Senior System Administrator

We are seeking an experienced Senior Systems Administrator to support the lifecycle sustainment and modernization of mission-critical education, learning, and training applications supporting a Government enterprise. This role is ideal for an experienced systems administrator with expertise in Windows and Linux administration, cloud infrastructure, automation, and enterprise operations.

As part of a collaborative engineering team, you will administer hybrid environments, implement automation solutions, perform system maintenance, and ensure the security, reliability, and availability of enterprise systems supporting national security missions., * Administer and maintain enterprise Windows Server and Linux environments across hybrid infrastructures.

• Perform IAVA patching, vulnerability remediation, and compliance reporting for enterprise systems.
• Execute operating system patching, upgrades, maintenance, and software deployments for Windows and Linux servers.
• Troubleshoot complex hardware, operating system, and application issues while maintaining system availability.
• Implement and manage Windows Group Policy Objects (GPOs) to support enterprise security and configuration standards.
• Develop and maintain PowerShell scripts to automate administrative and operational tasks.
• Support AWS cloud environments utilizing services such as EC2, Lambda, CloudFormation, and cloud-native scripting.
• Develop Infrastructure as Code (IaC) solutions using Terraform and Ansible for provisioning, configuration management, and automation.
• Build and maintain automation tools and system scripts that improve operational efficiency and system reliability.
• Perform software installation, upgrades, maintenance, and lifecycle support for enterprise applications.
• Collaborate with software developers, cloud engineers, cybersecurity personnel, and infrastructure teams to support mission-critical systems.
• Develop technical documentation, operational procedures, and system administration best practices.
• Support continuous improvement initiatives that enhance enterprise security, automation, and system performance.

• Active TS/SCI with Full Scope Polygraph.
• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical discipline.
• Minimum of 15 years of Systems Administration experience supporting programs of similar scope, complexity, and technical requirements. Five additional years of relevant experience may substitute for a bachelor's degree.
• Extensive experience administering Windows Server environments, including hardening, patching, upgrades, and disk management.
• Experience administering Linux server environments, including patching, software maintenance, and operational support.
• Experience performing IAVA patching and compliance reporting.
• Experience maintaining and upgrading enterprise software applications.
• Experience supporting both on-premises and cloud-hosted enterprise environments.
• Strong troubleshooting, analytical, and problem-solving skills.
• Ability to work during required core business hours.
• DoD 8570 Information Assurance Technical (IAT) Level I certification is required.

Preferred Qualifications

• PowerShell scripting
• AWS EC2
• AWS Lambda
• AWS CloudFormation
• Terraform
• Ansible
• Infrastructure as Code (IaC)
• Windows Group Policy (GPO)
• Enterprise automation
• Hybrid cloud infrastructure
• Windows Server administration
• Linux administration
• Enterprise patch management
• Experience supporting Department of Defense or Intelligence Community customers.