Lingeshwaran

Senior System Administrator

Total Environment • Fulltime

Jul 2022 - Present • 3 yrs 10 mos

I am an experienced IT System Administrator and Technical Support Specialist currently working as a Senior Executive in IT since July 2022. In this role, I manage enterprise IT environments, provide end-user technical support, and ensure secure and reliable system operations across Windows, macOS, and Microsoft 365 platforms. My responsibilities include endpoint management, patch deployment, vulnerability remediation, software installation, remote troubleshooting, and IT asset lifecycle management using tools such as ManageEngine Endpoint Central and enterprise antivirus solutions. I also administer Microsoft 365 services including Exchange Online, Teams, OneDrive, and SharePoint, handling user provisioning, mailbox configuration, license management, and access control to support smooth organizational collaboration. I regularly deliver remote desktop support, incident resolution through ticketing systems, PowerShell-based automation, and new-user onboarding, while coordinating with internal teams and vendors to maintain business continuity and service reliability. Key Achievements Maintained secure and compliant endpoint environments through effective patching and threat protection. Improved operational efficiency by automating administrative tasks using PowerShell. Delivered consistent high-quality remote technical support, improving end-user productivity and satisfaction. Streamlined Microsoft 365 user management, licensing, and mailbox configuration processes. Managed accurate IT asset tracking, compliance reporting, and lifecycle control to support audits and cost optimization. Strengthened secure collaboration through SharePoint administration and permission governance. I am committed to providing reliable, secure, and efficient IT support solutions tailored to business and individual needs.