Linux Administrator

2 weeks ago

Bengaluru, India HCLTech Full time

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.

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    Bengaluru, India HCLTech Full time

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    3 weeks ago

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