Senior Systems & Network Administrator with 15+ years of experience managing enterprise hybrid infrastructure, networking, and security across multi-site environments. Strong expertise in LAN/WAN/WLAN architecture, VLAN segmentation, SD-WAN, enterprise firewalls, and hybrid Azure networking. Hands-on experience with Meraki MX/MS/MR platforms, Palo Alto Networks firewalls, VMware virtualization, and Zero Trust security models. Proven ability to design, secure, troubleshoot, and optimize highly available network infrastructures supporting business-critical operations across cloud and on-prem environments.
Professional Experience
Senior Systems & Network Administrator
Terra Applied Systems – League City, TX
2017 – Present
Designed and administered hybrid enterprise infrastructure across on-premises and Azure-connected environments supporting business-critical operations
Managed multi-site LAN/WAN networking, VLAN segmentation, VPN connectivity, and SD-WAN infrastructure for secure interoffice communications
Administered Meraki enterprise networking platforms including MX security appliances, MS switching, and MR wireless infrastructure using the centralized Meraki Dashboard
Configured and maintained Palo Alto Networks firewalls including security policies, traffic inspection, VPN connectivity, and network segmentation
Implemented Zero Trust security principles including MFA, Conditional Access, least-privilege access, and secure remote connectivity
Designed and managed hybrid identity infrastructure using Active Directory and Azure AD (Entra ID)
Supported Azure networking components including virtual networking, subnet planning, and secure hybrid connectivity
Administered Windows Server environments including Group Policy, NPS/RADIUS, and secure access controls
Managed highly virtualized infrastructure environments using VMware, Hyper-V, and Proxmox
Performed network troubleshooting, monitoring, and infrastructure optimization to improve uptime, reliability, and performance
Automated operational and administrative tasks using PowerShell to improve efficiency and reduce manual workload
Conducted vulnerability assessments and remediation using OpenVAS and security monitoring platforms
Designed and maintained backup and disaster recovery strategies including immutable backup systems and rapid VM recovery processes
Collaborated with infrastructure, security, cloud, and leadership teams on infrastructure modernization initiatives
IT Infrastructure & Network Consultant (Contract)
Multiple Clients (Galperti Inc, Quantum Capital, Brenntag)
2021 – 2024
Designed and implemented enterprise network infrastructure upgrades including firewall deployments, VLAN segmentation, VPN connectivity, and structured cabling improvements
Redesigned multi-site network environments to improve scalability, performance, resiliency, and security
Led Microsoft 365 and Google Workspace migrations for distributed organizations with minimal downtime
Supported ERP migration initiatives requiring coordination between infrastructure, networking, cloud, and application teams across US and international operations
Implemented enterprise security platforms including Palo Alto, Check Point, Sophos, and Veeam solutions
Deployed SIEM and vulnerability management solutions including Splunk and OpenVAS for proactive monitoring and threat detection
Assisted organizations with hybrid cloud adoption, secure remote access, and infrastructure modernization initiatives
Education & Certifications
Google Cybersecurity Professional Certificate – 2025
Google Project Management Certificate – 2025
NABCEP PV Design Specialist Certification – In Progress
NYU School of Continuing Education – Certificates in Networking, UNIX, CISSP Prep
Associate Degree – Systems Analysis (Mainframe, DB2, COBOL)
Technical Environment
Azure AD, Microsoft 365, Windows Server, Debian Linux, VMware, Proxmox, Ubiquiti, PowerShell, Splunk, Veeam, Docker, Twingate, SharePoint, Teams