Linux Administrator

Linux & HP-UX System Administrator HCL Technologies

Working Mode: 5 Days from Office

Job Summary:

HCL Technologies is looking for an experienced 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 ensure 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, 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, 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:

• Expertise in Linux and HP-UX system administration .
• Strong knowledge of RHEL 7/8/9, SUSE Linux, HP-UX 11.x .
• Proficiency in Red Hat Satellite Server, LVM, clustering, 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.