Multi-Cloud Landing Zone
Designed and implemented secure foundational infrastructure across AWS and Azure with centralized identity management, network segmentation, and cost optimization controls.
Hello, I'm
Technology Professional | Systems Administration
IT professional with 25+ years of combined military and civilian experience. From U.S. Army Infantry to IT Cloud Administrator, I specialize in hybrid cloud environments, cybersecurity, and AI-powered solutions. Honorably served 14 years, achieving Sergeant First Class (E7) in just 9 years.
#!/bin/bash
class TechnologyProfessional {
constructor() {
this.name = "Antonio Ramirez";
this.role = "Infrastructure Engineer";
this.focus = [
"Cloud Architecture",
"Systems Admin",
"Cybersecurity"
];
}
deploy(solution) {
return solution + " ✅ deployed";
}
}
I bridge the gap between infrastructure and innovation, delivering secure, scalable solutions that empower organizations.
Windows Server and Linux lifecycle management with focus on automation, monitoring, and high availability.
Multi-cloud expertise across AWS, Azure, and Microsoft 365 with secure landing zones and cost optimization.
Enterprise network architecture with routing, switching, VLANs, and secure hybrid connectivity.
Security-first mindset with hardening, zero trust principles, and threat detection practices.
My professional journey across infrastructure, cloud, and security roles.
Merit Aluminum — Corona, California
Lead IT operations across multiple locations, managing hybrid cloud environments including AWS, Azure, Microsoft 365, and Meraki infrastructure. Improved endpoint security through Intune MDM, resulting in 25% reduction in security incidents. Developed AI-powered web apps including a Purchase Order extractor and asset management system. Engineered a unified monitoring dashboard for all company platforms.
Innovatech Partners — Plymouth Village Community (HumanGood)
Administered complete IT infrastructure including servers, networks, and end-user systems. Managed Active Directory, network infrastructure, and endpoint security. Spearheaded biweekly technology education workshops for 250+ residents. Collaborated with cross-functional teams to plan and execute IT projects.
General Networks Corporation
Provided technical support to 1,000+ clients in an MSP environment. Managed Level 1–3 support requests, delivered remote assistance for Microsoft 365 platform, and supported Microsoft Office 365 applications including Outlook, Teams, SharePoint, and OneDrive.
Robert Half — City of Hemet, California
Triaged and resolved IT helpdesk tickets with high user satisfaction. Deployed cybersecurity training using KnowBe4 platform. Procured and deployed Surface Pro tablets and all-in-one desktops via Microsoft Intune MDM. Managed Windows 365 Admin Center, Azure AD, Exchange Online, Teams, SharePoint, and SCCM. Utilized PowerShell scripting and Power Automate to optimize system performance.
Kaiser Permanente — Corona, California
Provided customer support for Identity and Access Management services nationwide. Configured Cisco Secure ACS firewall rules for VPN user authorization. Served as Lead Analyst for RSA SecurID hardware token distribution. Educated clients on MFA setup including PingID and RSA SecurID software tokens. Troubleshot SSL, VPN, and MFA connection issues.
Loma Linda University Medical Center — Loma Linda, California
Delivered end-user support for medical center staff and campus entities. Analyzed technical network and LAN/WAN issues. Performed break/fix troubleshooting for medical cart systems, laptops, and peripherals. Contributed to networking projects involving Cisco switches and data cabling.
Grifols Inc. — Los Angeles, California
Maintained IT hardware inventory for 200 Plasma Donor Centers nationwide. Imaged, configured, and installed PCs, laptops, and software for end users. Assisted with Windows XP to Windows 7 migration. Created Active Directory accounts and managed Security Group permissions. Maintained Exchange Server account quotas and provided iOS device support.
U.S. Army — Colorado Springs, Colorado
Served honorably for 14 years with accelerated promotion to Sergeant First Class (E7) in just 9 years. Progressed through leadership roles from Infantry Soldier to Platoon Sergeant, culminating as Organizational Defense Travel Administrator. Maintained accountability of personnel, weapons, and communications equipment throughout two consecutive 15-month deployments to Iraq.
Technologies and tools I work with daily.
Key initiatives I've led or contributed to.
Designed and implemented secure foundational infrastructure across AWS and Azure with centralized identity management, network segmentation, and cost optimization controls.
Led network modernization initiative implementing VLAN segmentation, site-to-site VPNs, and centralized monitoring across multiple office locations.
Implemented comprehensive security hardening program including endpoint protection, identity governance, and compliance monitoring.
I'm always interested in discussing new opportunities, infrastructure challenges, or technology innovations.