Senior Linux Administrator

Job Title: Senior Linux Administrator Location: Irvine, CA (onsite) Job Description: Provide advanced support for Linux server infrastructure, including troubleshooting and resolving complex system issues and escalations Linux vulnerability management Design, implement, and monitor Linux-based infrastructure to ensure high availability, reliability, and performance Manage and maintain Linux operating systems, including installation, configuration, patching, upgrades, and security hardening Develop, automate, and optimize administrative tasks using scripting languages such as Bash, Python, or Perl Oversee and execute system backups, disaster recovery planning, and data restoration processes Proactively monitor system performance, conduct capacity planning, and tune systems for optimal operation Collaborate with cross-functional teams to support project requirements, automation strategies, and deployment processes Implement and maintain configuration management tools (e.g., Puppet, Chef, Ansible) and infrastructure monitoring solutions Ensure system and data security by managing firewalls, intrusion detection systems, and applying security updates Maintain documentation for system configurations, procedures, and incident response Provide guidance, mentorship, and technical leadership to junior administrators and support staff Participate in change management, incident response, and root cause analysis for critical issues Support and maintain Linux-based applications, services (e.g., Apache, Nginx, MySQL), and network components Stay updated with emerging technologies, evaluate new tools, and contribute to continuous improvement initiatives Participate in on-call rotation to provide 24/7 support for critical systems as needed Good communication skills United IT Solutions