Linux Systems Administrator (TS/SCI with Poly Required)

$153,000 - $207,000/Yr

General Dynamics - McLean, VA

Full-time - Senior

McLean, VA

10,001+ employees

Transportation Equipment Manufacturing

About the position

As a Systems Administrator Expert at GDIT, you will play a crucial role in enhancing the security and efficiency of our nation's IT infrastructure. This position involves the installation, configuration, and maintenance of both Windows and Linux systems, with a focus on improving system stability, performance, and security. You will be responsible for daily operational support, monitoring system health, troubleshooting issues, and collaborating with various teams to ensure seamless integration of applications.

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
• Develop and maintain comprehensive documentation
• 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
• Work with tech team to complete required maintenance and patching, DTOs, File Transfers
• Provide security reports (e.g. Log files, Scans, etc.)
• Coordinate waivers and approvals

Requirements

• Bachelor's Degree in Computer Science, Information Technology, or related technical discipline, or equivalent experience
• 10+ years of related experience
• 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
• Demonstrated experience with Ansible playbooks for provisioning and configuration management
• Demonstrated experience with building and maintaining applications in AWS
• Demonstrated experience with code maintenance using Git, Gitlab, and/or Github
• Demonstrated experience with Atlassian Jira and Confluence
• Demonstrated experience with managing Elasticsearch on CentOS
• Demonstrated experience collaborating with other systems administrators and engineers

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
• Cutting-edge technology you can learn from
• Paid vacation and holidays