Hiring: Microsoft Exchange Administrator / Architect RemoteLocation: Remote (USA)Time Zone: PST Working HoursPosition: Exchange Administrator / ArchitectWe are looking for an experienced Microsoft Exchange Administrator / Architect with strong hands-on experience in Exchange Server, Exchange Online, Microsoft 365, and Hybrid Exchange environments.Key Responsibilities: Design, implement, and manage enterprise Exchange environments. Support Exchange Online, Exchange Server, and Hybrid Exchange. Lead Exchange migrations, upgrades, and tenant-to-tenant migrations. Manage mail flow, SMTP, DNS, connectors, and transport rules. Troubleshoot complex Exchange, Outlook, and email delivery issues. Develop PowerShell scripts for automation and administration. Design secure, scalable messaging architecture with high availability and disaster recovery.Required Skills: Microsoft Exchange Server and Exchange Online Hybrid Exchange Architecture and Migrations Microsoft 365 Administration SMTP, DNS, Mail Flow, Connectors, and Transport Rules PowerShell Scripting and Automation Active Directory and Microsoft Entra ID MFA, Conditional Access, and SSO Exchange High Availability and Disaster RecoveryPreferred: Large enterprise Exchange experience Microsoft Defender for Office 365 Tenant-to-Tenant Migration experience Microsoft Exchange / M365 Certifications