Systems Administrator (TS/SCI with Poly Required) with Security Clearance

Job Category: IT Infrastructure and Operations Requisition Number: SYSTE002251 Posting Details

• Posted: August 12, 2026
• Full-Time
• On-site
• Salary Range: $93,662.40 USD to $156,395.20 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 Systems Administrator, a typical day will include the following duties: Required :
• Experience in the operations and maintenance of IT endpoints (desktops, laptops, servers)
• Experience scanning and mitigating vulnerabilities
• Experience with windows desktop and server operating systems
• Ability to research and resolve network issues
• Demonstrated ability to learn quickly, complete tasks independently and creatively, and adapt to new technologies and tools

Desired :

• Prior experience with server upgrades/system updates
• Experience with technologies/domains such as :
• Information Assurance
• Cloud Architecture, Development, and/or Administration
• Computer Network Forensics
• Scripting (i.e., Bash, Powershell, Python) Example tasks:
• Performs technical tasks in support of engineering, information systems, or related technical operations.
• Collaborate with the development team to design, develop, and test software applications, modules, and components.
• Participate in software architecture discussions and contribute ideas for enhancing product functionality and usability.
• Conduct thorough research on emerging technologies, programming languages, and development tools to stay updated with industry trends.
• Work closely with senior developers and mentors to learn and apply software development methodologies and techniques.
• Support the team in various software development tasks, including version control, deployment, and testing.
• Participate in special projects as required.

Education

• Majors in Computer Science, Computer Engineering, Information Technology or other technical degree programs strongly preferred
• 3.0 GPA+ preferred

Clearance

• Must be interested in and eligible to obtain/maintain a Top Secret US Government Clearance
• Candidates with an existing clearance preferred

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Qualifications Skills Behaviors : Motivations : Education Preferred BA/BS or better. Experience Required 3 years:
Demonstrated 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. Click here to learn more about us!