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Data Scientist (Senior)

SOSi • English • IT Infrastructure & Networking Services • Military Logistics • Python • SQL • Apache NiFi • 14 days ago
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Salary
≈ $108k – $206k per year (Estimated)
Location
In office (Chantilly)
Seniority
Senior · 7+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 5, 2026. SOSi scores C on the Alion truth index.

Overview
Company
Impact
Profile match

SOSi

SOS International, known as SOSi, is a privately held American government services company founded in 1989 that began by supplying linguists and interpreters to the United States military. It has since broadened into intelligence analysis, logistics and base operations support, information technology and network engineering, and cybersecurity, working for defence, intelligence and federal civilian customers both in the United States and in deployed locations. Headquartered in Reston, Virginia and still family owned, it employs several thousand people, a large share of them holding security clearances.
sosi.com • HQ: Reston, United States • IT Infrastructure & Networking Services • Military Logistics • Translation Services • Intelligence • 1001-5000 employees • Est. 1989
Tech stack of SOSi

Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.

*Position is contingent upon contract award*

SOSi is seeking a Data Scientist to support our government customer in Chantilly, VA.

Essential Job Duties

  • serves as a key technical resource for advanced statistical methods, ML algorithm selection, and enterprise data strategy.
  • Active in scope TS/SCI w/ Poly.
  • Minimum 7+ years of relevant experience.
  • Proficiency with major data science tools and languages such as PostgreSQL/SQL, Python, R, NiFi, and Git.
  • Experience with cleaning, managing, optimizing performance with, and processing large volumes of data.
  • Familiarity with industry best practices for software/hardware optimization when processing large data sets.
  • Experience with machine learning, statistical modeling, time-series forecasting, and/or geospatial analytics.
  • Experience with Hadoop, Spark, or other parallel storage/computing processes.
  • Experience providing services to develop AI/ML models and weights to facilitate object detection, data triage, search/optimization, inference, and automated discovery and decision making.

Work Environment

  • Normal office conditions.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.

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