Active Directory & Microsoft 365 Tenant Migration Consultant

New York, NY, US • Posted 9 hours ago • Updated 9 hours ago

Full Time

On-site

USD $70.00 - 80.00 per hour

Fitment

Dice Job Match Score™

👤 Reviewing your profile...

Job Details

Skills

Data Integrity
Authentication
Licensing
Collaboration
GPO
Distribution
Sharepoint Online
Microsoft Outlook
Electronic Discovery
Auditing
Data Security
Testing
Test Plans
Acceptance Testing
Knowledge Transfer
Reporting
Active Directory
DS
DirectShow
Group Policy
Cloud Computing
Microsoft Exchange
SMTP
DNS
Dragon NaturallySpeaking
Routing
SPF
Windows PowerShell
Scripting
Regulatory Compliance
Legal
DLP
Multi-factor Authentication
Documentation
Microsoft Office
Microsoft
Microsoft Azure
Mergers and Acquisitions
Quest
Microsoft SharePoint
Migration
Communication
Change Management
TCM
DICE

Summary

JOB TITLE: Active Directory & Microsoft 365 Tenant Migration Consultant
JOB LOCATION: Full Remote
WAGE RANGE*: $70-80/hr.
JOB NUMBER: 26-00098

JOB DESCRIPTION

(M&A Integration / Tenant Consolidation)
1. Background
An acquiring organization has purchased another organization. Both currently operate separate Active Directory (AD) environments and Microsoft 365 (Office 365) tenants. The objective is to:

Consolidate the acquired organization's AD into the acquiring organization's AD.
Migrate/merge the two Microsoft 365 tenants into a single target tenant.
Ensure that users from the acquired organization send and receive email using the acquiring organization's primary email domain (e.g. @company.com).

An external expert/consultant (or small specialist team) is required to design and execute this transition endtoend.
2. Objectives

Establish a single, unified identity and collaboration environment under the target AD and Microsoft 365 tenant.
Migrate users, groups, mailboxes, and associated workloads from the source environment with minimal business disruption.
Implement email domain consolidation so that users from the acquired organization use the new corporate email domain as their primary address.
Maintain security, compliance, and data integrity throughout.

3. Scope of Work / Key Responsibilities
Discovery & Design

Assess current environments for both organizations, including:
- Onpremises AD forests/domains, trusts, Group Policies, OU structure.
- Azure AD / Entra ID configuration and synchronization (e.g., AAD Connect / Cloud Sync).
- Microsoft 365 tenants (Exchange Online, OneDrive, SharePoint, Teams, security & compliance).
Document current identity, authentication, mail flow, and DNS configurations.
Define the targetstate architecture:
- Target AD structure (OU design, GPO strategy, group strategy).
- Target Microsoft 365 configuration and licensing alignment.
- Target email domain strategy (primary SMTP, aliases, replyto behavior).
Produce a detailed migration strategy and runbook:
- Phased vs. bigbang migration.
- Coexistence strategy (GAL sync, mail routing, crosstenant collaboration if needed).
- Rollback/contingency plans.

Active Directory Integration

Plan and execute migration of source AD objects into the target AD:
- Users, groups, service accounts, and (if in scope) devices and GPOs.
- Preserve access rights and group memberships where required.
Implement appropriate trusts or temporary coexistence configurations during transition.
Align UPN suffixes and logon formats with target standards (including new corporate email domain where applicable).
Optimize AD for longterm manageability and security (e.g., delegated admin model, GPO hygiene).

Microsoft 365 TenanttoTenant Migration

Plan and execute tenanttotenant migration (source ? target) for:
- Exchange Online mailboxes, shared mailboxes, and distribution lists.
- OneDrive for Business content.
- SharePoint Online sites and permissions.
- Microsoft Teams (teams, channels, chats, meetings where in scope).
Select and configure appropriate migration tools (e.g., Quest, BitTitan, ShareGate, native crosstenant mailbox migration).
Implement coexistence as required:
- Address book (GAL) visibility between organizations during transition.
- Crosstenant calendar sharing and meeting interoperability (if needed).
Coordinate DNS changes (MX, Autodiscover, SPF, DKIM, DMARC) to support the consolidated tenant and target email domain.

