Systems Engineer SME (TS/SCI with Poly Required)

GCI, Inc.; McLean, Northern (VA, KY); Hybrid; USD 164,000 - 275,000; Full time

Job summary

GCI, Inc. seeks a Systems Engineer SME (TS/SCI with Poly Required) to support high-security IT infrastructure onsite in McLean, VA. The role requires strong expertise across Windows, Linux, UNIX, and cloud environments, with the ability to manage multi-system integrations and security constraints.

The candidate will work with system developers to elicit requirements, plan projects, and troubleshoot complex issues. U.S. citizenship and active TS/SCI clearance are required.

Qualifications

• Experience with server technologies, MVS, Linux, UNIX, and Windows OS.
• Experience with Enterprise IT and security applications.
• Ability to work in multi-system environments and with network requirements.
• Strong written and verbal communication skills.
• US Citizenship and TS/SCI with Poly clearance.

Responsibilities

• Provide SME systems engineering across Windows, Linux, UNIX environments.
• Set up and manage servers in Commercial Cloud Enterprise (C2E).
• Collaborate with developers to elicit requirements and plan projects.
• Analyze and resolve complex technical problems independently.

Skills

Windows Server

MVS storage

Linux

UNIX

Windows OS

Cloud (C2E)

Enterprise IT

Networking impact

Security constraints

Project management

Communication

Independent work

Team collaboration

Requirements tracing

Tech research

Education

AS in Computer Science

BS in Engineering

Job description

Systems Engineer SME (TS/SCI with Poly Required)

Job Category: IT Infrastructure and Operations

Requisition Number: SYSTE002270

• Posted : August 21, 2026
• Full-Time
• On-site
• Salary Range : $164,382.40 USD to $274,518.40 USD

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:

REQUIRED SKILLS AND DEMONSTRATED EXPERIENCE

• Windows System Engineer/Server Administrator/familiarity w/Cloud.
• The candidate shall have the following required skills, certifications and demonstrated experience.
• Demonstrated experience with server technologies, MVS (multiple virtual storage), Linux, UNIX, and Windows technology and operating systems.
• Demonstrated experience with Enterprise Information Technology (EIT) and supported utility and security applications.
• Demonstrated experience setting up and managing servers in Commercial Cloud Enterprise (C2E).
• Demonstrated experience working in a multi-system and multi-application environment with multiple specialties such as operating systems, e-mail, database platforms, storage technologies, and hardware support.
• Demonstrated experience working with network requirements to anticipate impact on respective operating systems.
• Demonstrated experience understanding organizational standards for operating configurations, security constraints, and procedures for managing organization software.
• Demonstrated experience problem solving, to include independent diagnoses and resolving complex technical problems.
• Demonstrated experience using analytical planning and organizational skills.
• Demonstrated experience and understanding of project management techniques to plan and execute projects.
• Demonstrated experience using strong oral and written communication skills in order to articulate complex technical concepts to both technical and non-technical audiences.
• Demonstrated experience working independently on routine tasks.
• Demonstrated experience working as part of a team.
• Demonstrated experience working with system developers to elicit requirements and engage in joint project planning.
• Demonstrated experience tracking requirements.
• Demonstrated experience researching the latest technological developments in the relevant operating systems to identify impact on organization operating systems and to anticipate changes.

HIGHLY DESIRED SKILLS AND DEMONSTRATED EXPERIENCE

• Demonstrated experience working with internal business partners to elicit requirements.

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

Associate of Science or better in Computer Science or related field.

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.