Raghavan S

Raghavan S Email and Phone Number

Cloud Architect @ Cognizant
teaneck, new jersey, united states
Raghavan S's Location
Chennai, Tamil Nadu, India, India
About Raghavan S

13+ years in Architecting & System administration, with core expertise on Microsoft Azure, Windows, VMware, and Active Directory

Raghavan S's Current Company Details
Cognizant

Cognizant

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Cloud Architect
teaneck, new jersey, united states
Website:
cognizant.com
Employees:
278214
Raghavan S Work Experience Details
  • Cognizant
    Infrastructure Architect
    Cognizant Jan 2021 - Present
    Chennai, Tamil Nadu, India
    Responsible for producing part or all of the technical solution for the account/client, in accordance with an agreed technical design.Deployments, Maintenance and troubleshooting applications on Microsoft Cloud Infrastructure Azure as per RequirementDefined and configured VNET and Subnet based on logical diagram in Production and Nonproduction.Automated Image Creation Using Packer.Azure deployments using PowerShell like NSG, VPN gateways, Key vaults, Subnets, Recovery Vaults, and ASG.Deploying and configuring Azure PAAS Services like Azure SQL, WebApp & API Management Services.Created ARM Template for fully automated VM deployment including Post provisioning stepsCreating Custom RBAC role based on Client requirements.Deploying Infrastructure as a Code using Terraform.Creating Custom Azure Policies as per Security Guidelines (Tags, NSG, Subnets, express route regions)Created a complete POC for File Server migrating to Cloud using Azure File Storage and File Sync and Azure NetApp Files including architecture.Setting up Azure Sentinel and Integrating with Azure Services with several connectors and integrating Alerts to Service Now with Playbook.Configured pipelines on Azure Devops for VM and other services deployment on azureCreated Parameterized ARM Template based on Customer Infra for simplified deployment in line with Client Security Policies across locations.Configured a Disaster Recovery environment for application using Azure PAAS Services and Azure traffic manager.Have configured Kubernetes Clusters using AKS & IAAS Services on a test/dev environmentHave created custom KQL Queries for Custom Alerting requirement on Log Analytics & Azure SentinelConfigured a Solution on azure using Cognitive Services & FunctionAPP for a Hackathon program.Configured Azure AD using Azure AD Domain Services and setup a test & Development Environment on Azure.Configured Both Public and Private Load Balancer for various requirements.
  • Cognizant
    Infrastructure Team Lead
    Cognizant Oct 2016 - Jan 2021
    Chennai Area, India
    Responsible for producing part or all of the technical solution for the account/client, in accordance with an agreed technical design.Deployments, Maintenance and troubleshooting applications on Microsoft Cloud Infrastructure Azure as per RequirementDefined and configured VNET and Subnet based on logical diagram in Production and Nonproduction.Automated Image Creation Using Packer.Azure deployments using PowerShell like NSG, VPN gateways, Key vaults, Subnets, Recovery Vaults, and ASG.Deploying and configuring Azure PAAS Services like Azure SQL, WebApp & API Management Services.Created ARM Template for fully automated VM deployment including Post provisioning stepsCreating Custom RBAC role based on Client requirements.Deploying Infrastructure as a Code using Terraform.Creating Custom Azure Policies as per Security Guidelines (Tags, NSG, Subnets, express route regions)Created a complete POC for File Server migrating to Cloud using Azure File Storage and File Sync and Azure NetApp Files including architecture.Setting up Azure Sentinel and Integrating with Azure Services with several connectors and integrating Alerts to Service Now with Playbook.Configured pipelines on Azure Devops for VM and other services deployment on azureCreated Parameterized ARM Template based on Customer Infra for simplified deployment in line with Client Security Policies across locations.Configured a Disaster Recovery environment for application using Azure PAAS Services and Azure traffic manager.Have configured Kubernetes Clusters using AKS & IAAS Services on a test/dev environmentHave created custom KQL Queries for Custom Alerting requirement on Log Analytics & Azure SentinelConfigured a Solution on azure using Cognitive Services & FunctionAPP for a Hackathon program.Configured Azure AD using Azure AD Domain Services and setup a test & Development Environment on Azure.Configured Both Public and Private Load Balancer for various requirements.
  • Ibm
    Technology Services Specialist
    Ibm Jan 2015 - Oct 2016
    Bengaluru Area, India
