Front-End Software Engineer (TS/SCI with Poly Required) with Security Clearance

Job Category: Software Engineering Requisition Number: SOFTW001975 Apply now Posting Details *

• Posted: June 19, 2026
• Full-Time
• On-site
• Salary Range:

$164,382.40 USD to
$274,518.40 USD

• Locations Showing 1 location Chantilly Chantilly, VA, USA Chantilly Chantilly, VA, USA +0 more locations less locations Job Details Description GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry. At GCI, we solve the hard problems. As a Front-End Software Engineer, a typical day will include the following duties: JOB DESCRIPTION The Front-End Software Engineer will design and develop complex new software products, or make significant enhancements to existing software.  The ideal candidate is a hands-on developer with significant experience in building modular, reusable components and features. They must have extensive, firsthand technical expertise in a modern front-end framework. They must be at ease working in an Agile environment with little supervision. This person should embody a passion for continuous improvement and innovation. KEY RESPONSIBILITIES
• Build reusable components that align with the system design patterns.
• Optimize application for maximum speed and scalability.
• Participate in team design and code reviews.
• Collaborate with a small team of engineers and designers to understand business requirements and user experience goals.
• Provide recommendations for continuous improvement.
• Provide ongoing maintenance, support, and enhancements in existing systems and platforms.
• Troubleshoots complex problems and provides customer support for software systems and application issues. EDUCATION AND EXPERIENCE
• Bachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.
• 8 to 10 years of related software development experience. REQUIRED QUALIFICATIONS
• Extensive experience with Angular
• Expert knowledge of Javascript, HTML, and CSS.
• Experience designing complex search interfaces.
• Experience in optimizing web applications for performance and usability.
• Experience with integrating with third part APIs.
• Proficient understanding of code versioning tools, such as Git
• Experience with Linux operating systems DESIRED QUALIFICATIONS
• Experience with SASS or LESS.
• Hands-on experience working with NodeJS, MongoDB
• Familiarity constructing ElasticSearch queries *A candidate must be a US Citizen and able to obtain TS/SCI with Polygraph clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Qualifications Skills Behaviors : Motivations : Education Preferred Bachelor of Science or better in Computer Science or related field. Experience Required 8-10 years: Demonstrated related software development experience. 10 years: Related work experience. Licenses & Certifications Equal Opportunity Employer This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor. You are using an unsupported browser. To use this site, please use a supported browser. Download Firefox Download Chrome Download Internet Explorer