Job Title – Senior System Administrator

Location: Madurai

Experience: 3-5 years

Role Overview

We are seeking an experienced System Administrator with strong 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 & Work from home 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

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