Vedhapuri K

Senior System Administrator with 14+ years of experience in Windows Server Administration, Microsoft 365, Exchange Online, and Microsoft Entra ID (Azure AD). Expertise in managing hybrid environments, identity and access management (IAM), endpoint security, and cloud-based infrastructure. Proven ability to manage 5000+ users, automate tasks using PowerShell, and implement security solutions including MFA, Conditional Access, and Microsoft Defender.

Specialist - System Management - LTIMindtree Limited

(2022-02 - 2025-12)

• Served as SME for Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive) supporting 5000+ enterprise users
• Managed L2/L3 incidents and reduced ticket resolution time through efficient troubleshooting
• Administered Exchange Online and improved mail flow reliability using Mimecast and security policies
• Investigated and resolved NDR issues, phishing threats, and email delivery failures
• Implemented Conditional Access and MFA using Microsoft Entra ID to enhance identity security
• Managed 3000+ devices using Microsoft Intune including Autopilot deployment and compliance enforcement
• Automated reporting using PowerShell and Graph API, improving operational efficiency
• Participated in client governance calls and SLA reviews

System Administrator - HCL Technologies

(2019-02 - 2022-02)

• Supported Exchange Hybrid and Microsoft 365 environments for enterprise-scale users
• Configured Outlook, mailbox access, and calendar synchronization
• Resolved mail flow issues including spam filtering, NDR errors, and latency issues
• Monitored secure email traffic using IronPort tools
• Improved user satisfaction by delivering timely issue resolution in SLA-driven environment

Senior Engineer - Wintel Admin - Sify Technologies - Chennai

(2015-11 - 2019-01)

• Administered Windows Server and Exchange environments across multiple business units
• Managed Active Directory, Group Policy, DNS, DHCP, and web services
• Integrated on-premises AD with Microsoft Entra ID (Azure AD) in hybrid setup
• Performed root cause analysis (RCA) and reduced recurring incidents

Datacenter Operational Analyst - DELL International Private LTD - Chennai

(2014-08 - 2015-10)

• Managed 1500+ servers using ServiceNow for incident and change management
• Supported Exchange 2010 and Microsoft 365 hybrid environments
• Troubleshot AD sync issues, mail flow problems, and system outages
• Coordinated with Microsoft support teams for critical escalations

IT Support and System Administrator - Various Organizations

(2006 - 2014)

• Administered Windows Server 2003/2008 environments
• Managed Active Directory users, replication, and group policies
• Supported Exchange Server 2010 including mailbox migrations and backups
• Configured SSL certificates and managed email security (blacklist/whitelist)
• Provided IT support for 800+ users across LAN/WAN environments

Bachelor of Engineering - Electrical & Electronics - Sri Muthu Institute of Technology