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fredy vargas

@fredyvargas1

I resolve enterprise cloud, identity, network, and security incidents across U.S. organizations.

At Corsica Technologies, I provide remote L2/L3 support for 33+ U.S. organizations, resolving 30+ daily incidents across Azure, Microsoft 365, networking, servers, security, endpoints, and recovery. I reduced cloud and identity resolution time by 25% and use PowerShell to reduce recurring incidents and repetitive administration.

I've supported 200+ Citibank and Capital One branches, modernized Cisco infrastructure, and designed secure LAN/WLAN and physical-security systems. My work spans Azure, Entra ID, Microsoft 365, Cisco, Meraki, Fortinet, SonicWall, VPN, SD-WAN, Windows Server, and MSP tools.

Experience

Work history, roles, and key accomplishments

Current

Cloud & Network Support Administrator

Current

Corsica Technologies

Jul 2025 - Present (1 year 2 months)

Provide remote L2/L3 support for 33+ U.S. organizations, resolving 30+ daily incidents across Azure, Microsoft 365, networking, servers, security, endpoints, and recovery. Administer Azure VMs, Storage, Entra ID, Intune, Exchange Online, and SharePoint/OneDrive, reducing cloud and identity resolution time by 25%.

Azure Microsoft 365 Entra ID Intune Exchange Online SharePoint One Drive Cisco Meraki Fortinet Sonicwall VPN SD WAN Windows Server Active Directory Datto PowerShell

Network Support Engineer

HTx Services

Mar 2023 - Jul 2025 (2 years 4 months)

Supported 200+ Citibank and Capital One branches, migrating 12-15 teller/manager PCs per site from Windows 7 to 10 and completing up to 12 systems daily through VMware and Remedy. Upgraded 80+ ATMs/Teller Cash Recyclers and modernized Cisco Catalyst switching, routing, cabling, firmware, and ISP connectivity, improving resolution time by 15%.

VMWare Remedy Cisco Catalyst Win7 Windows 10 ATM Teller Cash Recycler Networking Routing Switching Cabling Firmware ISP

Network Support Specialist

Canteen Vending

Apr 2022 - Feb 2023 (10 months)

Closed 5-8 daily incidents using telemetry, transaction logs, and network diagnostics to restore offline devices, payment processing, and controller communication. Configured network settings and diagnosed communication failures affecting transactions, device reporting, and remote system visibility.

Network Diagnostics Telemetry Transactional Logs Payment Processing Network Configuration Remote Support

Network Infrastructure Specialist

Smart Business and Home

May 2021 - Apr 2022 (11 months)

Designed 3-5 secure residential LAN/WLAN deployments monthly with racks, VLANs, firewalls, VPN/cloud access, eero Wi-Fi, Lutron HomeWorks/RadioRA 2, and Savant Blueprint. Integrated Sonos audio and Hikvision cameras/NVRs with security, lighting, and automation; resolved 2-3 daily remote incidents and reduced recurring issues by 15-20%.

LAN WLAN VLAN Firewalls VPN Cloud Access Controls EERO Lutron HomeWorks RadioRa3 Savant Blueprint Sonos Hikvision NVR Security Automation

Network Security Engineer

Brisec Security Smart

Jan 2019 - Apr 2021 (2 years 3 months)

Designed network and physical-security systems for large residential and commercial sites, integrating cameras/NVRs, access control, intercoms, license-plate recognition, cloud video, storage, and backups. Secured LAN/WLAN environments using routers, switches, firewalls, VLANs, Wi-Fi, structured cabling, and point-to-point wireless bridges from design through handoff.