Linux System Administrator

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Job # 10219 – Posted 3/9/2023 – Los Angeles, CA

Position Description

Linux System Administrator is responsible for applying Red Enterprise Linux (RHEL), Ubuntu, CentOS, Suse and Debian concepts and industry best practices to resolve complex issues, provide daily operational management of private and public cloud Linux server instances, maintaining thorough documentation of procedures and system configurations, selecting methods and techniques to obtain solutions, evaluating technologies, performing cost/benefit analysis, and completing additional work assigned by the manager and lead.

The position requires system administration experience along with the skill to administer various distributions and open‑source applications of the Linux operating system; works closely with other System Administrators, Application Engineers, Developers, Cyber Security professionals, Systems Engineers, and Operations specialists to provide top‑quality secure computing and storage services to customers. The Linux System Administrator is responsible to develop and manage the computing and infrastructure systems on private and public cloud environments (AWS, Azure, GCP).

Provide creative problem solving, critical thinking, and advanced troubleshooting across a broad domain of secure computing systems and support activities. Manage data center computing operations while maintaining strict operational security requirements and directives – implement latest computer security policies and procedures. The Linux System Administrator is responsible to manage availability of network, storage, computing, and software of multiple computing and storage systems.

Develop technical specifications and maintain documentation for processes and technical guides. Patch planning, vulnerability assessment, patch policy preparation, patch testing and workflow design for quarterly security patch updates across RHEL, Ubuntu, CentOS, Suse and Debian Linux systems. Research and resolve operating system problems efficiently and accurately, while adhering to organizational standards and practices. Perform proactive performance monitoring, analysis, alerting, reporting, and tuning as well as proactive capacity planning/analysis and provisioning solutions.

Coordinate, facilitate, manage, and execute approved changes during maintenance windows in a 24 × 7 on‑call environments.

Skills Required

Possess knowledge in decision making; organizational awareness; and problem‑solving skills.

Skills Preferred

• Three (3) years of working experience within the last five (5) years configuring, administering, and maintaining Oracle Security Suite (i.e., OAM, OIM, OUD).
• Working knowledge of Microsoft/Azure Active Directory (AD) and implementation of data sync/recon jobs between OIM/OUD and AD.
• Oracle Fusion Middleware (FMW) 12c products (e.g., Web Logic, OHS, WCP, WCC, SOA, OSB, BPM).
• Hands‑on administration experience of Oracle Enterprise Manager (OEM) and familiar with different management tools (e.g., OMC, OCI O&M) in the Oracle Cloud Infrastructure (OCI) environment.
• Experience with Java and Shell scripting.
• Experience with Red Hat Enterprise Linux and Oracle Linux.
• Experience installing, configuring, and managing virtual machine (VM) servers.
• Three (3) years of working experience within the last five (5) years, supporting and maintaining an Oracle infrastructure that serves over 1,500 users requiring access to mission critical business applications.
• Two (2) years of working experience within the last three (3) years configuring networking servers (e.g., DNS, Load Balancer, Forwarder, Web Application Firewall) to support enterprise systems. Working experience in configuring SSL Certificates.
• Three (3) years of experience, within the last five (5) years, configuring and maintaining Oracle Products on Oracle Linux platform and/or Oracle Bare Machine platform.
• Familiar with Oracle Cloud Infrastructure (OCI) and on‑premises Mainframe/Windows/Linux environments.

Experience Required

This classification requires a minimum of seven (7) years of experience in Red Hat Enterprise Linux, CentOS, Ubuntu, Suse, Debian…