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Software Developer; Senior

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: SOS International LLC
Full Time position
Listed on 2026-10-17
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 140000 - 190000 USD Yearly USD 140000.00 190000.00 YEAR
Job Description & How to Apply Below
Position: Software Developer (Senior)

Chantilly, VA, USA

Full-time

Clearance Requirement:
Top Secret SCI w/ Poly

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.

SOSi is an equal employment opportunity employer and affirmative action employer. All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.

Position Requirements
10+ Years work experience
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