Principal Software Engineer at GliaCell Technologies
Columbia, MD
$200,000–$280,000from the description
Jul 22, 2026
Columbia, MD
Jul 25, 2026
What this job asks for AI summary
A senior-level software engineering role supporting a U.S. Government customer, focused on automating and improving foundational infrastructure rather than routine ticket work. Day-to-day responsibilities center on identifying inefficiencies in development and deployment processes and engineering solutions, primarily in Python and Java Spring Boot, with an expectation of significant independent judgment. Suits an experienced engineer comfortable with infrastructure automation, CI/CD pipelines, and containerization who holds an active TS/SCI with Polygraph clearance.
Senior level · 12+ years · Baltimore-Columbia-Towson, MD · TS/SCI clearance · Full-time
Advertised as Principal, but the requirements read as Senior.
“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 $141,954 (middle half $107,994–$205,328). 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 (7)
The title is 'Principal Software Engineer' but the actual scope and requirements (12+ years, individual contributor, single-team subcontract) are consistent with a Senior-level role rather than a true org-wide Principal. Advertised seniority reflects the title; assessed seniority reflects the requirements.
TS/SCI with in-scope Polygraph (within 7 years) is an explicit hard gate — candidates without it are instructed not to apply.
A BS in Computer Science or related field is required, but the JD explicitly allows substitution of 4 additional years of SWE experience in lieu of the degree, so the degree requirement is set to None.
Python and Java (Spring Boot) are listed together under 'Key Skills' as 'and/or', indicating either satisfies the requirement; they are captured as mutual alternatives. Spring Boot is also emitted separately as it is a distinct, named framework explicitly called out.
'AI development tools' is a named category of tooling explicitly required under Key Skills and Responsibilities; no specific product is named.
GitLab CI/CD, Docker, and Kubernetes appear under 'Desired Skills' and are therefore preferred, not required.
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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