Core Responsibilities & Technical Duties: Server & Storage Hardware Management (Physical Layer) Perform physical installation, racking, cabling, and decommissioning of server and storage hardware. Execute diagnostic procedures, component-level troubleshooting, and hardware replacements (HDD, RAM, PSU, controllers) for Dell, HP, Lenovo, Xfusion, NetApp, Huawei. Conduct physical inventory audits and maintain accurate data center asset documentation. Storage Area Network (SAN) & Switch Administration Administer enterprise storage arrays (e.g., Huawei, Dell EMC PowerStore, NetApp FAS): tasks include provisioning LUNs, configuring snapshots, replication, and performance tuning. Configure and maintain SAN fabric switches (Brocade or Cisco MDS) responsibilities include zoning, ISL management, and firmware updates. Monitor storage capacity and performance metrics, providing trend analysis and forecasting. Virtualization Platform Management Deploy, configure, and manage virtual machines (VMs) on VMware vSphere (vCenter, ESXi) and Oracle VM platforms. Manage VM resource allocation (vCPU, vRAM, storage), VM templates, and vSphere clusters (HA, DRS). Perform P2V migrations and assist in virtualization platform upgrades and patch application. Operating System Administration & Hardening Perform full lifecycle administration of Red Hat Enterprise Linux (RHEL) servers, including installation, configuration, performance tuning, and troubleshooting. Administer legacy Oracle Solaris systems, including zones, ZFS, and service management. Implement and validate system hardening standards based on CIS Benchmarks, DISA STIGs, and internal bank security baselines for both Linux and Solaris environments. Systems Maintenance & Patching Develop and execute detailed patching plans for operating systems, hypervisors, and firmware. Utilize enterprise tools (e.g., Red Hat Satellite, WSUS for Linux, OEM tools) for patch deployment and compliance reporting. Adhere to the bank's change management process for all production updates, including pre- and post-patch validation testing. Infrastructure Monitoring & Preventive Maintenance Monitor system alerts and performance dashboards from tools such as SolarWinds, Nagios, or vendor-specific management suites. Execute scheduled preventive maintenance activities on all assigned hardware, including cleaning, environmental checks, and firmware reviews. Perform routine restoration tests of communication (VoIP) and uninterruptible power supply (UPS) systems. Qualifications & Technical Competencies: Bachelor's degree in Computer Science, Information Systems, or a related technical field, or equivalent combination of education and experience. Minimum of 5 years of direct, hands-on experience in an enterprise infrastructure role.