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.
Working Conditions
- Office environment.
Working at SOSi
All interested individuals will receive consideration and will not be discriminated against for any reason.
Skills Required
- Active in-scope TS/SCI with Polygraph clearance
- 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
SOSi Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about SOSi and has not been reviewed or approved by SOSi.
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Healthcare Strength — Health coverage is considered a relative strength, with international plan options and substantial employer contribution that support OCONUS and travel-heavy work. Company materials also highlight a comprehensive medical offering alongside wellness support.
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Retirement Support — A 401(k) program is available, with indications of employer matching though specifics are not publicly detailed. This suggests foundational retirement support for eligible employees.
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Career-Linked Recognition & Rewards — Compensation is often characterized as competitive for cleared, hard‑to‑hire, and certain overseas or mission‑critical roles. Pay levels appear closely tied to contract demands, clearance, and location.
SOSi Insights
What We Do
SOSi is a technology and services integrator focused on the aerospace, defense, and government services industry, described as one of the largest private, founder-owned companies in its sector.
