Demo

Exchange Online Administrator

Advance Digital Systems
Washington, DC Remote Contractor
POSTED ON 6/24/2026
AVAILABLE BEFORE 7/23/2026

We are seeking an experienced Exchange Online Administrator to manage and maintain our hybrid Exchange environment, including on-premises Exchange Server and Exchange Online (Microsoft 365). Ensure reliable email services, security, and compliance across the organization.

Position Responsibilities
• Administer and support hybrid Exchange infrastructure (on-premises and Exchange Online)
• Manage mailbox migrations, mail flow, and hybrid connectivity between environments
• Configure and maintain transport rules, DLP policies, retention policies, and email security features
• Monitor system performance, troubleshoot issues, and resolve user email problems
• Implement anti-spam, anti-malware, and threat protection using Microsoft Defender for Office 365
• Manage user provisioning, distribution groups, shared mailboxes, and permissions
• Maintain hybrid synchronization and directory services (Azure AD Connect)
• Execute eDiscovery, legal holds, and compliance investigations
• Document configurations, procedures, and maintain system architecture records
• Provide end-user support and training on email features

Required Technologies
Microsoft Exchange Online & Exchange Server (hybrid environment)
PowerShell (Exchange Online/On-Prem Management)
Microsoft 365 Admin Center & Exchange Admin Center (EAC)
• Azure Active Directory & Azure AD Connect
• Exchange Online Protection (EOP) & Microsoft Defender for Office 365
• DNS, SPF, DKIM, DMARC, mail flow routing

Required Experience
• 4 years managing Exchange environments
• 2 years with hybrid Exchange (on-premises Exchange Online)
• 2 years PowerShell scripting for Exchange administration
• Hands-on experience with mailbox migrations and hybrid deployments
• Email security and compliance implementation

Preferred Qualifications
• Microsoft 365 Certified: Messaging Administrator Associate
• Experience with 500 user environments
• ITIL or service management experience

__________________________________________________________________

No Phone calls Please

Please apply with your resume in a word file including all your contact details

Hourly Wage Estimation for Exchange Online Administrator in Washington, DC
$87.00 to $107.00
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