Front-End Software Engineer (TS/SCI with Poly Required), Chantilly

Front-End Software Engineer (TS/SCI with Poly Required) Job Category:

Software Engineering

Requisition Number:

SOFTW001975

Posted : March 4, 2026

Full-Time

On-site

Salary Range : $164,382.40 USD to $274,518.40 USD

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.

Troubleshoot complex problems and provide 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

Experience in optimizing web applications for performance and usability.

Experience with integrating with third‑party 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.

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