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

Job Category: Software Engineering Requisition Number: SOFTW002142 Posting Details * Posted: June 4, 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: Work Requirements * Perform full‑stack development activities in the Customer’s cloud environment.
* Complete all steps of the product‑design process (conceptualization → UI → functional design → implementation → usability review).
* Develop innovative user‑interface designs based on marketing needs, user analysis, product innovation, technology, and business requirements.
* Create conceptual models, workflows, design prototypes, and UI specifications.
* Ensure adherence to UI guidelines and standards during development and maintenance.
* Conduct or participate in product usability testing.
* Communicate and collaborate effectively with cross‑functional team members.
Required Skills & Demonstrated Experience * Full‑stack software development.
* Experience developing, customizing, and using applications for intelligence analysis.
* Backend development with Python, PostgreSQL, and AWS services (e.g., SQS).
* Front‑end development with CSS, HTML, and vanilla JavaScript.
* User‑centered design principles, web standards, typography, color, and usability standards.
* Git for version control and issue tracking
Highly Desired Skills & Demonstrated Experience * Full‑stack development in the Customer’s cloud environment.
* Containerization using Docker and Kubernetes for developing and deploying applications/microservices.
* Familiarity with the Customer’s data environment.
* Experience in Customer analytic mission areas, especially research on analyst user needs.
* Ability to organize and structure solutions to complex problems.
* Strong coordination and collaboration skills. *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!