Full Stack Software Engineer, AI at Fantom Corporation
Chantilly, VA
—
Jul 30, 2026
Chantilly, VA
Sep 25, 2026
What this job asks for AI summary
A full-stack software engineer role at a defense/intelligence contractor, focused on building AI-powered search applications including RAG pipelines, semantic search, and LLM integrations. The work spans React-based SPAs, Node.js backend services, and Elasticsearch-driven enterprise search platforms, all deployed in cloud environments and operated under Agile/DevSecOps practices. Requires an active TS/SCI clearance with a recent polygraph.
Senior level · TS/SCI clearance
Quick apply — this platform usually takes a CV and a few fields.
“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).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Aug 1, 2026. It is a model, not a headcount.
Why we read it this way (8)
The posting requires candidates to be 'fully cleared with a recent polygraph' — this is treated as a TS/SCI with polygraph gate.
No work location or metro area is specified in the posting; the defense/intelligence community context and clearance requirement suggest a likely DC-area position, but no location is stated so the metro is left blank.
Express is listed alongside 'or similar backend frameworks' — alternatives reflect that the specific framework is interchangeable, but a backend framework is a hard requirement.
Jest and Karma appear together under required qualifications as 'such as Jest or Karma' — treated as interchangeable options for the automated testing requirement.
Git, Jenkins, and Nexus are listed together as examples of required DevOps/CI/CD tools; Git is emitted separately as it is a distinct, near-universal requirement; Jenkins and Nexus are grouped as alternatives.
Vector databases, hybrid search architectures, and cloud-native AI platforms appear only under Desired Qualifications and are marked preferred accordingly.
No degree requirement is stated anywhere in the posting.
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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