Mahendiran T

Cloud and Systems Engineer with 4.8+ years of hands-on experience delivering enterprise-grade Microsoft 365 and cloud infrastructure support for global customers. Strong expertise in Exchange Online, SharePoint, Teams, Entra ID (Azure AD), Intune, and OnPrem Active Directory. Proven L2/L3 ownership of critical incidents, migrations, and escalations with consistent SLA adherence.

Experienced in Azure Virtual Desktop (WVD) environments, PowerShell automation, and secure identity-driven infrastructure operations. Actively contributing to reliability, security, and operational efficiency in large-scale environments.

Analyst, AI Cloud 1.0 (M365 & Infrastructure) at Tata Consultancy Services (TCS) (2024-09 – Present)

• Providing end-to-end L2/L3 support for Microsoft 365 tenants supporting global enterprise users.
• Administering Exchange Online, SharePoint Online, Teams, Entra ID, and On-Prem Active Directory environments.
• Resolving high-priority incidents and escalations with consistent SLA compliance and root-cause analysis.
• Executing PowerShell scripts for reporting, bulk user operations, license management, and troubleshooting.
• Managing Microsoft Premier support cases and coordinating with product engineering teams.
• Performing tenant health checks, security reviews, and service optimization activities.
• Creating, monitoring, and troubleshooting Azure Virtual Desktop (Shared & Dedicated) environments.
• Producing weekly/monthly operational and compliance reports using Admindroid Tool and M365 portals.

Client Support at TotalEnergies (2024-09 – 2025-06)

• Executed Exchange Online mailbox migrations for enterprise users with minimal downtime using QuestOnDemand.
• Intune Mobile Authenticator migration, improving identity security, and MFA Authentication.
• Supported incidents, requests, and change management through ServiceNow.

Associate System Administrator at Karya Technologies India Pvt. Ltd. (2021-11 – 2024-08)

• Administered Microsoft 365 with Global Admin privileges across Exchange, SharePoint, Teams, and OneDrive.
• Managed on-prem infrastructure including Windows Servers, Active Directory, GPO, and DHCP.
• Configured and maintained Sophos Firewall rules, VPN access, and endpoint security policies.
• Monitored enterprise infrastructure using PRTG and ManageEngine Endpoint Central.
• Planned, documented, and maintained complete network and server infrastructure.
• Performed system builds, endpoint troubleshooting, patching, and lifecycle management.
• Improved endpoint security posture through proactive patching and antivirus policy enforcement.

B.Tech in Information Technology – Paavai Engineering College, Namakkal (2020)