Technology Lead, Infosys Limited (July 2013 to October 2022)
Migrated, consolidated and modernised infrastructure across 7 US sites and 6 global data centres: over 150 ESXi hosts and over 1,500 Windows servers.
A large enterprise needed to consolidate and modernise its data centres, with legacy servers, mixed storage platforms and strict availability targets.
I managed the vSphere lifecycle, including DRS, HA, vSAN, vCenter upgrades, distributed switches, Aria Operations and Site Recovery Manager. Physical and virtual machines moved with P2V and V2V migrations, including legacy Windows 2003 servers. I kept disaster recovery documentation and failover procedures current and tested for every site.
P2V consolidation of over 800 physical servers onto VMware vSphere reduced the hardware footprint and licensing costs and made the estate simpler to manage.
The programme covered 7 US sites and 6 global data centres, over 150 ESXi hosts and over 1,500 Windows servers, running on platforms such as Cisco UCS vBlock, Dell VxRail, NetApp and EMC.
Designed and administered Exchange 2013, 2016 and 2019 hybrid with DAG alongside over 70,000 Microsoft 365 mailboxes at 99.5 percent uptime.
A repeatable patching process for servers and end-user devices that met compliance deadlines and closed an audit gap.
Moved over 300 enterprise applications from ADFS to Microsoft Entra ID single sign-on, using SAML, OAuth, OIDC and SCIM, and retired the ADFS infrastructure.