Software Engineer – Full-Stack / Simulation at Obsidian Solutions Group LLC
Fredericksburg, VA
$112,000–$146,000
Jul 16, 2026
Fredericksburg, VA
Jul 21, 2026
What this job asks for AI summary
A full-stack software engineering role focused on building web-based data visualizations, secure real-time data pipelines, and 3D simulation environments for defense training and operational use. The work spans from edge devices and micro-controllers through to cloud infrastructure, with additional involvement in AR/VR, game engine development (Unity3D), and AI/ML integration. Suits engineers with a broad technical background and an interest in R&D-oriented, defense-adjacent projects.
Mid level · 4+ years · Washington-Arlington-Alexandria, DC-VA-MD-WV · Top Secret clearance · Full-time
“or” means any one of them counts — you don't need all of them.
Posted 3 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
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 $158,337 (middle half $126,441–$180,105).
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 clearance requirement is stated as 'ability to obtain a clearance up to Top Secret if needed' — this is a conditional gate (must be clearable), not a requirement to hold an active TS clearance on day one. Classified as TopSecret since the JD explicitly gates on the ability to obtain that level.
The core language requirement lists Python, JavaScript/TypeScript, and C# as 'such as' examples of 'modern languages.' Per schema rules, these are still hard gates on the capability (strong programming skills in modern languages), with the named options treated as interchangeable alternatives. They are emitted as separate skill entries reflecting the OR relationship.
Game engine / Unity3D experience is listed under Required Skills with 'professional or strong project experience' — treated as a hard gate. The 'preferred' qualifier refers only to Unity3D over other engines, not to the requirement itself.
AI/ML integration is framed as 'a proactive interest in' rather than demonstrated expertise, and sits in the Required Skills section. Given the soft framing ('proactive interest'), this is a borderline call; it is marked as preferred to avoid over-gating.
Scientific data formats (NetCDF, HDF5), WRF, and GIS/meteorological APIs are listed under 'Preferred experience includes…' within the Required Skills section — treated as preferred rather than hard gates.
No compensation figures are provided in the posting.
The role is on-site in Fredericksburg, VA. Fredericksburg is within the Washington-Arlington-Alexandria CBSA (47900), which is the appropriate metro for labor-market sizing.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): web application development.
Requires a Top Secret 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
The employer publishes the full description on their own site — read it there ↗. Or sign in to read it here — it's free, and it also lets you track this application.