Cyber Security Systems Engineer
00100 LEIDOS, INC. · 1887 Alexandria, VA
$107,900–$195,050from the description
Jun 30, 2026
1887 Alexandria, VA
Jul 20, 2026
What this job asks for AI summary
A cybersecurity engineering role supporting a DoD-focused test and training software program, based on-site in Alexandria, VA. Day-to-day work centers on vulnerability scanning and analysis, maintaining Authorization to Operate records, managing POA&Ms, reviewing security documentation, and administering tools such as Trellix/ePO and ACAS/Tenable-Nessus on Linux and Windows systems. Suits an experienced security engineer with an active DoD Secret clearance and familiarity with STIGs, IAVMs, and risk management frameworks.
Senior level · 8+ years · Washington-Arlington-Alexandria, DC-VA-MD-WV · Secret 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
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $152,225 (middle half $125,286–$177,673). 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 (8)
The role title is 'Cyber Security Systems Engineer' but the day-to-day work — vulnerability scanning, ATO/POA&M management, STIG application, incident response, and C&A documentation — maps squarely to Information Security Analysts (15-1212) rather than a general systems engineering code.
Degree requirement is effectively None: the JD states 'Bachelor's with 8+ years OR Master's with 6+ years OR additional experience in lieu of a degree', making equivalent experience an accepted substitute.
Total years minimum is set to 8 (the lower bound of the stated range); the Master's path (6+ years) is an alternative, not a lower floor for the general pool.
An active DoD Secret clearance is a hard gate; the posting does not require TS/SCI.
At least one IAT Level II (or Level I) DoD 8570/8140 certification is explicitly required — captured as a skill since it is a named credential gate.
Trellix (ePO) and STIGs appear in both the required and preferred sections with different year thresholds; the required entries are marked as hard gates and the preferred entries (with specific year counts of 4+ and 5+ respectively) are marked as preferred.
The posting is on-site only in Alexandria, VA — remote=false.
Requires a Secret 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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