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 dis

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