System Engineer | 15+ Years Experience | Windows, VMware, Hyper-V

Senior Systems Engineer with 15+ years of experience administering, supporting, and optimizing enterprise Windows Server, VMware, Hyper-V, and Microsoft Azure environments. Managed large-scale global infrastructure in a 24x7 mission-critical environment. Strong expertise in virtualization operations, server and storage platforms, patch and configuration automation (MECM/SCCM, WSUS, PowerShell, Ansible), and backup and disaster recovery (Veeam, Veritas). Skilled in incident, problem, change, and release management using ITSM platforms including ServiceNow, BMC Remedy, and ManageEngine ServiceDesk Plus, with strong root cause analysis and security hardening experience and a proven record of improving system uptime and reducing patch failure rates. ITIL Foundation, VCP6, RHCSA, AWS Solutions Architect Associate, and Microsoft Azure Administrator certified.

PROFESSIONAL EXPERIENCE

Senior Infrastructure Engineer

Skifter Technologies India

Oct 2023 – Present

• Administer multi-tier Windows Server, VMware/Hyper-V, and Azure infrastructure across Production, UAT, Dev, and DR environments, guaranteeing high availability and zero-trust security standards.
• Manage patch automation Veeam backup/DR operations, including PowerShell scripts for health reporting and patch validation.
• Drive Incident/Problem/Change/Release Management in ServiceNow and Jira, performing RCA to reduce repeat outages and meet SLA/KPI targets.

Senior System Engineer

VISA Inc Singapore

Sep 2013 – Jun 2023

• Managed a virtualization environment of ~5,000 ESXi/Hyper-V hosts supporting ~50,000 servers company-wide.
• Led complex VMware-to-Hyper-V cross-hypervisor migrations and large-scale infrastructure decommissioning initiatives with zero business downtime, earning two Visa "Go Beyond" Awards (2021, 2022) for technical excellence.
• Owned patch management, RCA, and vendor coordination (Microsoft, VMware, HP, Dell), plus storage provisioning and capacity planning for a global user base.

Technical Support Analyst (Service Desk)

VISA Inc Singapore

Aug 2008 – Aug 2013

• Led incident handling and cross-regional support coordination during critical outages, maintaining SLA compliance across high-volume ticket queues. Authored alert-handling procedures adopted across the Visa Service Desk.

Operations Support Engineer

Fujitsu Asia Pte Ltd Singapore

Mar 2008 – Jul 2008

• Implemented RFCs and provided second-level support across Windows and Unix platforms, restoring services within SLA.
• Executed daily backup verification and performance monitoring for key enterprise client accounts.

System Engineer

IBM Singapore Pte Ltd Singapore

Jul 2007 – Feb2008

• Monitored customer networks/applications and performed RCA, backups, and account provisioning to ensure system availability.