Senior Systems Administrator — Security & Automation

VTG Defense; Chantilly (VA); On-site; USD 80,000 - 100,000; Full time

Job summary

A leading defense contracting company in Chantilly, Virginia, is seeking a skilled Systems Administrator to manage and support enterprise IT infrastructure. You will ensure the reliability and security of servers and networks while performing system installations, monitoring, and automation tasks. The ideal candidate has over 5 years of experience, strong knowledge of Windows/Linux environments, and must hold an active TS/SCI with Polygraph clearance. A bachelor's degree in IT or a related field is required.

Qualifications

• Active TS/SCI with Polygraph required.
• 5+ years of experience in systems administration or IT operations.
• Strong experience with Windows and/or Linux server environments.

Responsibilities

• Install, configure, and maintain servers, operating systems, and enterprise applications.
• Monitor system performance, availability, and security across environments.
• Automate routine tasks using scripting.

Skills

Systems Administration

Scripting (PowerShell, Bash, Python)

Active Directory

Networking Fundamentals

Education

Bachelor's degree in Information Technology or Computer Science

Tools

VMware

Hyper‑V

Job description

A leading defense contracting company in Chantilly, Virginia, is seeking a skilled Systems Administrator to manage and support enterprise IT infrastructure. You will ensure the reliability and security of servers and networks while performing system installations, monitoring, and automation tasks. The ideal candidate has over 5 years of experience, strong knowledge of Windows/Linux environments, and must hold an active TS/SCI with Polygraph clearance. A bachelor's degree in IT or a related field is required.