Senior Linux & UNIX Systems Administrator

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