Hello! 👋

I'm George Rubio

Systems Administrator

About Me

Experienced Systems Administrator with 5 years of IT experience supporting enterprise environments across a wide range of industries. Currently managing 200+ clients and 10,000+ endpoints at a managed service provider, with deep expertise in Microsoft Azure, Office 365, virtualization, networking, and endpoint management. Certified in CCNA, AZ-900, and AZ-104. Passionate about building reliable, automated, and secure infrastructure — both professionally and in my homelab.

Windows Server Linux Microsoft Azure Office 365 Hyper-V VMware Networking Python Docker PowerShell Intune ConnectWise Automate Datto RMM Cisco Umbrella Proofpoint Barracuda SonicWall WatchGuard Meraki UniFi SAP Sage Dynamics 365

Projects

03

Multi-VLAN Home Network

Architected a segmented home network using UniFi UCG Max with multiple VLANs, custom firewall rules, IDS/IPS, Pi-hole DNS with cloudflared DoH, and WireGuard VPN. Includes guest network isolation and inter-VLAN traffic policies.

UniFiNetworkingLinuxWireGuard
04

NAS Migration & Docker Container Infrastructure

Planned and executed a full NAS migration including all data, shares, and containerized workloads to a new device. Migrated persistent Docker container volumes and configurations with zero data loss, leveraging bind mounts and volume mapping strategies to ensure seamless continuity. Rebuilt and validated all container services post-migration including media management, monitoring, and request management stacks. Implemented RAID configuration for redundancy and optimized SMB share performance for high-throughput media streaming.

DockerLinuxQNAPRAIDSMBNetworking
05

Active Directory Lab Environment

Designed and deployed a full Windows Server Active Directory lab environment including domain controllers, DNS, DHCP, and organizational unit structure. Configured Group Policy Objects for security hardening, software deployment, drive mapping, and user environment management. Implemented FSMO role management, AD replication monitoring, and user/group provisioning workflows. Used for testing GPO changes, AD migrations, and PowerShell automation scripts before deploying to production client environments.

Windows ServerActive DirectoryPowerShellDNSDHCPHyper-V
06

Automated Patch Management & Compliance Reporting

Developed a PowerShell-based patch management and compliance reporting system integrated with ConnectWise Automate and Datto RMM. Automated identification of missing patches across 10,000+ endpoints, generated weekly compliance reports segmented by client, and triggered remediation workflows for critical vulnerabilities. Reduced manual patch review time significantly and improved visibility into endpoint health across all managed client environments.

PowerShellConnectWise AutomateDatto RMMWindows ServerScripting
07

Azure Infrastructure Deployment

Deployed and configured Azure cloud infrastructure for client environments including virtual machines, virtual networks, network security groups, Azure Active Directory, and Azure Backup. Implemented Azure AD Connect for hybrid identity synchronization between on-premises Active Directory and Azure AD. Configured conditional access policies, multi-factor authentication, and role-based access control. Managed Azure subscriptions, resource groups, and cost monitoring across multiple client tenants leveraging AZ-104 expertise.

Microsoft AzureAzure ADPowerShellNetworkingIntune
08

Backup & Disaster Recovery Testing Lab

Built a structured backup validation and disaster recovery testing framework using Datto SIRIS and Datto RMM across managed client environments. Implemented automated backup verification, screenshot verification of virtualized backups, and documented RTO/RPO metrics per client. Conducted regular DR drills including bare-metal restores, virtualization failover testing, and cloud failover scenarios. Developed standardized DR runbooks and recovery procedure documentation to ensure rapid response during real incidents.

DattoBackup & RecoveryWindows ServerHyper-VVMware

Experience

Systems Administrator

CompassMSP

Feb 2023 - Present
  • Support 200+ clients and 10,000+ endpoints across a wide range of industries as part of a managed service provider
  • Administer Microsoft Azure and Office 365 environments including Exchange Online, Intune, and Microsoft 365 Admin Center
  • Manage virtualization infrastructure using Hyper-V and VMware across client environments
  • Deploy and maintain network security solutions including SonicWall, WatchGuard, Barracuda, Proofpoint, and Cisco Umbrella
  • Support ERP systems including SAP, Sage, and Microsoft Dynamics 365 for enterprise clients
  • Utilize ConnectWise Automate and Datto RMM for remote monitoring, management, and backup across all client endpoints
  • Configure and manage networking infrastructure including Meraki, UniFi, SonicWall, and WatchGuard environments
  • Automate IT workflows and reporting using PowerShell scripting

IT Operations Analyst

Arjo

Mar 2022 - Feb 2023
  • Provided IT operations support for Arjo, a global medical device company, across the Greater Chicago Area
  • Performed network troubleshooting and computer hardware diagnostics and repairs across multiple sites
  • Supported end users with technical issues and maintained hardware inventory for a global organization
  • Collaborated with international IT teams to ensure consistent infrastructure and support standards

SSA / Mobile Support

Comcast

Apr 2021 - Mar 2022
  • Provided mobile device troubleshooting and customer support across the Greater Chicago Area
  • Resolved complex technical issues related to mobile hardware and software
  • Delivered top-tier customer service while maintaining high satisfaction scores

Education

CCNA — Cisco Certified Network Associate

Cisco

    AZ-900 — Microsoft Azure Fundamentals

    Microsoft

      AZ-104 — Microsoft Azure Administrator

      Microsoft