GCCS Tier 1 Systems Administrator
General Dynamics Information Technology · Arnold AFB, TN
$76,565–$100,050from the description
Jul 17, 2026
Arnold AFB, TN
Jul 21, 2026
What this job asks for AI summary
A Tier 1 Systems Administrator role supporting the Global Command and Control System – Joint (GCCS-J) for U.S. Central Command. Day-to-day work involves maintaining Windows and Linux servers, managing database instances (Oracle, Sybase, PostgreSQL), supporting JBoss application servers, resolving service tickets, and sustaining continuity-of-operations capabilities. The role suits candidates with at least three years of sysadmin experience, an active TS/SCI clearance, and willingness to travel internationally up to 15% annually.
Mid level · 3+ years · Tampa, FL · TS/SCI clearance · Full-time
“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
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $103,793 (middle half $81,749–$122,516). This posting is about at that midpoint.
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 (9)
The role is tied to USCENTCOM (U.S. Central Command), headquartered at MacDill AFB in Tampa, FL — inferred as the primary work location, though the posting does not explicitly state a city.
Windows Server and Linux are listed as an 'and/or' requirement ('Windows Server Operating Systems and/or Linux Operating Systems') — emitted as two separate must-have skills with each listed as an alternative for the other, reflecting that proficiency in at least one is required.
Oracle, Sybase, and PostgreSQL appear in the day-to-day responsibilities section ('Maintain database instances') and are treated as required operational knowledge for this role; they also appear under 'Desired' as 'familiarity with' — the responsibilities framing is the stronger signal and they are marked required.
JBoss appears both in the required skills field at the top of the posting ('JBoss Seam') and in the responsibilities ('Maintain Red Hat JBoss application servers'), confirming it as a hard gate.
VMware ESXi, Active Directory, Ansible, Tomcat, ArcGIS, and Google Earth all appear under the 'Desired' section and are marked preferred accordingly.
The GCCS-J / GCCS Family of Systems experience (SEWS, Radiant Mercury, JRE, JTT, TADL, ADSI, JTAGS, ICSF, COP, Agile Client, TMSWeb, MIL STD 2525D) are highly mission-specific military systems listed under 'Desired' — not emitted as skills since they are preferred and too niche/non-canonical for general pool sizing.
The posting lists 'JBoss Seam' in the skills header but the body references Red Hat JBoss broadly; emitted as 'JBoss' to use the canonical product name.
Active TS/SCI clearance is a hard gate ('Must have an active/current TS/SCI clearance').
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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