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Software Developer (Senior)

Chantilly, VA, usFull-timeSeniorPosted Sep 30, 2026

Job 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.

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.

Working Conditions Office environment. Working at SOSi All interested individuals will receive consideration and will not be discriminated against for any reason.

Description copied from SOSi's careers page. Read the full posting before you apply.

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