System Administrator

1 day ago

Chennai, Tamil Nadu, India Everrenew Full time ₹ 6,00,000 - ₹ 18,00,000 per year

Job Title: System Administrator

Location: Head Office, Chennai Perungudi

Department: IT

Experience: 8-10 years

Job Summary:

This position will manage and support our IT infrastructure across multiple sites and will have strong hands-on experience in
Active Directory
,
Microsoft 365
,
Entra ID
,
Endpoint Security
, and
Firewall management
, along with a robust understanding of enterprise communication systems and internal application support.

Key Responsibilities:

1. Active Directory & Identity Management

  • Manage and maintain
    Active Directory
    , user provisioning, de-provisioning, and group policies.
  • Administer
    Microsoft Entra ID (Azure AD)
    for identity and access management.
  • Monitor and enforce security policies, including MFA and conditional access.

2. Microsoft 365 (O365) Administration

  • Manage and support
    O365 mailboxes
    , distribution groups, shared mailboxes, and licenses.
  • Troubleshoot email flow, spam filtering, and mobile device configurations.
  • Coordinate with Microsoft support for escalated issues.

3. Endpoint Security (Sentinel EDR)

  • Deploy and monitor
    Microsoft Defender for Endpoint / Sentinel EDR
    solutions.
  • Respond to endpoint-related threats, alerts, and ensure compliance across devices.

4. Email Security – Barracuda

  • Manage
    Barracuda Email Protection
    for inbound and outbound filtering.
  • Monitor quarantine reports, email delivery issues, and user policy enforcement.

5. Network and Site Coordination

  • Coordinate IT infrastructure and connectivity across
    all office sites
    .
  • Collaborate with vendors/ISPs for uptime, network health, and issue resolution.
  • Monitor and troubleshoot LAN/WAN performance issues.

6. Firewall Administration – FortiGate

  • Manage and configure
    FortiGate firewalls
    including rules, policies, VPNs, and security profiles.
  • Perform regular firewall log reviews and ensure perimeter security.

7. Communication Systems (EPABX)

  • Administer and support
    EPABX
    systems – configuration, call routing, extensions, and voice support.
  • Liaise with telecom vendors for service and maintenance.

8. VIP User Support

  • Provide high-priority, white-glove support for
    executive/VIP users
    for all system-related needs.
  • Ensure quick resolution, minimal downtime, and proactive monitoring.

9. Internal Application Support

  • Support
    internal business applications
    used by various departments.
  • Coordinate with vendors/developers for bug fixes, updates, and enhancements.
  • Assist users with login, access, performance, and usage issues.

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