    Responsibilities• Providing end to end Support and Implementation on major VMware products (Vcenter, ESXi, Vcops , SRM)• Configuring & Troubleshooting Cisco UCS infrastructure on 4 Datacenters(UCSM & UCS Central)• Customizing and automating reports through power cli scripting• Handling Major incidents with co-ordination with other platforms & providing RCAs when necessary• Troubleshooting esxi issues like storage , network and management• Maintaining Patch compliance across all esxi hosts with update manager.• Troubleshooting and health check on vcenters• Firmware upgrade and driver upgrades on esxi hosts on ( HP & Cisco UCS )• Troubleshooting guest OS performance issues• Configuring Service profiles for new esxi builds on Cisco UCS• Performing P2V and V2V migrations using standalone converter• Taking Snapshot and recovering VMs using snapshots before major Application changes.• New ESX Builds based on requirement• Configuring DRS affinity rules based on Cliet requuirement• Creating and modifying VM templates for build team• Health Checks on Data store and Cleanups whenever• Configuring and troubleshooting on Vmware Site Recovery Manager 5.5• Troubleshooting Vcenter Operations Manager 5.8 issues.Achievements on Current Project• Completed a POC on Service Profile migration from Local UCSM to UCS Central Global Profile.• Completed Successful implementation of Site Recovery Manger 5.5 and documented the same as per client requirement.• Upgraded vCOPs to 5.8.5• Upgraded UCS Manger firmware for 4 Sites from 2.21d to 2.23f• Upgraded over 70 esxi from various versions to 5.5.• Got Spotlight recognition award from Client for resolving Lync Infrastructure performance issues• Got Certification of Appreciation for outstanding contribution towards overall account support
  • Csc
    Senior Engineer System Administration
    Csc May 2012 - Jan 2015
    Chennai Area, India
    • Globalized Wintel and VMware Support for CSC Clients (1500 Servers)• Citrix Xenapp Support (6.5) for existing farms and New Farm Build• Building Virtual servers on Cloud environment using vCloud Director• Co-ordination with Client & Project managers and building new environments (Virtual & Physical)• Managing Windows 2008 Clusters• Proactive Base lining of Firmware on Windows Servers• Maintaining OS Patch compliance through shavlik.• Troubleshooting on Blade enclosures (HP, IBM & Cisco UCS)• Implementing new requirements through change management• Resolving Problem tickets and providing RCA on Major incidents.
  • Wipro Infotech
    Engineer Server Management
    Wipro Infotech Jan 2010 - May 2012
    Chennai
    • Windows 2008 Active Directory Administration • Installing and Managing Virtual Servers using Hyper V• Managing Windows 2008 Clusters• IIS administration.• Backup Administration using VERITAS Netbackup & Symantec backup exec• Mail administration using Microsoft Exchange 2010• Managing Virtual Servers using SCVMM• Terminal Servers Administration• Patch management using bigfix• Backup activities in SQL & Oracle DB Servers• File & Application Server maintenance
  • Nebula Computer Services
    Customer Service Executive
    Nebula Computer Services Oct 2007 - Dec 2009
    Chennai
    • Handling Team of Antivirus Admins in Chennai Location.(Team Size 4)• Handling First level of troubleshooting for location servers like, DNS , AD, SCCM & Exchange servers• Responsible for the location Backup operations• Responsible for the location Data centre operations• Handling Team for Desktop Support Engrs in CDC-1,3 & WIPRO (Team of 6) • Installing, Maintaining & Troubleshooting of Antivirus Servers.• L1 network support like basic troubleshooting in all networking devices• Maintaining Location Servers like DHCP,IIS & Print Servers• First Level troubleshooting Critical devices like Wi-Fi Access point ,Cisco Switches• Review of SCCM reports and Checking Patch Compliance levels• Supporting the ODC’s for the maintenance of the systems (Windows 2000/03/Red hat Linux/Notebook support).
  • 360 Degree Solutions
    System Admin & Online Product Publisher.
    360 Degree Solutions Dec 2004 - Sep 2007
    Chennai
    Web designing, Web publishing, Maintaining Small Work station

Raghavan S Education Details

Frequently Asked Questions about Raghavan S

What company does Raghavan S work for?

Raghavan S works for Cognizant

What is Raghavan S's role at the current company?

Raghavan S's current role is Cloud Architect.

What schools did Raghavan S attend?

Raghavan S attended University Of Madras.

Who are Raghavan S's colleagues?

Raghavan S's colleagues are Roshan Gawande, Karishma Sulthana, Aishwarya Hampalle, Gouravva Patil, Karthick Kalinrathinam, Geethika Kandula, Birendra Panika.

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