Senior System Administrator

Responsibilities

• Provide operational support, maintenance, troubleshooting, patching, automation, and system administration across enterprise Windows, Linux, and cloud-hosted environments.
• Sustain system reliability, security compliance, infrastructure modernization, and lifecycle sustainment activities.
• Administer and maintain Windows Server and Linux server environments.
• Perform IAVA patching, vulnerability remediation, and compliance reporting across enterprise systems.
• Provide troubleshooting, maintenance, and operational support for on-premises and cloud-hosted IT environments.
• Execute system patching, software maintenance, upgrades, hardening, and disk management.
• Implement and manage Windows Group Policy Objects and Active Directory-related administration.
• Develop automation scripts using PowerShell, Bash, Python, or related scripting languages.
• Support AWS cloud infrastructure using services such as EC2, Lambda, CloudFormation, and IAM.
• Auxiliary in infrastructure as code initiatives using Ansible and Terraform.
• Develop and maintain system automation tools to improve reliability, efficiency, and uptime.
• Work collaboratively with technical teams in a fast-paced, mission-focused environment.

Requirements

• Active TS/SCI with Polygraph.
• 15 years of Systems Administration experience supporting programs of similar scope, type, and complexity.
• Bachelor's degree in a technical discipline; 5 additional years of SA experience may be substituted in lieu of a degree.
• DoD 8570 compliance with IAT Level I.
• Experience maintaining Windows Server environments, including hardening, patching, upgrades, and disk management.
• Experience administering Linux servers, including patching and software maintenance.
• Experience with IAVA patching and reporting.
• Experience maintaining and upgrading installed software across enterprise systems.
• Strong troubleshooting and problem-solving skills across computer systems and software.

Qualifications

• Experience maintaining and upgrading installed software across enterprise systems.
• Experience with AWS services such as EC2, Lambda, CloudFormation, and IAM.
• Experience with automation and scripting tools including Ansible, Terraform, PowerShell, Bash, and Python.
• Experience with Active Directory and Group Policy Management.
• Understanding of cloud security practices, patch management, and compliance reporting.
• Ability to work independently and collaboratively in a fast-paced technical environment.