Windows System Administrator

Innovative Frequency Co

1. Microsoft 365 E5 Administration

* Manage and maintain Microsoft 365 E5 suite, including Exchange Online, SharePoint Online, OneDrive, Teams, Intune, Defender for Office 365, Power Platform, and Security & Compliance Center.


* Configure and enforce security policies, conditional access rules, MFA, DLP, and encryption.


* Oversee license allocation, usage optimization, and renewals.


* Administer advanced Microsoft Defender features and threat protection configurations.


Monitor, troubleshoot, and resolve user or system issues within the M365 environment.


2. Microsoft Azure Administration

* Manage Azure Active Directory (AAD), identity governance, and hybrid identity integration with on-premises AD.


* Provision and administer Azure virtual machines, storage accounts, networking, and security groups.


* Manage Azure Backup, Azure Site Recovery, and disaster recovery plans.


* Implement and maintain Azure Monitor, Log Analytics, and security baselines.


* Optimize cloud costs and resource performance.


3. Windows Server Administration

* Administer and maintain Windows Server environments (2016/2019/2022) in both physical and virtualized (VMware/Hyper-V/Azure) infrastructures.


* Plan, execute, and validate patch management, service packs, and security updates.


* Perform OS upgrades, role configurations, and cluster management.


* Manage Active Directory Domain Services (ADDS), DNS, DHCP, Group Policy, and Certificate Services.


* Troubleshoot complex server, storage, and network-related issues at L3 escalation level.


4. Upgrades, Patching & Security

* Plan and perform scheduled system upgrades with minimal downtime.


* Apply security hardening best practices for all Microsoft workloads.


* Maintain patch compliance for all on-prem and cloud-hosted servers.


* Monitor and respond to security alerts and vulnerability reports.


5. Operational & Performance Management

* Maintain high availability and performance across all Microsoft services.


* Monitor systems and applications for health, capacity, and performance optimization.


* Maintain detailed documentation, runbooks, and SOPs for all tasks and configurations.


* Collaborate with L2 and other teams to provide guidance, escalation handling, and mentorship.