Senior System Engineer (L3-Solaris/ Linux)

Senior System Engineer (L3 -Solaris / Linux )

Location:

Irvine, California Hybrid 3 days in the office 12-month contract or could be

CTH Client :

Billion Dollar Managed Service firm We are seeking an experienced L3 Systems Engineer with expertise in both Oracle Solaris and Linux (RHEL/CentOS) to support mission-critical financial applications. You will serve as the highest escalation point for complex platform issues, drive performance optimization, and lead automation initiatives. Key Responsibilities Serve as L3 escalation point for complex Solaris and Linux infrastructure issues Perform deep-dive root cause analysis (RCA) for system failures and performance issues Lead performance tuning and capacity planning for critical systems Administer and maintain Oracle Solaris 10/11 environments and RHEL/CentOS and Develop automation scripts (Shell, Python, Ansible) for provisioning, monitoring, and maintenance Manage Solaris Zones, LDOMs, and Linux virtualization (KVM/VMware) Configure and manage ZFS, LVM, VxFS file systems Execute system patching, upgrades, and security hardening Participate in Major Incident bridges and coordinate with vendors (Oracle, Red Hat) Mentor L1/L2 engineers and conduct knowledge transfer sessions Create and maintain technical documentation, SOPs, and runbooks Required Skills -( More Solaris Servers) Solaris (Oracle Solaris 10/11): Expert in Solaris administration, SMF, and ZFS Strong experience with Solaris Zones, LDOMs Proficient in performance analysis (DTrace, mdb, prstat) Limited Linux servers Linux (RHEL/CentOS): Expert in

RHEL 7/8/9

administration, kernel tuning, and troubleshooting Strong experience with LVM, ext4, XFS, NFS, systemd Proficient in performance analysis (sar, vmstat, iostat, strace)

Common:

Expert Shell scripting (Bash/Ksh); proficient in Python Experience with Ansible or similar automation tools Strong networking skills (TCP/IP, DNS, NFS, NIS) Experience with enterprise monitoring tools (Splunk, Grafana, Nagios) Solid understanding of ITSM processes (Incident, Problem, Change) Preferred Qualifications RHCE or RHCSA certification Oracle Certified Professional - Solaris Experience with clustering (Solaris Cluster, Veritas, Pacemaker) Experience with SAN/NAS storage and enterprise backup solutions Banking or financial services domain experience ITIL Foundation certification Education Bachelor s degree in computer science, Information Technology, or equivalent

Working Conditions Location:

Irvine, California (Hybrid)

On-Call:

Participation in 24x7 on-call rotation for critical escalations