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Software Engineer- TS/SCI with Polygraph with Security Clearance

General Dynamics Information TechnologyChantilly, VA🇺🇸United StatesPosted Oct 15, 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Chantilly, VA, United States
Posted
Yesterday
RubyAWSAgileBootstrapGitJavaScriptRESTRails

Job Description

At GDIT, people are our differentiator. As a Software Engineer supporting our Intelligence Community customer, you will be trusted to solve complex technical challenges while delivering mission-critical capabilities that directly support national security objectives. We are seeking a highly motivated and experienced software engineer with an active TS/SCI clearance with Polygraph to join an Operations and Maintenance (O&M) team responsible for supporting enterprise applications used across the Intelligence Community.

In this role, you will collaborate with agile development teams to maintain, enhance, and improve applications serving a broad range of IC customers. Responsibilities include responding to user inquiries, troubleshooting and resolving issues, implementing system enhancements, and supporting the ongoing evolution of mission-focused applications. Flexible work arrangements may be considered, including part-time schedules for exceptionally qualified candidates with relevant IC experience. How a Senior Software Engineer Will Make an Impact

  • Provide Operations and Maintenance (O&M) support for mission-critical applications used by Intelligence Community customers.
  • Respond to user-reported issues and questions, troubleshoot problems, and implement solutions in a timely manner.
  • Design, develop, test, and deploy software enhancements and new capabilities.
  • Collaborate with stakeholders to gather requirements and translate business needs into technical solutions.
  • Participate in Agile ceremonies including sprint planning, daily standups, reviews, and retrospectives.
  • Maintain and improve application performance, reliability, and security.
  • Develop and maintain technical documentation and system artifacts.
  • Support application integrations and data exchange with external systems and services.
  • Work closely with team members to continuously improve development, deployment, and support processes.

Required Skills and Experience

  • Self-starter mentality with a strong desire to learn and deliver solutions efficiently to customers.
  • Strong understanding of software design fundamentals and object-oriented programming principles.
  • Experience applying modern software engineering principles including SOLID, DRY, KISS, and YAGNI.
  • Experience working in Linux-based development environments.
  • Understanding of Git/GitHub source control and Agile development methodologies.
  • Experience architecting and developing web applications.
  • Experience developing applications using Ruby on Rails.
  • Experience with JavaScript frameworks such as ExtJS and/or VueJS.
  • Experience utilizing Bootstrap for responsive user interface development.
  • Experience deploying and supporting solutions in Amazon Web Services (AWS).

Desired Skills

  • AWS certifications.
  • Experience integrating and unifying records from multiple data sources.
  • Experience developing applications that consume and integrate external APIs.
  • Experience supporting applications in a secure Intelligence Community environment.
  • Understanding of DevSecOps practices and CI/CD pipelines. Experience
  • Experience supporting enterprise web applications in production environments.
  • Experience working within Agile software development teams.
  • Full-time preferred; part-time schedules may be available for highly qualified candidates.

WHAT YOU'LL NEED TO SUCCEED

  • Education: Bachelor's degree in Computer Science, Engineering, or a related technical discipline, or the equivalent combination of education, technical certifications or training, or work experience.
  • Experience: 6+ years
  • Location: Chantilly or McLean, VA (On Customer Site)
  • TS/SCI with Polygraph
  • US Citizenship Required GDIT IS YOUR PLACE:
  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays #WeAreGDIT
#JET
#GDITEnhanced2026
#VA_2026Alumni

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