Software Developer (Senior)

SOSi · Chantilly, VA, us

TS/SCI clearance required · polygraph named

Posted 2026-09-30 · Verified live 2026-11-09

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About this role

**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.

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.

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