Software Engineer TS/SCI Polygraph
00100 LEIDOS, INC. · 2143 Annapolis Junction, MD
$57,850–$104,575from the description
Jun 30, 2026
2143 Annapolis Junction, MD
Jul 20, 2026
What this job asks for AI summary
An entry-level software engineering role focused on building and testing a large enterprise system within a national security context. Day-to-day work spans the full development lifecycle — translating agile user stories into working code, writing automated tests, and deploying capabilities — using a mix of Java, Python, C/C++, and web technologies such as Angular and JavaScript. An active TS/SCI Polygraph clearance is required from the first day.
Junior level · National · 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 $138,970 (middle half $107,524–$175,762). 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 posting requires an active TS/SCI with Polygraph on Day One — no exceptions stated. This is a hard gate.
No work location is specified in the posting beyond Leidos's Intelligence Sector/CABA; the CBSA could not be determined. Given the TS/SCI poly requirement, the role is almost certainly on-site at a cleared facility, likely in the National Capital Region, but this is not confirmed in the text.
The Basic Qualifications state 'BS degree or equivalent experience and less than 2 years prior relevant experience' — the degree is explicitly substitutable with experience, so the degree requirement is set to None. The experience ceiling of <2 years places this firmly at the Junior level despite the breadth of technologies listed.
The JD lists many technologies under Basic Qualifications with 'experience or familiarity with' language, which softens the gate somewhat; however, because they appear in the required qualifications section, they are treated as hard gates per policy. The 'familiarity' qualifier is noted here for the hiring manager's awareness.
Source control tool is required but no specific product is named; Git is used as the canonical representative. The JD mentions 'software source control and configuration management tools' generically.
The cryptographic experience requirement (symmetric/asymmetric cryptography, ASN.1, XML canonicalization, digital signatures) is a required qualification but names no specific tool or framework — it is captured as context rather than a named skill, since no concrete technology product is identified.
Swing and JavaFX appear in the required qualifications list but are UI toolkit libraries rather than standalone named tools in common use as hiring signals; they are omitted as skills per the naming guidance, but hiring managers should be aware they are listed as required familiarity items.
The preferred section lists UFT (Unified Functional Tester) and FITNesse as testing tools; these are grouped with JUnit/Selenium alternatives rather than emitted separately to avoid over-fragmenting the testing skill cluster.
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.
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