System Engineer (L3 -Linux / Solaris)

IT Associates

Irvine, United States of America

6 days ago

Role details

Contract type

Temporary contract

Employment type

Full-time (> 32 hours)

Working hours

Shift work

Languages

English

Experience level

Senior

Job location

Irvine, United States of America

Tech stack

Systems Engineering

Automation of Tests

Backup Devices

Bash

CentOS

Cluster Analysis

Linux

File Systems

DNS

Monitoring of Systems

Python

Korn Shell

Kernel-Based Virtual Machine

Oracle VM Server for SPARC

Logical Volume Manager

Nagios

Network File Systems

Oracle Applications

Performance Tuning

Red Hat Enterprise Linux - RHEL

Ansible

Runbook

Shell Script

Solaris (Operating System)

TCP/IP

Grafana

Information Technology

ZFS File System

Splunk

VMware

Job description

Serve as L3 escalation point for complex Linux and Solaris 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 RHEL/CentOS and Oracle Solaris 10/11 environments
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

Requirements

We are seeking an experienced L3 Systems Engineer with expertise in both Linux (RHEL/CentOS) and Oracle Solaris 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., 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)

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)

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), * 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