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Software Developer (Senior)

SOSi
Chantilly, VA, United States Posted Sep 30, 2026
Full-timeOn-site

About this role

Company Description

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.

Job Description

**This position is contingent upon award of contract

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

Essential Job Duties

  • Lead design and development of complex software solutions writing clean, efficient code.
  • Mentor junior developers.
  • Conduct architectural reviews.
  • Integrate COTS, GOTS, and Open-Source components.
  • Drive continuous improvement in development processes.

Qualifications

  • Active in scope TS/SCI w/ Poly.
  • Minimum 7+ years of relevant experience.
  • understanding of the Sponsor's technical environment.
  • Experience in full lifecycle software engineering.
  • Experience moving capabilities from development through testing to production environments.

Additional Information

Working Conditions

  • Office environment. Working at SOSi**

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

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