Linux Systems Admin (TS/SCI with Poly Required) - Security Clearance Required

Gci - Chantilly, VA

Full-time

Chantilly, VA

Heavy and Civil Engineering Construction

About the position

The Linux Systems Administrator at GCI is responsible for the installation, configuration, operation, and maintenance of both Windows and Linux-based architectures. This role focuses on enhancing system stability and performance, maintaining security, and providing tier 3 engineering support. The administrator will work with various applications and infrastructure, ensuring continuous operation and effective troubleshooting of complex issues.

Responsibilities

• Provide daily operational support for Linux and Microsoft Windows operating systems and applications.
• Support virtual and physical infrastructure of servers running CentOS in various configurations.
• Develop and maintain environments running in Amazon Web Services (AWS).
• Maintain the integrity and security of systems by monitoring security feeds and dashboards.
• Develop and maintain standards and procedures for applications across a complex computing infrastructure.
• Monitor application and operating system performance; analyze, document and remediate incidents.
• Leverage scripting and system automation tools.
• Research and recommend hardware and software, coordinate installation, and provide backup recovery.
• Collaborate with system administrators, engineers, and clients to ensure proper integration of applications.

Requirements

• Bachelor's Degree in Computer Science, Information Technology, or related technical discipline, or equivalent experience.
• Extensive experience with Redhat and/or Centos.
• Demonstrated experience with VMWare ESXi infrastructure 6.x + vCenter server.
• Experience in server builds using automated mechanisms.
• Experience with Ansible and/or Puppet for provisioning and configuration management.
• Experience with building and maintaining applications in an AWS account.
• Experience with code maintenance using Git, Gitlab, and/or Github.
• Experience with Atlassian Jira and Confluence.

Nice-to-haves

• Certified Linux System Administrator
• Knowledge of network engineering fundamentals and design.
• Experience with Microsoft Windows Server versions 2008, 2016.
• Experience with SCCM, WDS, MS SQL server, Powershell, batch scripting.
• Experience with syslog applications such as Splunk.
• Experience with NetApp NAS systems.
• Experience with Hadoop infrastructure and applications.
• Experience with Cisco Nexus switches and Cisco Firepower Security Appliances.
• AWS Certification.
• ITIL Foundations Certification.
• Certifications relating to IT Security (CISSP, GIAC, Security+).