Linux Jobs in Orange, CA

Job Description

Roles & Responsibilities

1. Firewall Operations & Troubleshooting

• Create, modify, and manage Palo Alto firewall policies
• Review traffic logs and validate firewall policy changes
• Perform network troubleshooting using packet capture / traffic dumps
• Diagnose issues based on NAT, security policies, and session states

2. Load Balancer Operations

• Configure and manage Citrix ADC VPX-based load balancers (LB/CLB)
• Manage VIPs, services, service groups, and health checks
• Resolve LB incidents such as backend server failures and connection issues
• Analyze logs using nstrace, tcpdump, and related tools

3. OpenStack Private Cloud Operations

• Provision, deploy, and manage OpenStack instances
• Manage volumes, shared volumes, networks, and security groups
• Troubleshoot instance boot failures, network issues, and volume attachment problems
• Support compute node failures and live migration operations

4. Server Operations & Vendor Support

• Operate Dell servers used as OpenStack compute nodes
• Monitor server health via iDRAC and perform basic maintenance
• Handle hardware failures and coordinate with Dell support
• Support hardware replacement and vendor service activities

5. Storage Operations

• Manage NetApp ONTAP storage systems
• Monitor nodes, SVMs, volumes, and aggregates
• Analyze performance metrics such as latency, IOPS, and throughput
• Respond to storage incidents and performance degradation issues

6. Linux OS Operations

• Perform Linux system administration and incident troubleshooting
• Handle root password changes, mount issues, repository issues, etc.
• Resolve boot failures, filesystem issues, and network interface problems
• Analyze system logs and systemd service issues

7. Monitoring & Observability

• Operate monitoring platforms such as Zabbix, Grafana, and Prometheus
• Monitor servers, networks, storage, OpenStack, LB, and firewall systems
• Manage alerts, dashboards, metrics, and triggers
• Perform root cause analysis using logs, metrics, and alerts

8. Automation & Operational Improvement

• Automate deployments and updates using Ansible
• Automate repetitive operational tasks
• Build workflow automation using Microsoft Teams / Power Automate
• Automate alerts, reporting, approval, and request workflows
• Develop scripts using Python, Shell, or PowerShell
• Leverage AI coding tools for scripting, log analysis, and documentation

Qualifications

• Experience in Linux OS administration and troubleshooting
• Understanding of TCP/IP, routing, NAT, and firewall policies
• Hands-on experience with Palo Alto or similar firewalls
• Experience with Citrix ADC VPX or similar load balancers
• Experience with OpenStack or private cloud environments
• Experience with NetApp ONTAP or enterprise storage systems
• Experience with Dell servers and iDRAC-based operations
• Packet capture / traffic dump troubleshooting experience
• Experience with Ansible or scripting for automation
• Ability to perform root cause analysis using logs, metrics, and network data

Preferred Qualifications

• Experience with Zabbix, Grafana, or Prometheus
• OpenStack component experience (Nova, Neutron, Cinder, Glance)
• NetApp ONTAP CLI and performance tuning experience
• Citrix ADC nstrace / tcpdump troubleshooting experience
• Microsoft Teams / Power Automate workflow automation experience
• Scripting skills in Python, Shell, or PowerShell
• Understanding of REST API, Webhook, JSON, YAML
• Git-based version control experience
• Experience with AI-assisted development tools (ChatGPT, Copilot, etc.)
• Experience using AI for RCA, log analysis, and automation

Key Skills

OpenStack, Palo Alto Firewall, Citrix ADC VPX, NetApp ONTAP, Dell Server/iDRAC, Linux Administration, Monitoring (Zabbix/Grafana/Prometheus), Ansible, Automation Tools, Python/Shell/PowerShell, TCP/IP Networking, Packet Analysis, Incident Troubleshooting, Vendor Coordination, AI-assisted Operations

Additional Information

All your information will be kept confidential according to EEO guidelines.