On-Site IT Administrator, Guam — 365, Defender & Endpoints

Cabras Marine Corporation

Guam

On-site

USD 60,000 - 75,000

Full time

7 days ago

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Job summary

Cabras Marine Corporation seeks a hands-on IT Administrator to join a small, high-impact IT team in Guam. You will handle day-to-day administration across Microsoft 365, endpoint management, email infrastructure, and user support while helping maintain security and compliance.

You will manage Microsoft 365/Exchange Online, Intune, Entra ID, Defender for Endpoint, and legacy email hosting during the transition.

Qualifications

2+ years of IT administration or systems support experience.
Experience supporting Windows 10/11 and macOS, including device enrollment and connectivity issues.
Familiarity with Intune and Entra ID (Azure AD).

Responsibilities

Administer Microsoft 365 and Exchange Online, including user lifecycle, licensing, mailboxes, shared mailboxes, and distribution groups
Manage Windows devices through Intune, Entra ID, and Autopilot, including enrollment, compliance policies, configuration profiles, and app deployment
Monitor and respond to alerts in Microsoft Defender for Endpoint
Support legacy cPanel/WHM email hosting during migration to Exchange Online
Maintain email authentication and deliverability (SPF, DKIM, DMARC)
Support Windows Server administration, including licensing, patching, and backups
Provide Tier 1 and Tier 2 support to users across offices and vessels
Document procedures to support CMMC and DFARS audit evidence
Coordinate with vendors, ISPs, and telecom providers on service issues and billing