHEL workstations, laptops, servers, and peripherals.
• Create, modify, and disable user accounts, groups, and permissions in Active Directory and related identity services.
• Support CAC/PKI authentication, password resets, account lockouts, and user access issues.
• Support new user onboarding and departing user offboarding, including equipment issuance, account provisioning, and access removal.
• Perform routine system maintenance including patching, software installation, and updates under the direction of senior administrators.
• Assist with implementing DISA STIG configurations, vulnerability remediation, and security controls supporting classified environments.
• Assist with rack installation, cabling, equipment moves, and physical infrastructure tasks.
• Document ticket resolutions, procedures, and knowledge base articles to improve support consistency.
• Participate in on-the-job training, mentorship, and professional development to build skills in systems administration, networking, and cybersecurity.

Basic Qualifications

• U.S. Citizenship required.
• Active Secret clearance required or ability to obtain.
• Experience providing service desk or end user technical support.
• Working knowledge of Windows or Linux operating systems and basic troubleshooting of hardware, software, and network connectivity issues.
• Basic understanding of Active Directory, user account management, and file and folder permissions.
• Ability to follow documented procedures and accurately document technical work.
• A positive attitude, strong customer service, communication, organizational, and problem-solving skills.
• Demonstrated willingness to learn new technologies and take on increasing technical responsibility.

Preferred Qualifications

• CompTIA, Microsoft, Linux, or other relevant industry certifications.
• DoD 8140 / 8570 IAT Level II certification (e.g., Security+ CE)
• Experience supporting Department of Defense IT environments.
• Experience with RHEL or other Linux distributions, including command line administration.
• Familiarity with Windows Server, Group Policy, and DNS/DHCP fundamentals.
• Experience with ServiceNow, Remedy, or comparable IT service management ticketing platforms.
• Experience with workstation imaging and deployment tools such as MECM/SCCM, WDS, or Kickstart.
• Familiarity with DISA STIGs, RMF, and basic vulnerability management concepts.
• Familiarity with PowerShell, Bash, or Python scripting.
• Familiarity with basic networking concepts including TCP/IP, VLANs, and switching.

Compensation: $60,000 - 100,000. 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.

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.