Linux System Administrator
Listed on 2026-10-16
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IT/Tech
Systems Administrator, Unix/Linux, Cloud Computing: Infrastructure & Operations
Job # 10
TEK– Posted 02/11/2026 – Downey & City of Industry, CA
We are seeking an experienced Linux System Administrator to support and manage enterprise computing and infrastructure systems across private and public cloud environments (AWS, Azure, GCP).
This role is responsible for administering, securing, monitoring, and optimizing Linux-based systems while ensuring high availability, operational security, and performance across multiple computing and storage platforms. The ideal candidate brings strong troubleshooting skills, automation experience, and deep expertise in enterprise Linux environments.
Administer and support Red Hat Enterprise Linux (RHEL), Ubuntu, CentOS, SUSE, and Debian environments
Manage Linux server instances across private and public clouds (AWS, Azure, GCP)
Maintain system availability for network, storage, compute, and software systems
Develop and maintain technical documentation, specifications, and operational procedures
Perform patch planning, vulnerability assessments, patch testing, and quarterly security patch implementation
Conduct proactive performance monitoring, tuning, reporting, and capacity planning
Troubleshoot and resolve complex operating system issues in accordance with organizational standards
Manage data center operations while maintaining strict security compliance
Implement and enforce the latest security policies and procedures
Coordinate and execute approved system changes during maintenance windows
Participate in a 24×7 on-call rotation
Collaborate closely with System Administrators, Developers, Application Engineers, Cybersecurity professionals, and Operations teams
Required Skills:Strong analytical and problem-solving abilities
Sound decision-making and organizational awareness
Excellent troubleshooting and critical thinking skills
Working knowledge of Open Shift and Kubernetes (on-prem and cloud environments)
Experience monitoring, tuning, and maintaining Kubernetes clusters
Experience RequirementsMinimum 7 years of experience administering RHEL, CentOS, Ubuntu, SUSE, and Debian
Minimum 4 years of experience developing automation using Ansible, Shell scripting, and Python
Experience implementing automation for complex operational and administrative processes
Experience with security and threat mitigation tools (McAfee, Cisco AMP, Nessus/Tenable, Tanium, Dell Secureworks Red Cloak)
Experience with VMware, vCenter, and ESXi
Education:Bachelor’s degree in Information Technology, Engineering, or related field
(Additional qualifying experience may substitute for education on a year-for-year basis.)
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