Why ITinfra? 

• Small, growing, dynamic and fun company to work with 
• We emphasize and foster professional growth by helping you set and achieve professional goals 
• Exceptional health insurance benefits 
• 401K, Paid Time Off (PTO) 

Position Summary: 

Seeking an experienced Unix Systems Administrator to support the Defense Logistics Agency (DLA) in UNIX/Linux environments. This role includes system deployment, configuration, cybersecurity compliance, performance tuning, customer support, and program oversight for global mission-critical IT infrastructure. 

Job Description: 

• Administer, configure, and maintain UNIX/Linux (Red Hat, Solaris, HP-UX) systems across virtual and standalone environments. 
• Implement system upgrades, security patches, and STIG-compliant configurations in accordance with DLA policies. 
• Manage user/system accounts using Red Hat Identity Manager (IDM) and support ACAS scanning and vulnerability remediation. 
• Install and support COTS applications (e.g., Splunk, HBSS, ArcSight) and monitor performance, logs, and alerts. 
• Troubleshoot complex issues involving system performance, integrity, and security for both NIPRnet and SIPRnet environments. 
• Provide Tier II/III technical support and maintain CRM, SLA, MOU/MOA, and escalation documentation across CONUS/OCONUS. 
• Support RMF/DIACAP security assessments, accreditation readiness, and compliance with DoD, NIST, and DLA cybersecurity frameworks. 
• Assist in planning, executing, and closing out IT infrastructure projects, including briefings and documentation deliverables. 
• Conduct technical reviews and recommend enhancements to improve efficiency, reduce costs, and support transitions or consolidations. 
• Ensure change management compliance, and maintain system audit trails, incident reports, and IAVM responses. 
• Participate in the development of enterprise tools and benchmarking templates to support infrastructure planning. 
• Conduct IA Control Validation (IACV) reviews, audit trail evaluations, and vulnerability scans on a recurring basis. 

Qualifications (Must Haves): 

• Must possess an active Secret Clearance. 
• Must be on-site during business hours at one of the DLA locations: Columbus, OH; Dayton, OH; and Richmond, VA. 
• Seven (7) years of systems administration experience on UNIX operating systems: Red Hat Enterprise Linux (RHEL), Solaris, or HP-UX.  
• Relevant RHCSA or CompTIA Linux+ certification from a nationally recognized technical authority.