Linux Systems Administrator (TS/SCI with Poly Required)

$153,000 - $207,000/Yr

GD Information Technology, Inc. - McLean, VA

Full-time - Senior

Remote - McLean, VA

10,001+ employees

About the position

As a Systems Administrator Expert at GDIT, you will play a crucial role in transforming technology into opportunity by ensuring the stability, security, and performance of both Windows and Linux-based systems. This position involves applying your expertise in system installation, configuration, operations, and maintenance, while also focusing on continuous monitoring and troubleshooting to enhance the infrastructure that supports critical operations for government agencies.

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.
• Develop and oversee implementation of testing strategies and document the results.
• Leverage scripting and system automation tools.
• Research and recommend hardware and software, coordinate installation, and provide backup recovery.
• Interact with users and evaluate vendor products.
• Review incidents to understand the root causes and ensure implementation of proper fixes.
• Collaborate with system administrators, engineers, and the client to ensure proper integration of applications.

Requirements

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

Nice-to-haves

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

Benefits

• 401K with company match
• Comprehensive health and wellness packages
• Internal mobility team dedicated to helping you own your career
• Professional growth opportunities including paid education and certifications
• Paid vacation and holidays