Linux/HP-UX System Administrator – L3 Support

Base pay range $100,000.00/yr - $116,000.00/yr Job Title: Linux/HP-UX System Administrator – L3 Support Job Summary: We are seeking an experienced

L3 System Administrator

with deep expertise in

Linux (RHEL/SUSE)/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: 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. 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/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. Disclaimer HCL is an equal opportunity employer, committed to providing equal employment opportunities to all applicants and employees regardless of race, religion, sex, color, age, national origin, pregnancy, sexual orientation, physical disability or genetic information, military or veteran status, or any other protected classification, in accordance with federal, state, and/or local law. Should any applicant have concerns about discrimination in the hiring process, they should provide a detailed report of those concerns to secure@hcltech.com for investigation. Compensation and Benefits A candidate’s pay within the range will depend on their work location, skills, experience, education, and other factors permitted by law. This role may also be eligible for performance-based bonuses subject to company policies. In addition, this role is eligible for the following benefits subject to company policies: medical, dental, vision, pharmacy, life, accidental death & dismemberment, and disability insurance; employee assistance program; 401(k) retirement plan; 10 days of paid time off per year (some positions are eligible for need-based leave with no designated number of leave days per year); and 10 paid holidays per year. Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Industries: IT Services and IT Consulting Referrals increase your chances of interviewing at HCLTech by 2x Get notified about new Linux Specialist jobs in Chandler, AZ. Phoenix, AZ $135,000.00-$160,000.00 3 weeks ago Linux Engineering Manager - Optimisation for Latest Hardware Space Force - Senior Information Systems Specialist (Sign-On Bonus Available) Scottsdale, AZ $87,324.00-$94,487.00 1 month ago Software Engineer (Python/Linux/Packaging) Embedded Linux Field Engineering Manager (Americas only) Linux Software Engineer - Ubuntu for Next-Gen Silicon (multiple roles and seniority levels) Embedded Linux Field Engineer for Devices/IoT Tempe, AZ $102,000.00-$210,000.00 2 weeks ago Software Engineering Manager - Desktop and Embedded Linux Optimisation Embedded Linux Senior Software Engineer - Optimisation We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

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