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Software Developer (Expert)

SOSi • English • IT Infrastructure & Networking Services • Military Logistics • 3 days ago
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Salary
≈ $117k – $215k per year (Estimated)
Location
In office (Chantilly)
Seniority
Senior · 15+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 3, 2026. First seen by Alion on Sep 30, 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, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

*Position is contingent upon contract award*

SOSi is seeking a Software Developer to support our government customer in Chantilly, VA.

Essential Job Duties

  • Serves as a key technical resource providing expert-level guidance on software architecture, performance optimization, and advanced engineering techniques.
  • Lead technical strategy across development teams.
  • Establish coding standards and best practices.
  • Drive innovation in development toolchains, frameworks, and methodologies.
  • Active in scope TS/SCI w/ Poly.
  • Minimum 15+ years of relevant experience.
  • Expertise in enterprise system design and implementation.
  • Experience in integrating complex systems across multiple environments including the Sponsor's commercial cloud environments.

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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