Infrastructure · Cloud · Security · Network
I design, secure and operate reliable infrastructure.
Systems & network administrator specialized in Microsoft 365, Active Directory, hybrid infrastructure, automation and video conferencing.

Focus
From support to technical ownership.
My background combines operations, migration, security, networking and end-user guidance. I turn complex situations into clear, testable and reversible procedures.
Hybrid infrastructure
Active Directory, Entra ID, Intune, Exchange, DNS, DHCP, Windows Server, Linux, Azure.
Security & reliability
Hardening, Tier 0, NTLM, backups, monitoring, rollback plans and documentation.
Migration & automation
Microsoft 365, Exchange hybride, PowerShell, Microsoft Graph, Intune, SQL et APIs.
Recent projects
Real-world work, anonymized.
Exchange on-premises to Exchange Online migration
Hybrid migration with pre-synchronization, migration batches, controlled cutover, mailbox validation and end-user guidance.
Active Directory remediation & DHCP high availability
Audit and remediation of a multi-DC environment: replication, DNS, FSMO, SYSVOL/DFSR, NTP, NTLM, Tier 0 and DHCP failover.
Microsoft 365 & Google Workspace migrations
Google Workspace to Microsoft 365 and M365 cross-tenant migrations covering identity, mail, OneDrive, Teams, SharePoint, MFA and post-cutover validation.
Guest Invites - multi-tenant web application
PHP / JavaScript application with Microsoft authentication, Microsoft Graph, Global Admin / company admin roles, Azure App Service, Azure SQL and Power BI API.
