Senior Linux And UNIX Systems Administrator

KLA; Chennai; On-site; INR 4,000,000 - 6,000,000; Full time

Job summary

KLA seeks an experienced IT Infrastructure Specialist in Chennai to administer large Linux/UNIX environments (RHEL, Oracle Linux, Solaris) and to support SAP S/4HANA, SAP ECC, Oracle ERP, and related landscapes. You will collaborate with cross-functional teams to ensure high availability, performance, and security across on-premises and cloud infrastructure.

The role covers clustering, virtualization (VMware/Nutanix/Hyper-V), container platforms (Kubernetes, Docker), backup and DR, storage

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• Master's degree preferred.
• 10+ years of Linux/UNIX administration experience in large global enterprise environments.
• Experience supporting SAP S/4HANA, SAP ECC, Oracle ERP, or similar enterprise platforms.

Responsibilities

• Administer, maintain, and support large-scale Linux and UNIX environments including RHEL, Oracle Linux, Solaris 10/11, and Ubuntu.
• Provide infrastructure support for SAP S/4HANA, SAP ECC, Oracle ERP and associated applications.
• Coordinate with application, database, storage, network, and security teams for high availability and performance.
• Design, implement, manage, and troubleshoot Veritas Cluster Server and Linux High Availability Clusters; SAP HA architectures.
• Deploy and administer Kubernetes clusters, Docker/Podman, and container lifecycle management.
• Manage VMware, Nutanix, Hyper-V, and other virtualization platforms; support cloud/hybrid infra.
• Handle storage & data protection including SAN/NAS/NFS; optimize performance and replication.
• Oversee disaster recovery planning, replication technologies, and DR testing.
• Implement security controls, vulnerability management, and CIS-aligned hardening.

Skills

Attention to detail

Communication

Education

Bachelor's degree in Computer Science / IT / Engineering

Master's degree

Tools

RHEL

Oracle Linux

Ubuntu

Veritas Cluster Server

Linux High Availability

VMware

Nutanix

Hyper-V

Kubernetes

Docker

Podman

SAN Storage

NAS Storage

NFS/CIFS

Ansible

Python

Shell Scripting

Vulnerability Management Tools

Oracle ERP

SAP S/4HANA Infrastructure

SAP ECC

Job description

Job Description:

Company Overview

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

Key Responsibilities

Enterprise Linux & UNIX Administration

• 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.

Technical Skills

• Linux Administration (RHEL, Oracle Linux, Ubuntu)
• Solaris 10/11 Administration
• SAP S/4HANA Infrastructure
• Oracle Enterprise Platforms
• Veritas Cluster Server (VCS)
• 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

Preferred Certifications

• Red Hat Certified Engineer (RHCE)
• Red Hat Certified Architect (RHCA)
• Oracle Linux Certification
• Solaris Administration Certification
• VMware VCP
• Kubernetes CKA/CKAD

Education

• Bachelor's degree in Computer Science, Information Technology, Engineering, or related field.
• Master's degree preferred.

Experience

• 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