SOSi

Defense, intelligence, and logistics solutions provider

Senior Software Developer

Software EngineeringConfirmed live in the last 24 hours

Full-timeChantilly, VA, USA$102.4k - $212.7k /yrIn-person

About the Job

Requirements

Active in-scope Top Secret/Sensitive Compartmented Information clearance with polygraph.
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.

Responsibilities

Lead the design and development of complex software solutions while writing clean, efficient code.
Mentor junior developers.
Conduct architectural reviews.
Integrate commercial off-the-shelf, government off-the-shelf, and open-source components.
Drive continuous improvement in development processes.

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.

Compensation: 102414 to 212706 (USD) (YEARLY)

About the Company

SOSi

Defense, intelligence, and logistics solutions provider

SOSi provides defense and government solutions, delivering data science, software, network engineering, ISR, language services, and logistics to government customers across 16+ countries. Its offerings include data-centric, zero-trust networks, AI-powered intelligence platforms, and cloud-native solutions that help U.S. and allied forces operate and decide. The company differentiates itself through founder-led leadership, a large veteran workforce, and a technology-first approach that combines engineering with mission delivery in national security contexts. Its goal is to provide trusted, mission-ready technology and support that strengthen the capabilities of U.S. and allied forces wherever they operate.

Company size: 1,001-5,000
Company stage: Not listed
Total funding: Not listed
Headquarters: New York City, New York
Founded: 1989

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