Job Summary

We are seeking a modern Systems Administrator to manage and secure our hybrid infrastructure spanning on-premises systems, Microsoft 365 (Office 365), Azure, and AWS. This role combines traditional systems administration with robust ownership of security controls, SOC 2 and ISO 27001:2022 compliance, Third-Party Risk Management (TPRM), and coordination with vendors and Cloud Service Providers.

You will ensure the operational health, security posture, and audit readiness of our environment — including Microsoft 365, WatchGuard Firewall, and Seqrite Antivirus — while delivering reliable end-user support and continuous compliance.

Key Responsibilities

Microsoft 365, Cloud & Hybrid Infrastructure Management

Administer, configure, and optimize Microsoft 365 (Office 365) services including Exchange Online, SharePoint Online, OneDrive, Teams, Intune, and related collaboration/security features.
Manage hybrid identity and access through Microsoft Entra ID (Azure AD) integrated with on-premises Active Directory.
Administer infrastructure across Azure and AWS (compute,



storage, networking, identity) as well as on-premises servers, storage, and virtualization platforms.
Provision, harden, and maintain cloud and on-prem resources following least-privilege and security best practices.
Monitor performance, capacity, availability, and costs using native tools (Microsoft 365 Admin Center, Azure Monitor, AWS CloudWatch, etc.).
Automate routine tasks using PowerShell, Graph API, Bash, Python, or Infrastructure-as-Code where applicable.

Network & Perimeter Security

Manage and maintain WatchGuard Firewall appliances and configurations, including rule sets, VPN, intrusion prevention, traffic monitoring, and policy enforcement.
Oversee network infrastructure (routers, switches, wireless access points, VPNs) and troubleshoot connectivity/security issues.
Ensure secure remote access and network segmentation aligned with compliance requirements.

Endpoint & Antivirus Secu

📌 System Administrator (Ahmedabad)
🏢 AiVantage
📍 Ahmedabad