Exchange Online Administrator

Duration: 6+ months
Compensation: $60-70/hr
Location: On-site 1-2 days/week in Seattle, WA
*** U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor or transfer visas at this time. ***
*** No Vendors/3rd parties. ***
We are seeking an experienced Exchange Online Administrator / Service Engineer to design, implement, secure, and support Microsoft Exchange Online within the Microsoft 365 environment. The ideal candidate will have strong hands-on experience in Exchange Online administration, mail flow, security engineering, troubleshooting, automation, and Microsoft 365 security and compliance.
Responsibilities:

• Design, configure, administer, and support Microsoft Exchange Online services.
• Provide L3/SME-level troubleshooting for complex messaging, mail flow, authentication, and delivery issues.
• Manage Exchange Online configurations, including transport rules, connectors, distribution groups, shared mailboxes, and retention policies.
• Implement and manage security controls, including anti-spam, anti-phishing, Microsoft Defender for Office 365, Safe Links, and Safe Attachments.
• Configure and manage SPF, DKIM, DMARC, modern authentication, and mail flow security.
• Lead and support Exchange Online security implementation, migration, and optimization projects.
• Monitor service health, investigate security events, and resolve complex production issues.
• Collaborate with Microsoft support and cross-functional teams to resolve critical service incidents.
• Develop technical documentation, operational procedures, and runbooks.
• Support change management, testing, deployments, and Microsoft 365 governance initiatives.

Requirements:

• 10+ years of experience in IT, with strong hands-on expertise in Microsoft Exchange Online administration and service engineering.
• Expertise in mail flow, transport rules, connectors, and Exchange Online PowerShell.
• Experience implementing Exchange Online security controls and Microsoft Defender for Office 365.
• Strong knowledge of SPF, DKIM, DMARC, modern authentication, and mail flow troubleshooting.
• Experience providing L3/SME-level production support and resolving complex technical issues.
• Experience with Microsoft 365 security, identity integration, and operational governance.
• Strong troubleshooting, communication, and technical documentation skills.

26-01073
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