Hello, World — I'm
Jeremy Cain
4+ years engineering enterprise IT operations at scale — focused on cloud infrastructure, network security, and automation.
01. ABOUT
Building the future of secure infrastructure
I'm an IT Systems professional with 5+ years of hands-on experience operating at enterprise scale — supporting Microsoft 365, Azure AD, Active Directory, VMware Horizon, Citrix, and mobile device management for organizations with thousands of users.
My background is in enterprise technical support, but my focus has always been on the infrastructure underneath: the domain controllers, the firewall rules, the PowerShell automation that eliminates repetitive work, and the security policies that keep systems hardened.
I'm actively building toward cloud infrastructure and security engineering roles — backed by a BS in Network Operations & Security (WGU), a CCNA, CompTIA Security+, AZ-900, and hands-on home lab work with AD DS, pfSense, Proxmox, and Linux.
02. SKILLS
Technical Expertise
- Microsoft Entra ID (Azure AD)
- Microsoft 365 Admin
- AZ-900 Certified
- Microsoft Intune
- MFA / Conditional Access
- CCNA Certified
- DNS / DHCP / TCP/IP
- pfSense Firewall
- CompTIA Security+
- Network Segmentation
- Microsoft Intune
- BlackBerry UEM
- VMware AirWatch
- SCCM Deployment
- Windows 10/11 / macOS / Linux
- Active Directory DS
- Windows Server
- VMware Horizon / Citrix
- Proxmox Virtualization
- PowerShell Automation
- ServiceNow / BMC Remedy
TOOLS & PLATFORMS
03. CERTIFICATIONS
Verified Credentials
Industry-recognized certifications spanning security, networking, cloud, and systems administration.
04. EXPERIENCE
Career Timeline
Technology Operations Associate
- Provide technical support for 1,000+ internal employees supporting business-critical financial operations
- Troubleshoot Windows 10/11, Microsoft 365, VMware Horizon, Citrix Virtual Desktops, and Windows Cloud PCs
- Administer Microsoft Intune and BlackBerry UEM to support enterprise mobile devices
- Resolve hardware, software, authentication, and account issues via phone, remote support, and enterprise tools
- Consistently maintain a 100% ticket quality score while meeting service-level expectations
- Collaborate with multiple technology teams to resolve complex issues and improve service delivery
End User Support Specialist
- Supported 1,000+ global employees across Windows workstations, Microsoft 365, and Azure Active Directory
- Provisioned Active Directory and Microsoft 365 accounts using PowerShell automation
- Managed mobile devices using VMware AirWatch and configured Cisco IP phones
- Installed software, resolved hardware failures, and supported multi-factor authentication
Technical Support III (Contractor)
- Delivered advanced support for enterprise laptops, virtual machines, and Chromebooks
- Resolved Level II technical issues using BMC Remedy and remote support tools
- Assisted users with hardware, software, and business application issues
Service Desk Analyst I
- Provided technical support for Windows systems, Active Directory accounts, printers, and business applications
- Managed and routed ServiceNow incidents to appropriate support teams
- Assisted in the successful deployment of 600+ Windows 10 workstations
- Created documentation to improve knowledge sharing and issue resolution consistency
IT Support Specialist
- Manage IT infrastructure including desktops, livestream systems, and GoTo Connect PBX
- Provide remote and onsite support with emphasis on proactive issue resolution
05. PROJECTS
Home Lab Projects
Hands-on infrastructure and security work built in a self-managed lab environment — simulating real enterprise configurations.
West Freeway Church of Christ — Website Redesign
- Designed and built a full website redesign for a live organization using .NET 10 and ASP.NET Core Razor Pages
- Integrated Umbraco CMS for content management, enabling non-technical staff to update pages independently
- Implemented 9 core pages: Home, Plan Your Visit, Contact, Events, Sermons, Elders, Staff, History, and Give
- Built to WCAG 2.2 AA accessibility standards with mobile-first responsive design
- Wrote a Playwright browser test suite with axe accessibility checks for automated quality assurance
- Architected with clean separation of concerns: Pages, Services, ViewModels, and Data layers
Active Directory & Windows Server 2022 Lab
- Installed and configured Windows Server 2022 in a virtualized environment
- Deployed Active Directory Domain Services (AD DS) with DNS and DHCP
- Promoted server to Domain Controller and managed users, groups, and OUs
- Implemented Group Policy Objects (GPOs) to enforce security configurations — including preventing users from disabling Windows Defender Firewall
- Practiced identity and access management through policy enforcement and privilege tiering
pfSense Firewall + VPN + Snort IDS
- Deployed pfSense as a virtual firewall to segment and protect the home lab network
- Configured site-to-site and client VPN for secure remote access
- Integrated Snort as an Intrusion Detection System (IDS) to monitor and alert on suspicious traffic
- Created custom firewall rules and traffic policies to simulate enterprise perimeter security
Virtualization & Enterprise Lab
- Built a multi-hypervisor home lab using Proxmox, VMware Workstation, and VirtualBox
- Runs multiple simultaneous Linux (Ubuntu, Kali) and Windows VMs to simulate enterprise environments
- Used as a sandboxed environment for testing AD configurations, firewall rules, and security tooling
- Practices snapshot management, VM cloning, and network bridging/isolation
More projects in progress — PowerShell automation scripts, Azure sandbox labs, and security tooling.
06. CONTACT
Let's Connect
I'm actively looking for cloud infrastructure and security engineering opportunities. Whether it's a role, a project, or just a conversation — reach out.
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