Senior Microsoft Exchange Administrator

# Senior Microsoft Exchange Administrator

**Job Title:** Senior Microsoft Exchange Administrator
**Experience:** 10+ Years
**Location:** USA Onsite
**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.**