Senior Linux Administrator

Senior Linux AdministratorLocation: Irvine, CA (onsite)Provide advanced support for Linux server infrastructure, including troubleshooting and resolving complex system issues and escalationsLinux vulnerability managementDesign, implement, and monitor Linux-based infrastructure to ensure high availability, reliability, and performanceManage and maintain Linux operating systems, including installation, configuration, patching, upgrades, and security hardeningDevelop, automate, and optimize administrative tasks using scripting languages such as Bash, Python, or PerlOversee and execute system backups, disaster recovery planning, and data restoration processesProactively monitor system performance, conduct capacity planning, and tune systems for optimal operationCollaborate with cross-functional teams to support project requirements, automation strategies, and deployment processesImplement and maintain configuration management tools (e.g., Puppet, Chef, Ansible) and infrastructure monitoring solutionsEnsure system and data security by managing firewalls, intrusion detection systems, and applying security updatesMaintain documentation for system configurations, procedures, and incident responseProvide guidance, mentorship, and technical leadership to junior administrators and support staffParticipate in change management, incident response, and root cause analysis for critical issuesSupport and maintain Linux-based applications, services (e.g.