Job Description
Job Title – Senior System Administrator Location: Madurai Experience: 3-5 years Role Overview We are seeking an experienced System Administrator with solid expertise in enterprise IT infrastructure, cloud platforms, and endpoint management. This role requires hands-on experience in managing on-premises and cloud systems, ensuring security and availability, and supporting business continuity through proactive monitoring, configuration, and incident resolution. Key Responsibilities Infrastructure & Cloud Management Manage and monitor servers, storage, and networks across on-premises and cloud (Azure / O365 / other cloud environments). Administer Office 365 services including Exchange Online, SharePoint, Teams, OneDrive, and licensing. Perform user migration and mailbox management between tenants and environments. Security & Access Control Configure and maintain firewall policies, VPNs, and VLANs for secure and optimized access. Implement and monitor endpoint security (antivirus, DLP, EDR/XDR) across the organization. Manage Active Directory (AD), Azure AD,



and Group Policy Objects (GPOs) for access control, security compliance, and user provisioning. Network & System Administration Configure and manage LAN, WAN, VLANs, and VPN connections for seamless connectivity. Troubleshoot networking issues, internet downtime, login failures, and folder access issues . Ensure high availability and performance of file servers, application servers, and database servers . Endpoint & Remote Work Support Oversee endpoint management using MDM/Endpoint Central/Intune for patching, updates, and compliance. Provide technical support for end-users including remote workers (login, access, VPN, printers, system issues). Maintain IT asset lifecycle including allocation, upgrades, and decommissioning. Backup & Disaster Recovery Manage backup schedules (full, incremental, differential) and validate recovery procedures. Ensure business continuity through tested disaster recovery

📌 Senior System Administrator (Coimbatore)
🏢 Optisol Business Solutions
📍 Coimbatore