Migration Leadership
End-to-end planning and execution for identity migrations with attention to sequencing, downtime risk, coexistence, and stakeholder alignment.
Identity Architecture
Mattia Grandi architects complex identity change without losing operational control.
I design identity programs that hold up under pressure: tenant-to-tenant migrations, M&A integration, IAM modernization, PIM governance, and hybrid transformations across Microsoft ecosystems, including Active Directory (AD) and on-premise/on premise environments.
Tenant-to-tenant migrationsM&A identity integrationHybrid IAM and Privileged IdentityActive Directory (AD), Entra ID, PIM, ADFS
Special focus
Programs where identity is business-critical, not just technical.
Migrations, mergers, separation scenarios, hybrid estates, and governance hardening need clear architecture decisions and disciplined execution.
My contribution spans strategy, execution governance, and post go-live operational stabilization, with specific focus on IAM, PIM, Active Directory, and privileged identity in on-premise and hybrid contexts.
- Identity strategy with delivery depth
- Strong Microsoft ecosystem specialization
- Focus on risk, continuity, and governance
About
Identity programs shaped around risk, continuity, and execution.
My work sits where architecture, delivery, and operational reality meet. I help organizations reshape identity foundations without losing control over access, governance, and business continuity across Privileged Identity, PIM, Active Directory, and hybrid IAM estates.
Mattia specializes in migrations, M&A identity scenarios, IAM architecture, tenant-to-tenant transformation, on-prem to on-prem migration, and mixed environments where old and new platforms must coexist.
View full profileTransformation
- Tenant-to-tenant migration strategy
- On-prem to on-prem directory migration
- Hybrid coexistence and staged transitions
- Separation, consolidation, and carve-out planning
Architecture
- IAM target operating model definition
- Identity governance and privileged access design
- Authentication, federation, and trust modernization
- Digital workplace identity patterns
Platforms
- Microsoft Entra ID
- Privileged Identity Management
- ADFS and federation services
- Active Directory and hybrid identity
Atena Preview
Something bigger is coming: Atena.
A field-built solution for Privileged Identity Management (PIM) in Active Directory (AD) on-premise and on premise environments. See the dedicated page for the full vision.
Launching Soon
Discover AtenaExpertise
Architecture themes and delivery areas.
This section is structured around the kinds of programs I lead, not generic showcase cards. It is built to communicate decision-making capability in identity-heavy transformations.
M&A Readiness
Identity workstreams for acquisitions, mergers, carve-outs, and operating model changes, with governance built in from day one.
IAM Modernization
Pragmatic modernization of access, federation, governance, and privileged administration across cloud and on-prem environments.
Controlled transitions between Microsoft environments
Tenant-to-Tenant Programs
Planning and delivering identity transitions between tenants while preserving access continuity, governance controls, and operational confidence.
Entra IDMigrationCoexistence
Identity workstreams aligned with business change
M&A and Carve-Out Identity
Supporting integration or separation scenarios with clear identity architecture, trust decisions, role mapping, and privileged access controls.
M&AGovernancePrivileged Access
On-prem, cloud, and mixed estate evolution
Hybrid Directory Transformation
Designing target states and migration paths for organizations moving between legacy Active Directory, federated estates, and cloud-first identity models.
Active DirectoryADFSHybrid Identity
Identity that remains manageable after go-live
Operational Hardening
Improving privileged access, governance, and role ownership so the post-migration environment is not only deployed, but sustainable.
PIMIAMOperations
Case Studies
Selected transformation scenarios
Real-world identity work where architecture decisions directly affect business continuity.
Global carve-out with identity continuity
Context
Complex separation across hybrid directories and cloud workloads.
Challenge
Preserve access while disentangling trust, privileged roles, and federation paths.
Outcome
Delivered staged transition with clear governance checkpoints and low business disruption.
Tenant-to-tenant migration at enterprise scale
Context
Multi-country estate with mixed identity patterns and legacy dependencies.
Challenge
Coordinate sequencing, coexistence, and role remapping without security drift.
Outcome
Migration blueprint and execution model that reduced cutover risk and accelerated adoption.
Privileged access hardening post-migration
Context
Post-program environment with fragmented access ownership and inconsistent controls.
Challenge
Stabilize governance and privileged operations while teams keep shipping.
Outcome
Clear role model, stronger PIM workflows, and improved operational resilience.
Contact
If your identity estate is changing, I can help structure it properly.
For architecture reviews, migration planning, M&A identity workstreams, or governance hardening, reach out directly through LinkedIn or email.