Principal Python Software Engineer
GliaCell Technologies · Laurel, MD
$200,000–$280,000from the description
Jul 19, 2026
Laurel, MD
Jul 21, 2026
What this job asks for AI summary
A senior engineering role supporting a U.S. Government customer, focused on building and improving compliance analytics tools and automating compliance workflows. Day-to-day work involves developing and prototyping machine learning and AI algorithms, integrating them into existing systems, and building models with appropriate monitoring. Suited to a highly experienced software engineer with a strong Python background and familiarity with data analysis and ML model development, who holds an active TS/SCI with Polygraph clearance.
Senior level · 20+ years · Baltimore-Columbia-Towson, MD · Bachelor's required · 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.
Posted 2 times — it's one opening, so apply once.
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 $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 (9)
The title is 'Principal Software Engineer' but the actual scope — compliance analytics, ML/AI model building, EDA, and proof-of-concept research — sits squarely at a Senior level. '20 years + BS' is a staffing-firm convention for a high-clearance government contract and does not by itself elevate the role to Staff or Principal on the career ladder.
An active or reinstateable TS/SCI with Polygraph is an explicit hard gate; the posting opens and closes with this requirement.
The degree requirement is a BS (or 4 additional years of experience in lieu), making a Bachelor's the stated minimum formal degree.
'GM Learn' in the Required Skills section appears to be a proprietary or agency-specific tool (possibly 'Ghostmachine Learn' or a government system); it is listed as required but is not a widely recognized commercial product — hiring managers should verify the exact tool name with the customer.
Ghostmachine (Map/Reduce) appears under Highly Desired Skills and is likely an agency-specific platform; listed as preferred accordingly.
'Agentic AI' and 'Machine Learning Feature Development' appear under Desired Skills as concepts rather than named tools; only the concrete named technologies (LLMs, Spark, AWS) from that section were captured.
The role is onsite full-time in Laurel, MD, which falls within the Baltimore-Columbia-Towson, MD CBSA.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): Exploratory Data Analysis.
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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