R Senthil
Infra & Cloud Security
Chennai
Summary
IT Professional with over 20 years of total experience, including 3+ years in Azure Active Directory (Azure AD) and Identity and Access Management (IAM). Expertise in designing, implementing, and managing secure identity solutions to optimize user access while maintaining compliance and security standards.
Overview
21
21
years of professional experience
6
6
Certifications
Work History
Infra. Technology Specialist
Cognizant Technology Solutions
5 2021 - Current
- Led a team in conducting security assessments, resulting in the identification and mitigation of key vulnerabilities.
- Azure AD configuration and management
- I am strategy development and execution.
- Multi-Factor Authentication (MFA) and Conditional Access implementation.
- Security policies and governance frameworks.
- Integration of cloud services with on-premises infrastructure.
- Security assessments and risk management.
- Incident response and mitigation strategies, Leadership in cross-functional team collaboration.
- Spearheaded the implementation of Azure AD, improving identity management processes and reducing security risks.
- Designed and enforced IAM policies, achieving compliance with industry regulations and enhancing operational efficiency.
- Implement and maintain security policies related to privileged access in CyberArk.
- Regularly update and patch CyberArk systems to ensure they are secure and up-to-date.
- Configuring and monitoring identity protection and governance policies.
- Designed and implemented Single Sign-On (SSO) solutions using Azure AD for various enterprise applications, improving user experience and reducing password fatigue.
Professional2- System Administrator
DXC Technology India Pvt Ltd.
10.2010 - 05.2021
- Managing VMware infrastructure environment with 2,900 ESXi servers and 45 vCenter.
- Installing, configuring, and managing VCenter environment.
- Actively involved in the Server Provisioning team for building the ESXi servers 6.0, 6.5, 6.7, and Vcenter Servers 6.0, 6.5, 6.7.
- Deployment of ESXi upgrade from 5.5 to 6.5 and 6.7.
- Upgrading Virtual Center Servers from 6.0 to 6.5 and 6.7.
- Configured DRS and HA clusters.
- Installed and configured VMware Update Manager.
- Installing patches on ESXi servers using VMware Update Manager.
- Experience on Virtual Switch, VMotion, svMotion, permissions, Patches, Snapshots, Tools Upgrade, disk expansions, and Templates.
- Installing, upgrading firmware in ESXi servers on different hardwares (Dell, IBM, and Cisco).
- Performing health checks for the ESXi and Vcenter with the help of VROPS on a daily basis.
- 2900+ ESXi with the standard switch has been migrated to the latest vCenter without impacting the existing environment.
- Involved in Decommission project, as per the change.
- Configure the LUNs with the VMware ESXi host as Datastores, as per the request.
- Involved the creation of project documentations to handover the build servers to support team with infrastructure info, servers' specs info, network info, etc.
- Troubleshooting the servers when they are required during the migration.
- As a team player, I coordinated with multiple teams to get the requirements done within the planned time span.
- (Storage, Backup, Security and Network)
- Touch with onsite people to get input to perform the task and discussion and report to them on the status.
System Administrator
HCL Infosystems Limited
11.2009 - 09.2010
- Administration and maintain Active Directory Services, DNS, Proxy server
- Configured Apache Tomcat/IIS for Websites accessed over internet
- Installed and Configured CA Secure Content Manager for internet gateway, Spam and Proxy content filtering
- Configured Microsoft ISA for Proxy Cache
- Configured Windows Software Update Service for patch management for all servers and desktops
- Prepared Backup Application Server for GOIR, FMS, Kmbank, Gazette, Attest applications
- Provided File Server access using security groups
- Vendor Management for all Client related hardware.
System Administrator
Victory Visions technologies Pvt limited
01.2004 - 10.2009
- Managing 100+ Desktops and Laptop
- Resolving Hardware and Network related problems
- Create and manage user accounts, home directories and other resources
- Managing users systems including Laptops and Desktops, network and locally attached Printers
- Troubleshooting of operating system, network and application related problems
- Configured Microsoft outlook & outlook express mail clients for various departments
- Configured remote desktop services for providing technical support for desktop users.
Education
Skills
Cloud Computing Expertise
Cybersecurity Management
Information Security
Certification
Microsoft Certified System Administrator (MCSA - Windows 2003)
Disclaimer
I consider myself familiar with Computer Aspects. I am also confident of my ability to work in a team. I hereby declare that the information furnished above is true to the best of my knowledge.
Personal Information
- Father's Name: R Rajaram
- Date of Birth: 01/01/1980
- Gender: Male
- Nationality: Indian
- Marital Status: Married
Timeline
Professional2- System Administrator
DXC Technology India Pvt Ltd.
10.2010 - 05.2021
System Administrator
HCL Infosystems Limited
11.2009 - 09.2010
System Administrator
Victory Visions technologies Pvt limited
01.2004 - 10.2009
Infra. Technology Specialist
Cognizant Technology Solutions
5 2021 - Current