Led infrastructure architecture, engineering and operations across multiple environments, including Cloud (Azure & AWS) and on-premise systems. Implemented cloud migration strategy and managed cloud infrastructure across Azure and AWS.Successfully managed and mentored a diverse team of on-site and offshore resources, including managers, system engineers, DBAs, DevOps, server/network engineers, architects, and system administrators.Managed thousands of servers utilizing Flexpod/Cisco UCS/NetApp (All Flash), HP Synergy, VMware, Azure, and AWS workspaces.Oversaw the management of thousands of databases and hundreds of instances, ensuring seamless performance and reliability.Efficiently managed storage and backups of more than PB of structured & non-structured data using various solutions like EMC/V-Max/VNX/Centera, NetApp AFF 300, NetApp 8040, Pure M70, M20, NNASUNI Cloud hybrid, Azure storage, Netbackup, Veeam, Quantum tape libraries, and Azure backups.Took charge of security operations, including vulnerability & patch management, access control, and data protectionLed DevOps and system administration for multiple applications, including in-house developed, as well as ERP/COTS applicationsHeaded the Disaster Recovery (DR) team, spearheading DR planning, architecture, design, recovery processes, RTO & RPO, and conducting annual DR tests.Ensured high availability of revenue-generating mission-critical applications, sites, and portals.Managed OPEX and CAPEX expenses, including vendor contracts and vendor relationships..