Senior Linux & UNIX Systems Administrator

Role overview

Senior Linux & UNIX Systems Administrator at KLA

Enterprise Linux & UNIX Administration

Responsibilities

• Administer, maintain, and support large-scale Linux and UNIX environments including:
• Red Hat Enterprise Linux (RHEL)
• Oracle Linux
• Solaris 10/11
• Ubuntu and other enterprise Linux distributions
• Perform OS installation, upgrades, patching, troubleshooting, performance tuning, and capacity planning.
• Develop automation using shell scripting, Ansible, Python, and other infrastructure automation tools.
• ERP & Mission-Critical Application Support
• Provide infrastructure support for:
• SAP S/4HANA
• SAP ECC
• Oracle ERP and associated applications
• SAP application and database landscapes
• Coordinate with application, database, storage, network, and security teams to ensure high availability and optimal performance.
• High Availability & Clustering
• Design, implement, manage, and troubleshoot:
• Veritas Cluster Server (VCS)
• Linux High Availability Clusters
• Solaris Clustering environments
• SAP High Availability architectures
• Ensure business-critical applications meet availability and recovery objectives.
• Kubernetes & Container Platforms
• Deploy and administer:
• Kubernetes clusters
• Container platforms (Docker, Podman)
• Container orchestration and lifecycle management
• Support modernization initiatives involving cloud-native and hybrid infrastructure solutions.
• Virtualization & Cloud Infrastructure
• Manage VMware, Nutanix, Hyper-V, or similar virtualization platforms.
• Design and support virtualized enterprise workloads.
• Optimize infrastructure utilization and resource allocation.
• Support hybrid cloud integration and cloud migration initiatives.
• Storage & Data Protection
• Administer enterprise storage environments including:
• SAN storage
• NAS storage
• NFS/CIFS environments
• Enterprise backup solutions
• Work with storage teams on provisioning, performance optimization, replication, and capacity management.
• Disaster Recovery & Replication
• Design and maintain enterprise DR strategies supporting critical workloads.
• Implement and manage:
• Storage replication technologies
• VMware SRM
• Database replication
• DR automation and orchestration
• Conduct DR testing and recovery validation exercises.
• Ensure compliance with RTO and RPO requirements.
• Security & Infrastructure Compliance
• Secure Linux and UNIX environments following industry best practices.
• Conduct security assessments, vulnerability reviews, and compliance audits.
• Identify infrastructure security gaps and drive remediation activities.
• Implement hardening standards, CIS benchmarks, and security controls.
• Collaborate with Cyber Security teams on risk mitigation and compliance initiatives.
• Vulnerability Management & Patching
• Own enterprise Linux/UNIX patching programs.
• Coordinate vulnerability scanning and remediation activities.
• Ensure timely resolution of critical and high-risk findings.
• Maintain patch compliance and security reporting metrics.
• Infrastructure Solution Design
• Lead architecture and infrastructure design initiatives.
• Develop scalable, resilient, and secure solutions supporting enterprise workloads.
• Create technical designs, implementation plans, and operational documentation.
• Participate in technology evaluation, proof-of-concepts, and platform selection.
• Hardware & Data Center Infrastructure
• Manage enterprise server hardware platforms including:
• Dell PowerEdge
• HPE ProLiant
• Cisco UCS
• Oracle SPARC
• Lead hardware lifecycle management, upgrades, firmware updates, and refresh programs.
• Coordinate with vendors for troubleshooting and support escalations.

Required qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• 10+ years of Linux/UNIX Administration experience in large global enterprise environments.
• 5+ years supporting SAP S/4HANA, SAP ECC, Oracle ERP, or similar enterprise platforms.
• Proven experience supporting global 24x7 production environments.
• We offer a competitive, family friendly total rewards package.
• We design our programs to reflect our commitment to an inclusive environment, while ensuring we provide benefits that meet the diverse needs of our employees.
• KLA is proud to be an equal opportunity employer
• Be aware of potentially fraudulent job postings or suspicious recruiting activity by persons that are currently posing as KLA employees.
• KLA never asks for any financial compensation to be considered for an interview, to become an employee, or for equipment.
• Further, KLA does not work with any recruiters or third parties who charge such fees either directly or on behalf of KLA .
• Please ensure that you have searched KLA’s Careers website for legitimate job postings.
• KLA follows a recruiting process that involves multiple interviews in person or on video conferencing with our hiring managers.
• If you are concerned that a communication, an interview, an offer of employment, or that an employee is not legitimate, please send an email to talent.acquisition@kla.com to confirm the person you are communicating with is an employee.
• We take your privacy very seriously and confidentially handle your information.

Required skills

• Linux Administration (RHEL, Oracle Linux, Ubuntu)
• Solaris 10/11 Administration
• SAP S/4HANA Infrastructure
• Oracle Enterprise Platforms
• Linux High Availability Clustering
• VMware / Nutanix / Hyper-V
• Kubernetes and Docker
• NAS and SAN Storage
• NFS, CIFS, Multipathing
• Disaster Recovery and Replication Technologies
• Vulnerability Management Tools
• Infrastructure Automation (Ansible, Python, Shell Scripting)
• Monitoring and Observability Platforms
• Enterprise Backup and Recovery Solutions
• Red Hat Certified Engineer (RHCE)
• Red Hat Certified Architect (RHCA)
• Oracle Linux Certification
• Solaris Administration Certification
• VMware VCP
• Kubernetes CKA/CKAD

Preferred qualifications and skills

• Preferred Certifications
• Master's degree preferred.

Employment details

• Location: Chennai [India]

About the employer

• KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem.
• KLA focuses more than average on innovation and we invest 15% of sales back into R&D.

Additional role details

• Company Overview
• Virtually every electronic device in the world is produced using our technologies.
• No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us.
• KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays.
• The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development.
• Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices.
• Life here is exciting and our teams thrive on tackling really hard problems.
• There is never a dull moment with us.
• Group/Division
• The Information Technology (IT) group at KLA is involved in every aspect of the global business.
• IT’s mission is to enable business growth and productivity by connecting people, process, and technology.
• It focuses not only on enhancing the technology that enables our business to thrive but also on how employees use and are empowered by technology.
• This integrated approach to customer service, creativity and technological excellence enables employee productivity, business analytics, and process excellence.
• Job Description/Preferred Qualifications