Senior Microsoft Exchange Administrator

Senior Microsoft Exchange Administrator
Job Title: Senior Microsoft Exchange Administrator
Experience: 10+ Years
Location: USA – Remote
Duration: 6+ Months Contract
Employment Type: Contract – C2C
Work Authorization: H1B, GC, USC, EAD
Interview: Video Interview

Job Description
We are looking for a highly experienced Senior Microsoft Exchange Administrator with 10+ years of hands-on experience managing enterprise messaging environments. The ideal candidate will have strong expertise in Microsoft Exchange Server, Exchange Online, Microsoft 365, Hybrid Exchange, Active Directory, Entra ID, PowerShell, and enterprise email security.

The consultant will be responsible for administration, migration, troubleshooting, security, performance, and ongoing support of large-scale Exchange and Microsoft 365 environments.

Key Responsibilities
Administer and support large enterprise Microsoft Exchange Server and Exchange Online environments.
Manage and troubleshoot Hybrid Exchange configurations between on-premises Exchange and Microsoft 365.
Perform mailbox provisioning, migrations, deprovisioning, permissions, shared mailboxes, distribution groups, and resource mailboxes.
Manage Exchange Online, Exchange Admin Center (EAC), Microsoft 365 Admin Center, and related services.
Troubleshoot complex mail-flow, SMTP, transport, routing, delivery, and authentication issues.
Configure and manage Send/Receive Connectors, Transport Rules, Accepted Domains, Remote Domains, and mail-flow policies.
Perform message tracing and email-flow analysis using Exchange Online and Microsoft 365 tools.
Develop and maintain PowerShell scripts for Exchange administration, reporting, automation, and bulk operations.
Administer and troubleshoot Active Directory, Microsoft Entra ID, and Entra Connect/Azure AD Connect synchronization.
Manage and troubleshoot Exchange Online Protection (EOP) and Microsoft Defender for Office 365.
Configure and troubleshoot SPF, DKIM, DMARC, DNS, MX records, and other email security components.
Support Exchange migrations, upgrades, patching, DAGs, high availability, and disaster recovery.
Monitor Exchange infrastructure and proactively identify performance, availability, and capacity issues.
Support Microsoft 365 security and compliance requirements, including retention, litigation hold, eDiscovery, DLP, and mailbox policies.
Troubleshoot Outlook, Outlook Web Access (OWA), mobile email, authentication, and client connectivity issues.
Work closely with infrastructure, security, networking, and application teams during production incidents and major changes.
Create technical documentation, operational procedures, and knowledge-base articles.
Participate in 24×7 on-call / production support as required.
Required Technical Skills
10+ years of experience in Microsoft Exchange Administration.
Extensive hands-on experience with Exchange Server 2016/2019.
Strong experience with Exchange Online / Microsoft 365.
Strong hands-on experience with Hybrid Exchange environments.
Advanced PowerShell scripting and automation.
Strong knowledge of Active Directory and Microsoft Entra ID.
Experience with Azure AD Connect / Microsoft Entra Connect.
Strong understanding of SMTP, DNS, MX, SPF, DKIM, and DMARC.
Experience with Exchange Connectors, Transport Rules, Mail Flow, Message Trace, and SMTP troubleshooting.
Experience with Exchange Online Protection (EOP) and Microsoft Defender for Office 365.
Experience with Exchange migrations and tenant-to-tenant migrations.
Strong troubleshooting skills in enterprise production environments.
Experience working with large user/mailbox environments.
Preferred Skills
Microsoft 365 administration.
Microsoft Purview / Microsoft 365 Compliance.
Exchange security and compliance.
Microsoft Defender for Office 365.
PowerShell automation.
Exchange DAG / high availability.
Azure administration.
ServiceNow or similar ITSM tools.
Enterprise monitoring tools.
ITIL processes.
Candidate Profile
The ideal candidate should have:

10+ years of overall Exchange Administration experience.
Strong recent experience with Exchange Online and Microsoft 365.
Extensive Hybrid Exchange experience.
Excellent PowerShell scripting skills.
Experience supporting enterprise production environments.
Strong communication and troubleshooting skills.
Ability to work independently and coordinate with distributed infrastructure and application teams.
C2C Submission Requirements
Please provide the following information along with the resume:

Full Name:
Phone:
Email:
Current Location:
Relocation Preference:
Total IT Experience:
Relevant Exchange Experience:
Exchange Online Experience:
Hybrid Exchange Experience:
PowerShell Experience:
Microsoft 365 Experience:
Work Authorization:
Visa Validity:
Availability:
C2C Rate:
LinkedIn Profile:
Two Professional References:
Please submit only candidates who have strong hands-on enterprise Exchange Administration experience and are available for C2C engagement.