Information System Security Engineer III at ClearEdge
Jessup
—
Jul 25, 2026
Jessup
Jul 27, 2026
What this job asks for AI summary
This role centers on leading security engineering and accreditation for an AI-enabled secure space operations platform called MERIDIAN. The engineer owns the full Risk Management Framework package — including SSP, SAR, and POA&M documentation — while working alongside developers to review architecture, conduct vulnerability assessments, and implement controls such as identity management, audit logging, and encryption. It suits an experienced ISSE with a TS/SCI with Polygraph clearance and a background in DoD or IC classified system accreditation.
Senior level · 8+ years · TS/SCI clearance · Full-time
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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 $132,021 (middle half $99,961–$167,095).
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 job title is 'Information System Security Engineer III' — the 'III' suffix signals a senior-level individual contributor, consistent with 8+ years of experience required and a 5–8 year ISSE-specific requirement.
No work location is specified in the posting; the role supports a classified DoD/IC platform (MERIDIAN) and requires an active TS/SCI with Polygraph, which strongly implies an on-site or cleared-facility requirement rather than remote work.
The degree requirement is listed as a Bachelor's in Computer Science, Software Engineering, or related field, but the posting explicitly states '4 years of experience may substitute,' so no degree is hard-gated.
Total years minimum is set to 8, drawn from '8 years of experience in information systems' stated in the requirements block; the 5–8 years ISSE-specific figure is a per-role range, not a separate overall gate.
The alt SOC (15-1299) reflects that 'Information System Security Engineer' is a distinct DoD/IC occupation that blends security analysis with engineering; 15-1212 is the closest standard BLS code but does not perfectly capture the hands-on engineering and ATO ownership scope described.
CI/CD, DevSecOps, container/cloud security, SAST/DAST, cryptography, penetration testing, and ICD 705 all appear under the explicit 'Nice to Have' section and are marked preferred accordingly.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): NIST SP 800-53.
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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