Linux Server Administrator at ManTech
Quantico, VA
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Jul 13, 2026
Quantico, VA
Jul 21, 2026
What this job asks for AI summary
A Linux systems administration role supporting classified and unclassified IT infrastructure for a federal defense customer in Quantico, VA. Day-to-day work covers installing and maintaining Red Hat and Ubuntu servers in physical and VMware environments, enforcing DoD security compliance (STIGs, RMF, vulnerability patching), writing automation scripts in Bash, Python, and Ansible, and providing Tier II/III troubleshooting. Suits experienced enterprise Linux administrators with a TS/SCI clearance and relevant certifications.
Senior level · 7+ years · Washington-Arlington-Alexandria, DC-VA-MD-WV · TS/SCI clearance
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $128,188 (middle half $100,819–$156,589).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (8)
The 7-year minimum applies to candidates with a Bachelor's degree; 10 years is required without a degree. The degree is not a hard gate since equivalent experience is explicitly accepted — the degree requirement is set to None accordingly.
The 3-year Linux systems administration requirement is stated separately from the overall 7-year IT experience floor; both are captured (3 years on the Linux skill, 7 years as the role-level minimum).
IAT Level II certification is required; CompTIA Security+ CE and CCNA Security are the named options and are captured as alternatives on a single skill.
An active Linux OS certification is required; RHCSA and CompTIA Linux+ are the named options and are captured as alternatives.
Splunk, ACAS/Tenable Nessus, HBSS, Kubernetes, Docker, and AWS/Azure GovCloud all appear under the 'Preferred Qualifications' heading and are marked accordingly.
The posting names 'SCP' alongside SSH as a secure communication protocol; SCP is a sub-feature/mode of SSH rather than a separately marketed tool and is subsumed under the SSH skill.
No compensation figures are provided in the posting.
Requires a TS/SCI clearance — the cleared population is a small fraction of this occupation, so the real candidate pool is materially smaller than the estimate below, which does not model clearance.
Read the full posting
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