Microsoft 365 & Hybrid Infrastructure Specialist

Forn AB is looking for an experienced Senior Microsoft 365 & Hybrid Infrastructure Specialist.

The role focuses on Microsoft 365, Exchange Hybrid, identity, enterprise infrastructure, and large-scale migration and transformation projects.

The contract is valid up to 24months unless extended or terminated earlier

You will work across the full technical lifecycle, from assessment and solution design to migration planning, implementation, cutover, validation, troubleshooting, and operational handover.

Key Responsibilities

• Design and deliver Microsoft 365 and hybrid infrastructure solutions
• Develop target-state technical designs and migration solutions
• Design Exchange Hybrid solutions between on-premises Exchange and Exchange Online
• Plan and execute Microsoft 365 tenant-to-tenant migrations
• Design and implement hybrid identity and authentication solutions
• Work with Entra ID, Azure AD Connect / Entra Connect, and ADFS
• Define and troubleshoot mail flow, connectors, certificates, Autodiscover, and free/busy configurations
• Plan and support mailbox, PST, and Enterprise Vault migrations
• Develop solutions for Microsoft Teams, OneDrive, SharePoint, and Microsoft 365 Groups
• Assess Active Directory, DNS, Group Policy, authentication, and directory dependencies
• Perform Active Directory health checks, object recovery, and identity troubleshooting
• Define pre-stage, cutover, rollback, and post-migration validation strategies
• Ensure technical readiness and business continuity during major infrastructure changes
• Coordinate technical activities across engineering teams, vendors, service desk teams, and service management
• Participate in CAB and technical governance activities
• Ensure structured transition and handover from project delivery to operations

Technical Skills

We are looking for strong experience across several of the following areas:

• Microsoft 365
• Exchange Online
• Exchange Server 2010 / 2016 / 2019
• Exchange Hybrid
• Active Directory
• Entra ID / Azure AD
• Azure AD Connect / Entra Connect
• ADFS
• DNS
• Group Policy
• Microsoft Teams
• OneDrive
• SharePoint
• Hybrid Identity
• Cross-Tenant Migration
• Enterprise Migration and Infrastructure Design

Migration and Infrastructure Tools

Experience with the following tools and platforms is advantageous:

• BitTitan MigrationWiz