Senior Linux & UNIX Systems Administrator

KLA-Belgium; Chennai District; On-site; INR 350,000 - 600,000; Full time

Benefits offered by this job

Total rewards package

Inclusive environment

Job summary

KLA seeks a senior IT infrastructure professional to administer and optimize large-scale Linux/UNIX ecosystems, SAP S/4HANA and Oracle ERP landscapes, and mission-critical applications.

You will design high-availability, virtualization, cloud, and storage solutions, drive security hardening and DR testing, and mentor global teams. The role demands extensive enterprise experience and leadership.

Qualifications

• 10+ years of Linux/UNIX administration in large global enterprises.
• 5+ years supporting SAP S/4HANA, SAP ECC, Oracle ERP or similar.
• Experience in 24x7 production environments and global operations.
• Bachelor's in CS/IT/Engineering; Master's preferred.

Responsibilities

• Administer, maintain, and support large-scale Linux and UNIX environments.
• Provide infrastructure support for SAP S/4HANA, SAP ECC, Oracle ERP and related apps.
• Design, implement, and troubleshoot high availability and clustering setups.
• Deploy and manage Kubernetes clusters and container platforms.
• Manage virtualization and cloud infrastructure (VMware/Nutanix/Hyper-V).
• Storage administration including SAN/NAS/NFS/CIFS and backups.
• Disaster recovery planning, testing, and automation.

Skills

Linux Admin

Solaris Admin

SAP S/4HANA Infrastructure

VCS Clustering

VMware/Nutanix/Hyper-V

Kubernetes & Docker

Storage & Backup

Automation (Ansible)

Monitoring & Observability

Security & Compliance

Disaster Recovery

Education

Bachelor's in CS/IT/Engineering

Master's degree preferred

Tools

Ansible

Python

Shell scripting

VMware

Nutanix

Docker

Kubernetes

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

Minimum Qualifications

• 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.

Benefits

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.

Equal Opportunity Employer

KLA is proud to be an equal opportunity employer