Ubelio Fernandez-Tabet

Cloud Security & Automation Engineer | Microsoft Sentinel, Entra ID & Zero Trust | AI-Powered Agent Development

Ubelio Fernandez-Tabet

Cloud Security and Automation Engineer with 10+ years across financial services, manufacturing, education, and MSP environments. I migrated a legacy on-prem SIEM to Microsoft Sentinel, cutting operating cost 60%+ while engineering 60+ detection rules across 14 connectors — and I've raised Microsoft Secure Score to 98% while automating device provisioning from 4 hours to under 45 minutes.

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Welcome

This portfolio documents my work across identity and access management, cloud security posture, endpoint management, and enterprise automation in regulated environments where the margin for error is small. Career highlights include raising Microsoft Secure Score from 30% to 93% at one organization and to 98% at my current one, integrating 14 log connectors and three threat intelligence feeds into Microsoft Sentinel, migrating 610 devices to Intune with hybrid identity, and patching 1,000+ endpoints via SCCM/Intune co-management. I've also built 30+ Power Automate flows and Azure Logic Apps eliminating ~200 hours of manual work a year, stood up SCIM provisioning bridges for third-party platforms, enforced Zero Trust and Microsoft Purview data governance across hybrid infrastructure, and developed Copilot Studio agents — including MCP-connected solutions — that bring self-service intelligence into enterprise workflows. Explore my Projects, Labs, and Scripts pages for the detail behind each.

Technical Skills

Identity & Access

  • Entra ID (SSO, SCIM, CA, MFA, PIM)
  • RBAC
  • Windows Hello (Hybrid)
  • Passwordless Authentication
  • Zero Trust Architecture

Security & Compliance

  • Microsoft Defender / Defender for Cloud
  • Defender for Cloud Apps (Shadow IT discovery)
  • Microsoft Sentinel — Detection Engineering (60+ analytic rules, threat intel feed integration)
  • CrowdStrike Falcon
  • Purview DLP & Information Protection
  • BitLocker, TLS/SSL
  • Security Baselines
  • Vulnerability Management
  • Incident Detection and Response
  • Least Privilege Access Governance

Cloud & Governance

  • Microsoft Azure
  • Azure Policy
  • Defender for Cloud regulatory compliance
  • Azure Well-Architected reviews
  • Secure Score optimization
  • Microsoft 365
  • Exchange Online (Hybrid)
  • SCIM Provisioning (third-party platform bridges)

AI & Copilot Agent Development

  • Copilot Studio agent building
  • MCP server integration (Microsoft Learn)
  • Business-process agents (IT self-service, sales prospecting)
  • Microsoft Agent Academy hands-on labs
  • Enterprise AI Governance & Administration (Copilot, AI retention policy)

Endpoint Management

  • Intune, Autopilot, MDM/MAM
  • SCCM/MECM
  • Co-Management
  • PXE/MDT/WDS
  • Windows 10/11 upgrades
  • Endpoint Analytics

Automation & Scripting

  • PowerShell
  • Python
  • Bash
  • SQL
  • Power Automate
  • Azure Logic Apps
  • Deployment & health-check automation
  • SCCM remediation scripts

Infrastructure

  • Windows Server (2016–2025)
  • AD DS, GPO, ADCS
  • VMware
  • DNS/DHCP/VPN
  • Firewall
  • Cisco Switches
  • Backup & Recovery

Certifications

Completed

Pursuing

See Complete Microsoft Transcript for all Microsoft Certifications, Applied Skills and other Microsoft related Learning.

ETAs are estimates and subject to change. Certifications are prioritized to align with the requirements of my current role and employer.

Currently Working On

Looking for a senior IT leader who can secure, automate, and modernize your infrastructure? Let’s connect.