جاياكومار سرينيفاسان

Jan’17 - Till Now: Kyndryl (IBM India Pvt Ltd), Bangalore as IT Architect

Key Projects:
Design & Execute Cloud Migration - On-perm to AWS migration via Cloud Endure & P-Cloud to Cloud Migration
Disaster Recovery Project - From Petya Ransomware Attack
Migrated various API - SSO authentication from ADFS to Azure.
Implemented system automation & Compliance policy - GPO Implementation.
Windows File Server Failover Cluster Migration 2008 to 2012 & Storage Migration
Windows Security Patching - Migrated to IBM Endpoint Management from legacy tool.
Implemented MS KMS service for License Management

Role:
Maintaining & Supporting all BAU & RFS task associated with 4000+ virtual & physical Intel system residing globally operating customer environment on Hybrid, Private & Public Cloud
Design & Leading AWS Cloud Migration project - Migrating all On-prem to AWS Cloud & between AWS accounts.
Managing Cloud Migrated Infrastructure, VPC, Subnets, EBS, EC2, ELB & etc.
Prepare & Presenting Technical WSR with customer for project progress & delivery status.
Heading a team of 12 members:
o Providing technical expertise to team members on Wintel Infrastructure Support.
o Preparing SOP & Knowledge base technical documents for team member’s future reference.
o Conducting Technical Assessment periodically & line-up team members technical skills by nominating & providing technical trainings.
Acting as technical escalation point for troubleshooting advanced network/systems issues; consistently earned 100% issue-resolution scores by providing excellent service.
Performing Root Cause Analysis on high severity cases & recommending proactive action plan to business and make it implement by following workflow problem & change management.
Heading build request activities - RFS
o Planning for new server build on physical, Virtual Environment & Cloud, also maintaining capacity threshold by performing decommission activities based on business requirement.
o Implementing various server roles based on requirement Azure AD, ADFS, ADDS, DNS, DHCP, SNMP, IIS, WDS, DFS, WSUS, Failover Clustering, File Server (Quota & File Screening) and Print Server for production environment as per requirements
o Expertise on various hardware & respective performance to suggest based on requirement.
Coordinating with various product owners, vendors, suppliers & service providers for different activities such as project implementation, delivery, IT software & hardware service & support claim
Participating Internal & Customer audits, gathering findings, preparing corrective action plan & make sure to implement the same along with team members.
Implemented & Supporting ADFS - SSO & Azure API authentication for various Web Application & API integrated in Azure for Mobile Application by coordinating with Application developers.

Heading a team of 7 members (functionally) in the organization
Leading windows network environment with over 1000+ users, 75+ high availability production servers & 40+ VMWare Virtual Nodes across 15 different remote locations to ensure maximum uptime as per SLA
Installing, configuring & administering:
o Windows 2008 / 2012 Servers with various server roles & features such as ADDS, DNS, DHCP, SNMP, IIS, WDS, DFS, WSUS, Failover Clustering, File Server (Quota & File Screening) and Print Server for production environment as per requirements
o WDS for various OS image creation through WSIM & unattended image installation via PXE Boot
Supervising a domain tree in Windows 2008 / 2012 enterprise environment by promoting DC, RODC & AD Replication; maintaining AD objects such as User Accounts, Computers, Groups, OUs, Mailboxes & GPO
Administering MS Exchange 2007 & 2010 by Mailbox & Mail Contact creation, movement & deletion and configuring Client & Hub Transport roles
Executing & implementing:
o IP Subnets by configuring various DHCP & DNS servers in different VLAN as per project plan
o Virtualization using VMware ESXi Host 5.5, VSphere Client 5.5 & HyperV in Windows Server 2008
o VMWare Virtualization by creating VM, resource allocation & management, VM Snapshot, vMotion & vSwitches management with NLB
o ITIL Standard Tool “SDMS (Service Desk Management System)” such as incident & support call logging and preparation of monthly report
Rendering 3rd level support for server & storage hardware with configuring & troubleshooting RAID (1, 5, 6 & 10)
Securing data back-up & restore on business demand as part of daily activity; working on back-up solution with Veritas Net Back-up Tool and SAN Storage as Member of DR Team
Checking all servers & network resources of performance; reporting to Divisional IT Manger by periodically as part of proactive management and maintaining all services availability > 99.5% as per SLA
Acting as Senior ITA and supervising 7 members of IT Support Team through knowledge sharing, efficient IT support and proactive monitoring services as per SLA
Directing different kinds of aspects including spyware, anti-virus detection and cleaning progress using Kaspersky Security Center
Coordinating with various vendors, suppliers & service providers for different activities such as project implementation, delivery, IT hardware warranty & service claim
Spearheading all activities related to server preventive maintenance, incident, change & problem management, timely auditing & corrective action plan to ensure infrastructure on standard & secured with high availability
Managing the confidentiality with regard to information being processed, stored or accessed by the network


Key Projects Handled:
Design & Implemented DFS & Replication for DR Purpose- Windows 2012
Application Server Migration - Windows Server 2008 to 2012
Design & Configure Squid Proxy - Linux CentOS 7
Windows Deployment Service Implementation
Application & DC Migration - Windows Server 2003 to 2008
Datacenter build & Infrastructure Migration by Supervising Team
Active Directory Migration - AD, User, Computer & Mailbox Migration
DHCP Server Roll-out & Migration
Kaspersky Security Center Administration Server Roll-out
Windows Server File Screening & Quota Management Implementation

Installed, configured & troubleshot Server 2003
Worked on user accounts, groups, print queues and access rights using Active Directory
Led all IT operations like decision making, support and administration at a site of over 200 ‘demanding users’ in a fast paced IT & BPO environment
Managed IP addressing and configured TCP/IP addressing on a server
Acted as Team Lead / In-charge of desktop deployment; supervised ITIL standard service desk using Remedy Tool
Maintained IT Asset using In-house application “Asset Management System” and coordinated with vendor for service & warranty claims
Facilitated back-up administration & on-call support (24x7)

Rendered deployment end user support for Windows XP, MS Office 2007 and other desktop software
Led Windows administration activities involving adding users & printers, removing users & controlling access right list
Directed the creation & testing of PC images using Ghost
Executed a new in-house printing solution including Xerox Multi-functional Copier, Printers, Scanners and Fax
Supported over 250 users in Windows environment and remote users using VPN connectivity
Supervised Web Server & FTP Server Control panel to publish the websites as well as monitor bandwidth & traffic