Sr. Systems Engineer - Linux

Job Description

Title - Sr. Systems Engineer - Linux

Location - San Diego, CA

We are seeking an experienced Senior Systems Engineer to join our team. You will be responsible for managing and automating enterprise Linux/Unix platforms across VMware-based on-prem and hybrid environments. Ensures high availability, security compliance, and operational stability of mission-critical banking applications. You will also act as an L2/L3 System Engineer resource, working across IT Infrastructure teams in a regulated banking environment.

Responsibilities:

Linux Administration

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• Manage Linux/Unix systems (build, patching, performance tuning)
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• Ensure system stability, security hardening, and uptime
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• Support application teams with OS and middleware dependencies
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• Participate in Major Incident (P1/P2) management and RCA
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• Drive automation to reduce manual recovery efforts like Bash / Python.
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Puppet Automation

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• Develop and maintain Puppet modules/manifests
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• Automate server provisioning, patching, and application deployment
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• Enforce configuration standardization and drift remediation
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VMware Infrastructure

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• Administer vSphere, ESXi, and vCenter
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• Provision and manage Unix/Linux VMs and templates
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• Support capacity planning, performance tuning, and DR (Zerto)
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Security & Compliance

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• Ensure adherence to SOX, FFIEC, and internal security policies
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• Perform patching, vulnerability remediation, and access control
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• Maintain audit-ready documentation and compliance posture
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Backup & DR

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• Support enterprise backup and DR solutions
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• Participate in DR drills and failover testing
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• Ensure high availability and no single point of failure
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Change & Operations

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• Execute changes via ServiceNow (CAB, risk, rollback)
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• Maintain runbooks, SOPs, and documentation.
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Requirements:

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• 5+ years of experience in Linux Administration
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• Strong expertise in Puppet (configuration management)
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• Hands-on experience with VMware (vSphere, ESXi, vCenter)
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• Experience in production support / incident management
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• Scripting: Bash / Python
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• Knowledge of networking (TCP/IP, DNS) and storage systems
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• Experience with ITSM (incident/change management)
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Preferred:

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• RHCE / RHCSA
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• VMware VCP
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• Puppet Certified Professional
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• ITIL
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