Senior Linux/Unix Administrator with Security Clearance
Anonymous Employer Omaha
Senior Linux/Unix Administrator • Omaha, NE, USA • Full Time • Comprehensive and competitive benefits Job Title: Senior Linux/Unix Administrator
Work Location: USSTRATCOM Offutt AFB
Clearance: TS/SCI
Education: Bachelor's degree in a related field; equivalent work experience may be substituted in lieu of a degree
Experience: 8+ years
Certification: Cloud+ or GICSP or SSCP or Security+ or GSEC
Schedule: Monday - Friday day shift
Travel: Occasional
Salary: Commensurate with experience
Job Listing Number: NE25002
LCAT:
Work Location: USSTRATCOM Offutt AFB
Clearance: TS/SCI
Education: Bachelor's degree in a related field; equivalent work experience may be substituted in lieu of a degree
Experience: 8+ years
Certification: Cloud+ or GICSP or SSCP or Security+ or GSEC
Schedule: Monday - Friday day shift
Travel: Occasional
Salary: Commensurate with experience
Job Listing Number: NE25002
LCAT:
- Senior Network and Computer Systems Administrator Overview: S4 is seeking an experienced Senior Unix/Linux OS Administrator to support the USSTRATCOM IT Enterprise at Offutt AFB. This role provides administration, operations, maintenance, troubleshooting, and security compliance support across multiple enterprise enclaves, including NIPR, SIPR, TS LAN, JWICS, and other classified environments.
- Install, configure, and maintain Linux/Unix operating systems across physical and virtual server environments
- Monitor system performance, availability, and health; provide Tier 2-3 troubleshooting for OS, application, and infrastructure issues
- Apply patches, updates, and DISA STIGs to ensure compliance with DoD cybersecurity standards
- Support Red Hat Enterprise Linux environments, including Ansible, Satellite, and system automation
- Assist with deploying and managing virtual machines and storage systems (VMware, NetApp)
- Maintain accurate system documentation, operational checklists, and configuration records
- Follow established change management and configuration control procedures for all updates and installs
- Provide system health and status reporting, including patching, compliance, and outage information Required Qualifications:
- Active Top Secret security clearance and eligible for SCI access
- Cloud+ or GICSP or SSCP or Security+ or GSEC certification required
- At least 8 years of hands-on experience administering Linux/Unix systems in secure or enterprise environments
- Proficiency with Red Hat Linux, patching, system updates, and configuration management
- Familiarity with VMware environments and NetApp storage solutions
- Strong troubleshooting skills with experience providing Tier 2-3 support
- Ability to follow supported procedures, change control processes, and maintain documentation
- Excellent communication and teamwork skills to support mission-critical operations Desired qualifications:
- One of the following certifications is preferred: ITIL 4 Foundations; Red Hat Certified Systems Administrator; or Linux Professional Institute Certification Linux Administrator; or CompTIA Linux+; or Oracle Certified Professional Oracle Linux System Administrator; or Red Hat Certified Engineer; or Oracle Certified Professional Solaris System Administrator; or Red Hat Certified Specialist in Ansible Automation
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