Summary
Overview
Work History
Skills
Timeline
Generic

Leonel Garcia

Modesto,CA

Summary

Experienced Tier 3 Technician with 15+ years supporting remote users, managing client infrastructure, and resolving escalated issues across cloud and on-prem environments. Proven expertise in Microsoft 365, Azure, Microsoft Entra ID, Intune, VOIP systems (3CX, SKYSWITCH), firewall configuration, and system hardening. Skilled at supporting MSP clients with documentation, training, and proactive technical leadership. Ready to contribute to a fast-paced remote support environment with professionalism and precision.

Overview

15
15
years of professional experience

Work History

Professional Services Engineer

ITS | Currie
01.2020 - 08.2024
  • Lead Tier 3 support for hybrid Microsoft 365, Azure, and on-prem infrastructure across multiple SMB clients.
  • Migrated legacy Active Directory environments to Microsoft Entra ID and Azure AD, enabling secure hybrid identity management.
  • Deployed Microsoft Intune and Autopilot to manage endpoints, enforce compliance policies, and automate device provisioning.
  • Implemented Cloudflare Zero Trust to enable identity-based access to internal services, replacing VPN-based access.
  • Deployed hosted and on-prem VOIP systems using SKYSWITCH and 3CX, configured SIP trunks, and documented deployment processes.
  • Created internal training videos and SOPs for help desk staff and junior engineers.
  • Maintained firewall and backup configurations, monitored infrastructure health, and reduced response time through automation.

Sr. Network Engineer

Network Builders IT
01.2019 - 01.2020
  • Provided Tier 2/3 support for remote clients, managing infrastructure including servers, firewalls, and mobile device deployments.
  • Deployed Sophos Mobile with Apple DEP; configured 100+ devices across multiple client environments.
  • Installed and maintained surveillance systems (Axis Cameras) and managed Windows and Linux server environments.
  • Collaborated with vendors and internal teams to resolve complex infrastructure issues and implement monitoring solutions.

Sr. Systems Engineer / AWS Certified Administrator

Valleytech Logic
01.2010 - 01.2019
  • Supported MSP clients with full infrastructure lifecycle — server installs, VOIP (3CX, Cisco UC), network design, and Tier 3 escalations.
  • Deployed and supported PACS systems (PacsOne, IQWEB) for radiology practices.
  • Managed cloud infrastructure via AWS (EC2, S3, IAM) for hybrid environments.
  • Resolved advanced issues in Linux, Windows Server, and networked environments, reducing recurring ticket volume by 40%.

Skills

  • Hybrid infrastructure management
  • Microsoft 365 administration
  • Azure AD migration
  • Device provisioning automation

Timeline

Professional Services Engineer

ITS | Currie
01.2020 - 08.2024

Sr. Network Engineer

Network Builders IT
01.2019 - 01.2020

Sr. Systems Engineer / AWS Certified Administrator

Valleytech Logic
01.2010 - 01.2019

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