Software Developer (Senior)

SOSi1
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📍 Chantilly, VA, United StatesFull time

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

*Position is contingent upon contract award*

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.

Frequently Asked Questions

Is the salary disclosed for the Software Developer (Senior) position at SOSi1?
The salary for this Software Developer (Senior) role at SOSi1 is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Software Developer (Senior) position at SOSi1 located?
This Software Developer (Senior) role at SOSi1 is based in Chantilly, VA, United States. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Software Developer (Senior) role at SOSi1 full-time or part-time?
This is listed as a Full time position. It is posted as a Software Developer (Senior) role at SOSi1.
How do I apply for the Software Developer (Senior) position at SOSi1?
Click the "Apply Now" button on this page. You will be redirected to SOSi1's official application portal hosted on smartrecruiters where you can submit your application directly.
When was the Software Developer (Senior) job at SOSi1 posted?
This Software Developer (Senior) position at SOSi1 was posted on Sep 23, 2026. Apply as soon as possible — early applications are often reviewed first.
Software Developer (Senior)
SOSi1
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