Software Developer SME; Systems Software; TS​/SCI Poly

Software Developer SME (Systems Software) (TS/SCI with Poly Required)

Job Category: Software Engineering

Requisition Number: SOFTW
002114

• Posted:
  May 14, 2026
• Employment Type:
  
  Full-Time
• Location:
  
  On-site
• Salary Range: $ USD to $ USD

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leveraging 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 and skills:

• Full Stack Developer.
• Experience with Java and Python.
• Build and maintain scalable, reliable and secure back-end systems; use server-side programming languages; API development including RESTful services and Graph
  
  QL.
• Build and manage microservices architectures; use containerization tools such as Docker and container orchestration with Kubernetes.
• Use relational databases (e.g., Postgre
  
  SQL, MySQL) and No
  
  SQL databases (e.g., Mongo
  
  DB) to include schema design, query optimization, indexing, and performance tuning for high-volume databases.
• Use database management and version control to maintain data integrity, implement migrations, and ensure data availability in production environments.
• Build and maintain CI/CD pipelines to automate testing, deployment, and monitor processes to ensure quick and reliable deployments of new features and updates.
• Ensure effective integration of front-end interfaces with back-end services to deliver seamless user experience.
• Optimize back-end performance through techniques such as caching (Redis, Memcached), load balancing, and queueing.
• Design scalable architectures to handle high levels of concurrency and large data volumes.
• Knowledge of emerging back-end technologies and best practices and suggest to the Sponsor on how to apply these enhancements to existing systems and develop new capabilities.

• Must be a U.S. Citizen with an active/current TS/SCI clearance with Polygraph.
• 10 years of demonstrated work-related experience.
• BA/BS or higher in Computer Science, Engineering, or related field.
• Experience with relational and No
  
  SQL databases, microservices, containers, CI/CD pipelines, and API development.
• Strong knowledge of Java, Python, and back-end development.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

None required, but it is preferred that applicants hold relevant industry 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.