Senior Microsoft 365 Migration & Client Solutions Engineer

Hamilton Barnes; Massachusetts; On-site; USD 126,000 - 154,000; Full time

Benefits offered by this job

401k

Health

Dental

Vision

Job summary

Hamilton Barnes is seeking a Senior Microsoft 365 Migration & Client Solutions Engineer to deliver complex migrations and serve as the primary technical contact for customers. The role involves hands-on engineering work, running customer meetings, onsite discovery sessions, and presenting recommendations from kickoff through stabilization.

The ideal candidate will have seven or more years of Microsoft experience, including at least five years administering Microsoft 365 environments, with proven

Qualifications

• 7+ years in Microsoft technologies with 5+ years in Microsoft 365.
• Proven experience independently delivering Microsoft 365 tenant-to-tenant migrations from discovery through cutover and stabilization.
• Strong hands-on knowledge of Exchange Online, Microsoft Teams, SharePoint Online, OneDrive for Business, Microsoft Entra ID, and Conditional Access.
• Proven experience running customer meetings, technical workshops, project status reviews, and customer-facing presentations.
• Exceptional customer service, relationship management, written communication, and verbal communication skills.
• Ability to meet with customers in person and travel to client sites as needed.
• Experience creating migration designs, runbooks, cutover plans, test plans, and customer documentation.
• Strong PowerShell skills and practical experience with Microsoft Graph.

Responsibilities

• Hands-on Microsoft 365 Migration Delivery and management across tenants.
• Execute complex tenant-to-tenant migrations including mergers, divestitures, and domain transitions.
• Perform discovery, readiness assessments, solution design, migration planning, configuration, testing, cutover, validation, and hypercare support.
• Migrate Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams, Teams Voice, and Entra ID workloads.
• Create migration runbooks, cutover plans, rollback procedures, test plans, validation checklists, and customer communications.
• Use tools such as BitTitan MigrationWiz, Quest On Demand Migration, ShareGate, AvePoint Fly, or similar platforms.
• Troubleshoot complex migrations, document decisions, risks, results, and next steps.

Skills

Microsoft 365 administration

Tenant-to-tenant migrations

Exchange Online

Microsoft Teams

SharePoint Online

OneDrive for Business

Microsoft Entra ID

Conditional Access

PowerShell scripting

Microsoft Graph

Tools

BitTitan MigrationWiz

Quest On Demand Migration

ShareGate

AvePoint Fly

Job description

Hamilton Barnes is seeking a Senior Microsoft 365 Migration & Client Solutions Engineer to deliver complex migrations and serve as the primary technical contact for customers. The role involves hands-on engineering work, running customer meetings, onsite discovery sessions, and presenting recommendations from kickoff through stabilization.

The ideal candidate will have seven or more years of Microsoft experience, including at least five years administering Microsoft 365 environments, with proven