UNIX/Linux OS Administrator

General Dynamics Information Technology; Fort Wayne, Northern (IN, KY); Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

Health benefits

401(k) with company match

Educational Assistance

Flexible work week

Internal mobility support

Rewards and recognition programs

Innovative and collaborative culture

Job summary

General Dynamics Information Technology is seeking a UNIX/Linux OS Administrator to support mission-critical government and defense projects. The role focuses on secure Linux administration, system hardening, patching, and incident response to ensure 24/7 IT services for strategic networks.

The position requires TS clearance with SCI eligibility, a BS degree (or equivalent experience), and ITIL 4 Foundation certification within 9 months.

Qualifications

• BS degree; may be substituted for additional years of experience.
• 3+ years of IT/DoD configuration management experience.
• Security Clearance Level: Top Secret with SCI eligibility.
• Required Certifications: ITIL 4 Foundation certified within 9 months of start; GFACT or CND or Security+ or GSEC.

Skills

Security clearance readiness

Linux administration

Incident response

Root-cause analysis

Collaboration with security teams

Education

BS degree

Tools

VMware

Hyper-V

KVM

Cloud-based VMs

Job description

UNIX/Linux OS Administrator

Make meaningful contributions that fuel critical outcomes for some of the most complex government, defense, and intelligence projects. Join GDIT as a UNIX/Linux OS Administrator for a career where your growth is just as important as the mission you support.

MEANINGFUL WORK AND PERSONAL IMPACT:

As a UNIX/Linux OS Administrator, the work you’ll do at GDIT will be impactful to the mission of USSTRATCOM. USSTRATCOM is a Combatant Command responsible for strategic deterrence, nuclear operations, and enterprise IT services essential to national security. It oversees Nuclear Command, Control, and Communications (NC3), Joint Electromagnetic Spectrum Operations (JEMSO), Global Strike, and Missile Threat Assessments, working closely with other Combatant Commands, Services, and defense agencies. SCITLS will be a key component that will ensure mission success and the safety of the U.S. and its allies by providing 24/7 IT services and network support for NIPRNet, SIPRNet, JWICS, and SAP/SAR environment.

WHAT YOU'LL NEED TO SUCCEED:

• BS degree; may be substituted for additional years of experience
• 3+ years of IT/DoD configuration management experience
• Security Clearance Level: Top Secret with SCI eligibility
• Required Certifications: ITIL 4 Foundation certified within 9 months of start; GFACT or CND or Security+ or GSEC
• Location: Offutt AFB, NE
• Strong experience with Linux distributions (RHEL, CentOS, Ubuntu, SUSE)
• Experience with VMware, Hyper-V, KVM, or cloud‑based VMs
• Understanding of security hardening standards (DISA STIGs, CIS benchmarks)
• OS patching and vulnerability remediation
• SELinux or AppArmor experience
• Managing firewall rules (firewalld, iptables)
• Secure configuration of SSH, PAM, sudo policies
• Strong troubleshooting communication (translating technical issues)
• Incident response and root‑cause analysis
• Ability to elevate and collaborate with networking, storage, and security teams

GDIT IS YOUR PLACE:

• Excellent customizable health benefits (Medical, Dental and Vision)
• 401K with company match
• Educational Assistance and eLearning
• Flexible work week
• Internal mobility team dedicated to employee advancement
• Rewards and Recognition programs
• Innovative and collaborative environment encouraging highly motivated critical thinking

SCITLS