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
- 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

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Senior Linux & UNIX Systems Administrator (Chennai)
🏢 KLA
📍 Chennai