UNIX/Linux OS Administrator

About the Role

Join GDIT as a UNIX/Linux OS Administrator and contribute to critical outcomes for complex government, defense, and intelligence projects. Your work will support USSTRATCOM, a Combatant Command responsible for strategic deterrence, nuclear operations, and enterprise IT services essential to national security. You will play a key role in providing 24/7 IT services and network support for NIPRNet, SIPRNet, JWICS, and SAP/SAR environments through the SCITLS program.

Responsibilities

• Perform systems administration for enterprise Linux/Unix solutions.
• Install, configure, and maintain Linux/Unix operating systems.
• Analyze and resolve problems associated with the operating system’s servers, hardware, applications, and software.
• Monitor system performance and ensure compliance with security standards.
• Evaluate availability of all server resources and perform activities for Linux servers.
• Configure and deploy virtual machines and provide backup for all configuration procedures.
• Maintain and monitor all patch releases, design patch installation strategies, and ensure systems meet program standards.
• Provide Tier 2 and 3 troubleshooting support, interfacing with end users and other technical teams.
• Conduct Security Technical Implementation Guide (STIG) compliance assessments, harden Linux systems according to DoD standards, and ensure adherence to security policies.
• Manage firewall rules (firewalld, iptables) and secure configurations of SSH, PAM, and sudo policies.
• Perform incident response, root-cause analysis, and collaborate with networking, storage, and security teams.

Requirements

• BS degree; may be substituted for additional years of experience.
• 3+ years of IT/DoD configuration management experience.
• Top Secret security clearance with SCI eligibility.
• ITIL 4 Foundation certification within 9 months of start; GFACT, CND, Security+, or GSEC certification.
• US Citizenship required.

Skills

• 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.
• Strong troubleshooting and communication skills (translating technical issues).
• Ability to escalate and collaborate with cross-functional teams.

Benefits

• 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.
• Short and long-term disability benefits, life insurance, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance.
• Paid time off plans, including vacation, sick, personal time, holidays, parental, military, bereavement, and jury duty leave.

Pay

The likely salary range for this position is $112,840 - $120,750, based on experience, geographic location, and contractual requirements.

Schedule

• Scheduled Weekly Hours: 40
• Work Location: Onsite at USA NE Offutt AFB