Senior Software Engineer – TS/SCI, Polygraph

General Dynamics Information Technology

. Provide Operations and Maintenance support for mission-critical applications used by Intelligence Community customers .

Posted 10/15/2026full-timeChantilly • Virginia • United StatesSenior💰 $141,100 - $190,900 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in software development, particularly in designing, developing, and deploying applications within secure environments. Proficient in Agile methodologies and capable of collaborating with stakeholders to translate business needs into technical solutions.

Highest-signal resume keywords

Software Development ExperienceActive TS/SCI ClearanceRuby On Rails DevelopmentAgile MethodologiesAWS Deployment

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Object-Oriented ProgrammingSOLID PrinciplesLinux-Based DevelopmentWeb Application ArchitectureJavaScript FrameworksBootstrap UI DevelopmentAPI IntegrationDevSecOpsCI/CD PipelinesTechnical Documentation

Soft Skills

Self-Starter MentalityProblem-SolvingCollaboration

Tools & Technologies

Git/GitHubAWSAgile Tools

Certifications & Qualifications

AWS Certifications

Industry Keywords

Intelligence CommunityApplication PerformanceLegacy System SupportApplication IntegrationData Exchange

Tech Stack

Tools & technologies

AWSBootstrapJavaScriptLinuxRubyRuby on RailsTypeScriptVue.js

About the role

Key responsibilities & impact

Provide Operations and Maintenance support for mission-critical applications used by Intelligence Community customers
Respond to user-reported issues and questions, troubleshoot problems, and implement timely solutions
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 for the legacy system
Support application integrations and data exchange with external systems and services
Improve development, deployment, and support processes with team members
Support lifecycle management of legacy and modernized applications during migration
Contribute to the design, development, testing, and deployment of a new application while maintaining the existing production system
Assist with planning and executing decommissioning of legacy application components, services, and infrastructure
Support modernization and transition of users to a next-generation application
Work onsite at customer locations in Chantilly or McLean, Virginia
Travel less than 10%

Requirements

What you’ll need

6+ years of related software development experience
Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or related technical discipline; equivalent combinations of education, technical certifications, training, and experience considered
Active TS/SCI clearance with Polygraph required
U.S. Citizenship required
Strong understanding of software design fundamentals and object-oriented programming principles
Experience applying SOLID, DRY, KISS, and YAGNI principles
Experience in Linux-based development environments
Understanding of Git/GitHub source control and Agile methodologies
Experience architecting and developing web applications
Experience developing with Ruby on Rails
Experience with JavaScript frameworks such as ExtJS and/or VueJS
Experience using Bootstrap for responsive UI development
Experience deploying and supporting solutions in AWS
Experience supporting enterprise web applications in production
Experience working within Agile software development teams
Self-starter mentality and desire to learn and deliver solutions efficiently
AWS certifications preferred/desirable
Experience integrating records from multiple data sources
Experience developing applications consuming and integrating external APIs
Experience supporting applications in secure Intelligence Community environments
Understanding of DevSecOps and CI/CD pipelines

Benefits

Comp & perks

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
Paid vacation and holidays
Medical plan options, including plans with Health Savings Accounts
Dental plan options
Vision plan options
Paid time off including vacation, sick, personal, holiday, parental, military, bereavement, and jury duty leave
Short- and long-term disability benefits
Life insurance
Accidental death and dismemberment insurance
Personal accident insurance
Critical illness insurance
Business travel and accident insurance
Full flex work weeks where possible