Pablo Josue S.

Struggling with a broken cross-tenant sync, a mailbox permission that shouldn't be failing, or an identity conflict no one can trace? That's exactly the kind of problem I resolve.

I'm a Microsoft 365 engineer specializing in Entra ID (Identity) and Exchange Online, with 5,000+ hours of hands-on support, $300K+ earned, and a 100% Job Success Score. I focus on the complex, hard-to-diagnose cases — the ones that don't have a documented fix.

Recent problems I've solved:

• Cross-tenant synchronization identity collision — traced and resolved an alternativeSecurityIdentifier conflict blocking user provisioning across merged tenants.
• Exchange Online RBAC misconfiguration — diagnosed a Delegating vs. Regular role assignment issue that was silently breaking admin permissions.

What I do:

• Entra ID / Identity — hybrid identity, Conditional Access, cross-tenant sync, provisioning conflicts, MFA/SSO, SSPR
• Exchange Online — mail flow, RBAC, transport rules, mailbox permissions, DMARC/SPF/DKIM authentication
• Migrations — tenant-to-tenant and cross-platform (M365 ⇄ Google Workspace), including identity setup, mail flow cutover, and SPF/DKIM/DMARC configuration to prevent post-migration deliverability issues
• PowerShell — user provisioning, license management, and reporting automation
• Broader M365 — Teams (Associate certified), SharePoint/OneDrive, plus tenant-wide administration

Certifications: MS-900, MS-700, Microsoft Teams Administrator Associate. MS-102 (Administrator Expert) in progress.

I work in English, Spanish, and Japanese (JLPT N1).

If you have a Microsoft 365 issue that's been open too long, send me the details and I'll tell you how I'd approach it. Happy to answer any questions.