Microsoft 365 Migration Engineer

Adactin; Sydney; On-site; AUD 90,000 - 130,000; Full time

Job summary

Adactin Group is seeking a Microsoft 365 Tenant-to-Tenant Migration Engineer to configure, execute and support tenant divestiture migrations across Exchange Online, SharePoint Online, OneDrive for Business and Teams.

You will follow and improve migration plans, runbooks and cutover strategies, manage migration tooling, perform mailbox and workload mappings, and coordinate with project managers, engineers and client stakeholders to minimise business disruption and deliver a seamless end-user

Qualifications

• Experience with Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams.
• Experience with Microsoft Entra Connect (Azure AD Connect) and hybrid identity environments.
• Understanding of Exchange Online mail flow and coexistence in multi-tenant migrations.

Responsibilities

• Follow and improve migration plans/checklists, waves, runbooks, cutover plans, and rollback procedures.
• Execute pilot, pre-stage, delta, and production migration activities; manage migration tooling.
• Perform user, group, mailbox, and workload mappings between source and target environments.
• Assist end users with issues and provide local support during migration.
• Monitor migration progress and coordinate remediation with 3rd level support.
• Coordinate with Project Managers, Technical Leads, Engineers, Service Desk and client stakeholders.
• Provide post-migration support and troubleshooting for Outlook, Teams, SharePoint, OneDrive, and devices.

Skills

Exchange Online

SharePoint Online

OneDrive for Business

Microsoft Teams

Microsoft Entra ID

Active Directory

Azure AD Connect

PowerShell

Tools

AvePoint Fly

Quest

BitTitan

Microsoft Intune

Microsoft Planner

Microsoft Loop

Job description

Adactin is a Sydney-headquartered IT consulting and technology services company with more than 15 years of successful operations. With offices across major Australian cities and New Zealand, we continue to expand our presence across APAC and international markets.

Our expertise spans four key service pillars: Microsoft Services, AWS Cloud Engineering, AI and Quality Engineering. We help enterprise and government clients deliver complex technology modernisation and digital transformation programs.

About Role :

The Microsoft 365 Tenant-to-Tenant Migration Engineer is responsible for configuring, executing, and supporting Microsoft 365 migration projects involving a tenant divestiture. The role focuses on delivering successful migrations of Microsoft 365 workloads, devices, and collaboration platforms while ensuring minimal business disruption and a positive end-user experience.

Key Responsibilities

Discovery & Planning

• Follow and improve migration plans/checklist, migration waves, runbooks, cutover plans, and rollback procedures.

Migration Delivery

• Execute pilot, pre-stage, delta, and production migration activities.
• Manage Microsoft 365 migration tooling.
• Perform user, group, mailbox, and workload mappings between source and target environments.
• Assist end users with issues and provide local support related to migration activities.
• Monitor migration progress, investigate issues, and coordinate remediation activities with 3rd level support.
• Support migration cutovers and post-migration validation activities.
• Be flexible to working outside of local business hours to support critical business activities.
• Strong understanding on coexistence strategies for resource access across MS AD Domain and cross tenant.
• Support Active Directory and Microsoft Entra ID migration activities.
• Support migration of Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams, Microsoft 365 Groups, and related collaboration workloads.
• Support endpoint migration activities including Microsoft Intune enrolment, device readiness, compliance validation, and user onboarding.
• Validate mailbox access, permissions, Teams access, SharePoint access, OneDrive content, and device functionality following migration.
• Use vendor provided tooling to migrate devices as-is both in Hybrid and non-hybrid scenarios, e.g. AvePoint Fly.

Stakeholder Coordination & Communication

• Coordinate daily and weekly migration activities with Project Managers, Technical Leads, Engineers, Service Desk teams, and Client stakeholders.
• Participate in project meetings, migration planning workshops, status reviews, and cutover planning sessions.
• Provide regular progress updates, migration status reports, issue tracking, risk identification, and remediation updates to internal and external stakeholders.
• Collaborate closely with customers, vendors, and delivery teams to ensure successful migration outcomes.
• Provide input into end-user communications, migration readiness activities, and hypercare coordination.
• Provide post-migration support for users and other onsite support teams.
• Troubleshoot issues relating to Outlook, Teams, OneDrive, SharePoint, mail flow, permissions, devices, applications and user access.
• Maintain migration documentation, issue registers, reporting, and operational handover material.

Required Skills & Experience

• Experience with Exchange Online, SharePoint Online, OneDrive for Business, Microsoft Teams, Microsoft Entra ID, and Microsoft Active Directory.
• Experience with Microsoft Entra Connect (Azure AD Connect) and hybrid identity environments.
• Understanding of Exchange Online mail flow, and messaging concepts. Especially when it comes to coexistence of user and shared mailboxes in separate tenants during the migration process.
• Familiarity with Microsoft Planner for maintaining task status.
• Familiarity with Microsoft Loop for Collaboration activities.
• Experience supporting device migration and endpoint management using Microsoft Intune.
• Experience using enterprise migration tools such as AvePoint Fly, Quest or BitTitan or similar Microsoft 365 migration platforms.
• Experience using PowerShell for Microsoft 365 administration, reporting, and automation.
• Strong troubleshooting, analytical, and problem-solving skills.
• Excellent verbal and written communication skills.
• Ability to coordinate and communicate effectively with Project Managers, Technical Leads, Engineers, local support teams, vendors, and client stakeholders.
• Experience presenting migration status, issues, risks, and remediation plans to both technical and non-technical audiences.
• Experience working within structured project delivery environments.

Preferred Experience

• Microsoft 365 merger, acquisition, divestiture, or tenant consolidation projects.
• Enterprise-scale migration programs involving large migration waves and business units.
• Hybrid Active Directory and Microsoft 365 environments.
• Endpoint migration and Microsoft Intune deployment projects.
• Consulting, managed services, or professional services experience.

Preferred Certifications

• Microsoft 365 Certified: Administrator Expert
• Microsoft Certified: Identity and Access Administrator Associate
• Microsoft Certified: Teams Administrator Associate