Senior Full Stack/UI Developer

SOSi; Chantilly (VA); On-site; USD 100,000 - 130,000; Full time

Job summary

A technology and services integrator in Chantilly, VA is seeking a skilled Senior Full Stack/UI Developer to support a US government customer. The role requires designing and maintaining cyber analytic applications, collaborating with subject matter experts to develop user interfaces and backend systems. Candidates must have a TS/SCI clearance and 3–5 years of development experience, with a STEM degree preferred. This is an office-based role involving both desk work and meetings.

Qualifications

• 3–5 years of hands-on experience in full-stack and UI development.
• Experience building scalable and robust backend systems.
• Experience building user interfaces.

Responsibilities

• Design, develop, and maintain cyber analytic applications.
• Collaborate with cyber SMEs, data scientists, and engineers.

Skills

Full-stack development

UI development

Collaboration with cyber SMEs

DevOps principles

AI/ML applications

Education

STEM degree in computer science or related field

Job description

• Clearance Requirement: Top Secret SCI w/ Poly

Company Description

Founded in 1989, SOSi is among the largest private, founder-owned technology and services integrators in the defense and government services industry. We deliver tailored solutions, tested leadership, and trusted results to enable national security missions worldwide.

Job Description

SOSi is seeking skilled Senior Full Stack/UI Developer to support a US government customer in Chantilly, VA.

This role will be responsible for designing, developing, and maintaining cyber analytic applications. This role involves collaborating with cyber SMEs, data scientists, and engineers to translate complex technical requirements into responsive user interfaces and robust backend services.

Qualifications

• Active in-scope TS/SCI clearance with poly.This security clearance requires U.S. citizenship. Candidates will not be nominated for new clearances.
• 3–5 years of hands‑on experience in full‑stack and UI development, or equivalent practical experience, with a STEM degree (field such as computer science, statistics, data analytics, computer engineering, mathematics, etc.).
• Experience building scalable and robust backend systems.
• Experience building user interfaces
• Familiarity with AI/ML applications
• Solid understanding ofDevOps principles(automation, monitoring, reliability)

Preferred Qualifications

• Experience in the US Intelligence Community.

Additional Information

• Office setting with a combination of desk work and meetings.

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.