Linux Administrator

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Job Title : Linux & HP-UX System Administrator L3 Support

Location :Spring, TX 77389

Job Summary:

We are seeking an experienced L3 System Administrator with deep expertise in Linux (RHEL/SUSE) and HP-UX environments. This role involves advanced troubleshooting, performance tuning, patching, clustering, and automation across mission-critical infrastructure. The ideal candidate will be responsible for ensuring high availability, security, and compliance of Unix/Linux systems.

Key Responsibilities:

Linux Administration (RHEL/SUSE)

• Perform OS installation, patching, upgrades, and security hardening.
• Manage Red Hat Satellite Server for patching and lifecycle automation.
• Configure and troubleshoot LVM, NFS, SAN storage, and cluster file systems.
• Conduct crash diagnostics using kdump, kexec, and core dump analysis.
• Implement clustering solutions (RedHat Cluster, SUSE HAE).
• Optimize performance using tools like perf, strace, and OSWatcher.
  
  

HP-UX Administration

• Manage LVM, cluster file system creation, and volume resizing.
• Handle failover/failback operations in ServiceGuard cluster environments.
• Perform OS patching, firmware updates, and advanced troubleshooting.
• Use tools like SAM, Ignite-UX, GlancePlus, and MeasureWare.
  
  

Automation & Monitoring

• Develop scripts using Ansible and Shell for automation and monitoring.
• Configure logging and health checks using rsyslog, OSWatcher, etc.
  
  

Security & Compliance

• Collaborate with security teams for vulnerability remediation.
• Implement system hardening and ensure compliance with IT policies.
  
  

Incident & Problem Management

• Provide L3 support for critical incidents and root cause analysis.
• Document resolutions and contribute to knowledge base and SOPs.
  
  

Required Skills:

• 7 10 years of experience in Linux and HP-UX system administration.
• Strong expertise in RHEL 7/8/9, SUSE Linux, and HP-UX 11.x.
• Proficiency in Red Hat Satellite Server, LVM, clustering, and SAN/NAS storage.
• Advanced troubleshooting and performance tuning skills.
• Strong scripting knowledge (Shell, Ansible).
  
  

Preferred Qualifications:

• Certifications: RHCSA/RHCE, SLES, HP-UX Certified System Administrator.
• Experience in cloud-based Linux environments (AWS, Azure).
• Familiarity with ITIL processes and enterprise-grade monitoring tools.