Systems Engineer Senior; TS​/SCI Poly

Systems Engineer Senior (TS/SCI with Poly Required)

Job Category: IT Infrastructure and Operations

Requisition Number: SYSTE
002019

Posted: March 31, 2026 |
Employment Type: Full-Time |
Location: On-site |
Salary Range: $107,744 USD to $ USD

GCI embodies excellence, integrity and professionalism. Our employees support customers by delivering high‑value mission solutions across Data Analytics, Software Development, Engineering, Targeting & Analysis, Operations, Training, and Cyber Operations. We maximize success by building trusted partnerships with customers and industry.

As a Systems Engineer, your typical day will include:

• Maintaining operating systems (primarily Ubuntu, Fedora, CentOS versions of Linux)
• Application support, integration, design, and assistance as needed
• Linux OS patching, file and server backups, maintaining group policies
• Booting and troubleshooting server issues, managing server installs, updates, and permissions
• Design, implementation, and operational aspects of multiple systems, operating environments, and software
• Scheduling, planning, and performing system upgrades

Required:

• VMWare administration experience (AWS/cloud knowledge/expertise a plus)
• Exposure to scripting Linux functions (Perl, BASH)
• Knowledge of shell scripting, creating cron jobs, analyzing log files, managing user accounts and groups

Education Requirement: BA/BS or better.

Experience Requirement: 10+ years of professional experience; two additional years of equivalent technical work experience in lieu of a degree.

Citizenship & Clearance: A candidate must be a US Citizen and hold an active/current TS/SCI with Polygraph clearance.

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.