About the job
Join our dynamic team at Prime System as a Senior System Administrator - Level III. We are seeking a highly proficient professional with extensive experience in Microsoft Azure, Intune, Entra ID, Active Directory, Microsoft 365, virtualization, patch management, and advanced infrastructure/network troubleshooting. In this role, you will be responsible for maintaining, optimizing, and securing our enterprise systems, ensuring high availability across all infrastructure components.
Key Responsibilities
Cloud & Identity Management
- Administer, configure, and optimize Microsoft Azure services including VMs, storage, networking, identity, and security.
- Manage Entra ID (Azure Active Directory) with a focus on conditional access policies, SSO, MFA, identity governance, and role-based access.
- Design, deploy, and maintain Intune/Endpoint Manager policies to ensure device compliance, security baselines, app deployment, and autopilot provisioning.
Microsoft 365 Administration
- Administer Exchange Online, SharePoint Online, Teams, OneDrive, and the M365 security/compliance center.
- Implement and enforce M365 governance, retention policies, and DLP standards.
On-Premises Infrastructure
- Maintain and support Active Directory, GPOs, DNS, DHCP, and domain controllers.
- Manage and troubleshoot virtualized environments (Hyper-V or VMware).
- Oversee patch management for servers, endpoints, and cloud environments.
Network & Infrastructure Troubleshooting
- Provide advanced Level 3 support for network, server, and endpoint issues.
- Troubleshoot connectivity, performance, authentication, and security incidents.
- Collaborate with network/security teams on complex problems and escalations.
Security & Compliance
- Implement best practices for system hardening, identity protection, and endpoint security.
- Monitor system performance, audit logs, and security alerts to ensure compliance.
Project Implementation
- Lead initiatives related to cloud adoption, modernization, and infrastructure upgrades.
- Document technical processes, architecture diagrams, and standard operating procedures.

