System Administrator

Title

Systems Administrator

Sunnyvale, CA

$90.00 USD Hourly – $110.00 USD Hourly

1 Year

We are seeking a skilled Systems Administrator to manage and secure enterprise-level Linux environments. The ideal candidate will have strong experience in system administration, security compliance, and automation, with a focus on maintaining high availability and security standards in accordance with guidelines.

• Install and maintain Linux/Unix operating systems, including applying security patches and firmware updates.
• Create and manage security groups and enforce access controls.
• Diagnose and resolve hardware and software issues, coordinate hardware repair activities.
• Develop and maintain automation scripts for system administration tasks using shell scripting and Ansible.
• Create and update Standard Operating Instructions (SOI) documentation.
• Perform routine server/workstation patching per organizational guidelines.
• Implement and manage backup and disaster recovery solutions for Linux systems.
• Ensure compliance with NISPOM, RMF, and STIG requirements for system hardening and security.
• Manage servers in disconnected environments and troubleshoot storage issues with NAS/SAN.
• Integrate and manage end-user authentication in mixed environments (NIS & SSSD preferred).

• CompTIA Security or equivalent DoD 8570 certification (or ability to obtain within 60 days).
• Hands‑on experience with Linux or Unix operating systems.
• Strong troubleshooting skills for hardware/software issues.
• Ability to create automation scripts for administrative tasks.
• Excellent documentation skills for SOI creation and updates.

• Experience with Red Hat Enterprise Linux (RHEL) versions 6-9.
• Administration of VMware ESXi virtual machines.
• Proficiency in shell scripting and Ansible automation.
• Familiarity with vulnerability remediation tools (Nessus, Trellix, Splunk, SCAP, HBSS).
• Knowledge of backup and disaster recovery strategies for Linux systems.
• Experience with NAS/SAN storage management and troubleshooting.
• Previous exposure to Solaris, AIX, POWER, SPARC environments.