Software Developer SME (Systems Software) (TS/SCI with Poly Req with Security Clearance

Job Category: Software Engineering Requisition Number: SOFTW002177 Posting Details

• Posted: June 20, 2026
• Full-Time
• On-site
• Salary Range: $164,382.40 USD to $274,518.40 USD 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 SME Software Developer, a typical day will include the following duties/skills:

Required Skills:

• Experience with Java.
• Experience in Javascript, including Es6+ features and experience with modern frameworks (React or Lit).
• Use of front-end markup languages, with experience implementing responsive designs using Bootstrap framework.
• Work closely with UI/UX designers, transform wireframes, mockup, and prototypes into designs to ensure seamless user experience aligns to HCI principles.
• Integrate front-end components with back-end services using RESTful APIs or GraphQL to fetch, display and update data in real-time applications.
• Implement front end best practices for performance optimization (e.g. lazy loading, code splitting); ensure secure communications between front end and back end services.
• Use GIT for version control; manage codebases and branching strategies.
• Use front end testing frameworks/tools (e.g. Playwright, Jest, Mocha, Cypress) to create unit tests, integration tests, and end-to-end tests to ensure code stability and high quality output. *A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Qualifications Skills Behaviors : Motivations : Education Preferred BA/BS or better. Experience Required 10 years:
Demonstrated work related 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. Click here to learn more about us!