Systems Engineer SME (TS/SCI with Poly Required)

Job Category: IT Infrastructure and Operations

Requisition Number: SYSTE002222

Posting Details

• Posted: July 22, 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 Systems Engineer, a typical day will include the following duties/skills:

Required Skills

• AWS Infrastructure: Deep expertise in AWS cloud environments, including architectural best practices, cost optimization, and high availability.
• Infrastructure as Code (IaC): Proven experience designing and managing cloud infrastructure using Terraform as the primary tool for provisioning and configuration.
• CI/CD & Automation: Demonstrated experience building and maintaining robust CI/CD pipelines using Jenkins to automate the deployment of web applications (e.g., Tomcat, containerized services).
• Development Workflows: Experience managing source control and development workflows within GitHub, ensuring code quality and efficient integration processes.
• Agile Methodology: Experience working within agile development environments, participating in sprints, and collaborating closely with cross-functional software teams.
• Linux/Unix Expertise: Strong background in managing, hardening, and optimizing RHEL/Rocky Linux systems.
• Scripting & Programming: Proficiency in Python or Bash for automation and tool development.
• Security & Compliance: Experience securing platform components, including secret management, PKI/encryption, and maintaining documented artifacts for security certification.
• System Documentation: Proficient in maintaining architecture diagrams, runbooks, and internal developer documentation to facilitate ease of use.

Desired Skills

• Internal Processes: Familiarity with the customer's internal technology stack and established change management processes.
• Database Management: Strong knowledge of managed database services (RDS, Postgres, MySQL) and their integration into platform architectures.
• Search & Analytics: Experience implementing and managing Elasticsearch for logging, search, and data analysis.
• DevOps Culture: Experience advocating for and implementing DevOps practices, including "shift left" security, automated testing, and developer self-service tooling.
• Cloud Optimization: Demonstrated ability to perform performance analysis and cost-optimization for distributed cloud-native systems.

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

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Motivations

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Education

Preferred

Bachelor of Science or better in Engineering or related field.

Experience

Preferred

15 years:
Demonstrated 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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