Email Domain Consolidation

Design and implement the transition so that users from the acquired organization send and receive email using the target corporate domain:
- Configure primary SMTP and alias addresses.
- Update Outlook profiles and mobile clients as needed.
- Ensure mail flow continuity for legacy domains (aliases and forwarding).
Validate internal and external mail routing, reply behavior, and display names postcutover.

Security, Compliance, and Governance

Ensure retention policies, legal holds, eDiscovery, and audit requirements are preserved during migration.
Align security baselines to target organization standards (MFA, conditional access, device compliance, privileged access).
Validate compliance with applicable regulatory, audit, and dataprotection requirements.

Testing, Cutover & Support

Develop and execute test plans (pilot migrations, UAT with selected user groups).
Perform production cutovers (potentially in waves by site, department, or region).
Provide hypercare support immediately postmigration, including:
- Troubleshooting identity, access, and email issues.
- Finetuning DNS, mail flow, and client configurations.
Produce asbuilt documentation and knowledgetransfer materials for internal IT teams.

4. Deliverables

Discovery & assessment report of both existing environments.
Target architecture and detailed migration design.
Migration runbook including:
- Stepbystep technical procedures.
- Rollback plan and risk log.
Configured AD and Microsoft 365 environments as per design.
Completed migration of inscope users, groups, mailboxes, and workloads.
Verified primary use of the target corporate email domain for all inscope users.
Final asbuilt documentation and handover session(s) with internal IT.

5. Required Skills & Experience
Vendors should propose consultants who meet most or all of the following:

7+ years of handson experience with:
- Active Directory (AD DS), Group Policy, AD migrations.
- Azure AD / Microsoft Entra ID, synchronization tools (AAD Connect / Cloud Sync).
- Microsoft 365 (Office 365) - especially Exchange Online, OneDrive, SharePoint, and Teams.
Proven track record of at least two Microsoft 365 tenanttotenant migrations, ideally in an M&A context.
Demonstrated experience in AD forest/domain consolidations.
Strong experience designing and running complex email/domain migrations:
- SMTP namespace consolidation.
- DNS and mail routing (MX, SPF, DKIM, DMARC).
Proficiency in PowerShell scripting and automation for Microsoft 365 and AD.
Solid understanding of Microsoft 365 security and compliance (retention, legal hold, DLP, conditional access, MFA).
Excellent documentation and communication skills; able to work with both technical IT staff and nontechnical stakeholders.
Relevant Microsoft certifications (strongly preferred), e.g.:
- Microsoft 365 Certified: Administrator Expert.
- Microsoft Certified: Identity and Access Administrator Associate.
- Related Azure and/or security certifications.

6. NicetoHave Experience

Prior work with large, global enterprises and complex multisite environments.
Experience in M&A integrations and IT carveouts.
Familiarity with specific migration tools (Quest, BitTitan, ShareGate, etc.) and crosstenant Teams/SharePoint migrations.
Experience supporting user communication and changemanagement for similar projects.

Equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities

* While an hourly range is posted for this position, an eventual hourly rate is determined by a comprehensive salary analysis which considers multiple factors including but not limited to: job-related knowledge, skills and qualifications, education and experience as compared to others in the organization doing substantially similar work, if applicable, and market and business considerations. Benefits offered include medical, dental and vision benefits; dependent care flexible spending account; 401(k) plan; voluntary life/short term disability/whole life/term life/accident and critical illness coverage; employee assistance program; sick leave in accordance with regulation. Benefits may be subject to generally applicable eligibility, waiting period, contribution, and other requirements and conditions. Benefits offered are in accordance with applicable federal, state, and local laws and subject to change at TCM's discretion.

#Dice #IND1

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: cxtcml
Position Id: 26-00098
Posted 9 hours ago

Create job alert

Never miss an opportunity! Create an alert based on the job you applied for.

Active Directory & Microsoft 365 Tenant Migration Consultant

Dice Job Match Score™

Job Details

Skills

Summary

Similar Jobs