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teketim/README.md

Timothy Lacey Sr.

Senior Infrastructure Engineer | Azure & Hybrid Cloud | Microsoft 365 | Entra ID | Terraform | PowerShell | VMware | Hyper-V | Disaster Recovery

Senior infrastructure and cloud engineer with 25+ years of enterprise IT experience across Microsoft Azure, Microsoft 365, Active Directory / Entra ID, VMware, Hyper-V, enterprise storage, security operations, and hybrid infrastructure.

My work focuses on reliable infrastructure, cloud modernization, automation, disaster recovery, operational resilience, and clear technical decision-making.

Featured Project

An enterprise-style Azure infrastructure engineering portfolio project demonstrating how I design, automate, validate, and document a hybrid disaster recovery foundation.

Implemented and demonstrated:

  • Modular Terraform Infrastructure as Code
  • Azure hub-and-spoke networking with dedicated DR segmentation
  • PowerShell operational readiness validation
  • Azure CLI control-plane verification
  • Disaster recovery architecture and recovery-readiness checks
  • Microsoft Foundry / AI administration readiness and quota visibility
  • GitHub Actions CI/CD for Terraform and PowerShell validation
  • Cost-conscious cloud architecture and production-extension planning

Repository: Enterprise-Terraform-Azure-Toolkit

Core Technologies

Cloud & Microsoft
Azure • Microsoft 365 • Entra ID • Active Directory • Exchange Hybrid • Conditional Access • Azure Networking

Infrastructure & Virtualization
Windows Server • VMware vSphere / vCenter • Hyper-V • HPE Nimble • Enterprise Storage • High Availability • Disaster Recovery

Automation & DevOps
Terraform • PowerShell • Git • GitHub • GitHub Actions • Infrastructure as Code

Security & Operations
CrowdStrike • Proofpoint • KnowBe4 • CIS Hardening • Identity & Access Management • LogicMonitor • ITIL

Enterprise Experience Highlights

  • Supported 15,000+ mailbox Exchange Hybrid environments
  • Planned and executed a 63 TB / 76-volume HPE Nimble migration with no production downtime
  • Migrated 50+ Windows Server workloads without production outages
  • Supported enterprise cyber-incident recovery and infrastructure remediation
  • Built automation and repeatable infrastructure workflows using PowerShell and Terraform

Currently Developing

I continue to strengthen my hands-on architecture and automation skills through focused study and portfolio work in:

  • AZ-104 — Microsoft Azure Administrator
  • AZ-305 — Designing Microsoft Azure Infrastructure Solutions
  • Terraform / Infrastructure as Code
  • AI platform administration and Microsoft Foundry

Professional Focus

I am particularly interested in opportunities involving:

Senior Infrastructure Engineering • Azure / M365 Engineering • Hybrid Cloud • Infrastructure Automation • Solutions Architecture • Disaster Recovery

Connect

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  1. Enterprise-Terraform-Azure-Toolkit Enterprise-Terraform-Azure-Toolkit Public

    Enterprise Azure DR and hybrid-cloud portfolio using Terraform, PowerShell, GitHub Actions, hub-and-spoke networking, and AI administration readiness.

    PowerShell