• Deploy, manage, and maintain virtual machines on VMware vSphere/ESXi and/or Proxmox platforms. • Design, maintain, and standardize VM templates and golden images for Linux and Windows OS environments. • Monitor, tune, and optimize VM performance, capacity, and resource utilization across compute, memory, storage, and networking. • Support lifecycle management of virtual infrastructure, including patching, major upgrades, and decommissioning of legacy systems. • Administer and harden Linux distributions (e.g., Ubuntu, CentOS) and Windows Server environments. • Perform OS-level patching, configuration management, and security hardening following best practices. • Troubleshoot OS, application, and infrastructure issues across virtualized environments. • Implement and maintain backup, restore, and disaster recovery processes for virtual machines and hosted applications. • Automate provisioning, configuration, and operational tasks using Bash, PowerShell, Python, or Ansible. • Build and manage CI/CD workflows that integrate with virtualized infrastructure. • Introduce Infrastructure-as-Code and automation-first practices to reduce manual operational work. • Collaborate with application teams to ensure consistent, reproducible, and deployment-ready environments. • Implement and maintain monitoring, logging, and alerting for hosts, VMs, and applications. • Participate in incident response, root cause analysis, and continuous improvement efforts. • Develop and maintain operational standards, documentation, and runbooks for virtualized infrastructures. • Support on-call or escalation rotations to ensure platform availability and reliability.