Linux Systems Administrator

Role and Responsibilities

• Ensures that records of system downtime and equipment inventory are properly maintained.
• Applies revisions to host system firmware and software.
• Works with vendors to assist support activities.
• Maintains Linux server operating systems.
• Maintains and monitors server and network environment with Nagios.
• Serves as a resource for the Network Systems Administrator in managing physical VMware Infrastructure.
• Maintain Nagios Environment by adding and removing hosts, increasing functionality to support a fast growth environment.
• Develop automation scripts for consistency and supportability across multiple environments.
• Plan and execute timely Linux system upgrades and supported software patches.
• Plan, install and configure Linux systems.
• Provide support for new applications and upgrades to existing systems.
• Design solutions to technical problems and implementation of new systems or infrastructure changes.
• Monitor critical systems and take corrective actions prior to failures.
• Prepare for disaster recovery and ensure that appropriate backups are completed and tested.
• Troubleshoot software and hardware failures and identify network problems.
• Establish and maintain security and integrity controls.

Education, Skills and Experience

• Excellent verbal and written communication & collaboration skills.
• Ability to work with minimal supervision and effectively prioritize workload.
• Effective time management and organizational skills as well as the ability to manage multiple and changing priorities with attention to detail.
• At least 5 years’ experience managing and maintaining a production Linux (CentOS, RedHat) environment.
• Demonstrated expertise in managing Linux-based systems, and OS related services at scale.
• A familiarity with Windows Server and administering Active Directory.
• Advanced knowledge of security trends and best practices, experience managing hardening high-value systems against attackers.
• Demonstrated expertise in managing systems via an automated configuration management system such as Docker and Git repository.
• Extended experience working effectively in a shared software development environment, including version control, bug tracking, release management, and code review.
• Extended experience with Shell scripting, Perl, Python, and/or PHP.
• Proven ability to lead and work on large/complex system deployment projects in a team environment, and ability to develop appropriate plans to meet computing needs.
• Experience in SAN multipathing software.
• Experience in VMWare virtualization.