Software Developer SME; Systems Software; TS​/SCI Poly Req Security Clearance

Position: Software Developer SME (Systems Software) (TS/SCI with Poly Req with Security Clearance
Location: Dulles

Job Category:
Software Engineering

Requisition Number: SOFTW
002113 Posting Details
* Posted:
May 14, 2026

* Full-Time

* On-site

* Salary Range: $ USD to $ 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:
* The candidate will be responsible for creating the user facing side of the application as it operates in a web page.

* The candidate will take requirements from a teammate with User Interface/User Experience (UI/UX) expertise in the form of wireframes, site maps, diagrams/schematics, process maps, feature lists, mock-ups and visual specifications.

* The candidate will actively utilize the Lean Agile development process.

* The candidate will be required to seamlessly connect the front end of the application to the data tier via the microservices and middleware components.

* The candidate will be responsible for development of unit tests and the automated execution of those tests as well as participation in end-to-end testing is required.

Required Skills:

* Experience with Java.

* Experience in Java script, 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 Graph

QL 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.  to learn more about us!