Unix Systems Administrator (DLA/On-site)

ITfrastructure, Inc. (d/b/a ITinfra); Dayton (OH); On-site; USD 60,000 - 110,000; Full time

Job summary

An innovative and dynamic company is seeking a skilled Unix Systems Administrator to enhance security and optimize mission success for the Defense Logistics Agency. In this role, you will manage and maintain UNIX/Linux systems, ensuring compliance with cybersecurity frameworks while providing critical support for mission-critical IT infrastructure. This position offers a collaborative environment focused on professional growth, with excellent health benefits and a commitment to employee development. If you are passionate about technology and looking to make a significant impact, this opportunity is perfect for you.

Benefits

Exceptional health insurance benefits

401K

Paid Time Off (PTO)

Qualifications

• 7+ years of experience in UNIX/Linux systems administration.
• Active Secret Clearance is required for this role.

Responsibilities

• Administer and maintain UNIX/Linux systems in compliance with DLA policies.
• Provide Tier II/III technical support and manage user/system accounts.

Skills

UNIX/Linux Administration

Cybersecurity Compliance

Performance Tuning

Customer Support

System Deployment

Education

RHCSA Certification

CompTIA Linux+ Certification

Tools

Red Hat Identity Manager (IDM)

Splunk

HBSS

ArcSight

Job description

Unix Systems Administrator (DLA/On-site)

Unix Systems Administrator (DLA/On-site)

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Direct message the job poster from ITfrastructure, Inc. (d/b/a ITinfra)

Implementing Zero Trust Architecture to Enhance Security, Productivity, and Data Integrity, while Optimizing for Future-Readiness and Mission Success

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.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

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