Continuous Improvement Network Security

Joshua Itotani

Fort Huachuca AZ

520-***-**** ************@******.**

www.linkedin.com/in/joshuaitotani

Rising in network administration and strategist for data analysis, network security and network operations. A driver of continuous improvement who eliminates single points of failure, transforming complex obstacles into tangible and profitable solutions.

Skills/Experience/Knowledge Certifications

●Routing and Switching • CCNA Expires: Oct 2026

●Network Troubleshooting • CompTIA Security + Expires: Dec 2026

●STIG Documentation • CompTIA Network + Expires: Dec 2026

●Packet captures • CompTIA CySA Expires: Dec 2026

●DHCP

●Cisco Security Manager Clearance

●Firewall • TS/SCI

●Taclanes

●Cabling (Fiber/CAT5E/CAT6)

●Wireshark

●VXLAN

Education

Bachelor’s in information technology

Network Admin – 11/2023 to 4/2024.

SOS International

Fort Huachuca Regional Cyber Center Conus

Configuration/installation of Cisco/Juniper product line of routers/switches.

Migrating VLANs and sub nets to and from routing instances.

Tracing IP addresses source or destination on a given instance.

Performing forward proxy and web content filtering bypass to troubleshoot customer access to various destinations.

Deliver engineering support for both classified and unclassified network environments.

Troubleshoot and resolve issues related to DHCP IP and NAT pool exhaustion to maintain continuous network availability.

Running packet capture for traffic analysis.

Adding, removing, and editing access-lists and policies to permit or deny traffic according to firewall change worksheets either manually or through Cisco security manager.

Reporting and notifying operations bridge managers of circuit status and updates.

Provide 24/7 support for emergency operations as needed, responding to all operational requirements in accordance with contract guidelines.

Responsible for diagnosing data issues, creating and routing trouble tickets, and coordinating customer support cases with third-party subject matter experts through Tier 3 contracted support channels. This includes engaging with DISA for ticket creation, tracking, and updates related to BGP/MPLS circuit outages to ensure timely and effective resolution.

Contribute to the maintenance, optimization, and performance tuning of enterprise infrastructure supporting Regional Cyber Security Center firewalls.

Network Admin - 08/2022 to 8/10/2023.

General Dynamics

Fort Huachuca

●Implement, configure, and troubleshoot network infrastructure using modern networking technologies

●Monitor, troubleshoot, configure, and maintain over 100 networked devices including switches and routers remotely.

●Assisted planning, configuring, and setup of the Cisco Identity Services Engine.

●Provided network infrastructure support for NetApp and VMware enclave.

●Planned authorized service interruptions for network maintenance and software/firmware updates on networked equipment.

●Work with the following software: Windows 10 and 11, Microsoft Suite, Remedy ITSM, SharePoint, Cisco ISE, and NX-OS.

●Work with the following hardware: Cisco Nexus Switches, Cisco Routers, and Cisco Unified Computing Systems.

●Escalate more significant network infrastructure issues and provide data to the engineering team.

●Look more in-depth with customer issues, work through escalated tickets (gather more specific data, and respond in a timely fashion).

●Support the implementation of network security measures to ensure compliance with DoD, and DISA standards, adhering to STIG documentation and best practices.

●Manage daily tasks related to upgrade initiatives while delivering operational support for routers, switches, and IP address management. Utilize network monitoring tools such as Cisco ISE and CSM to maintain performance and security. Also responsible for integrating new network solutions into the existing infrastructure.

●Deliver engineering support for both classified and unclassified networks during system upgrades and vPC failover testing, ensuring stability and readiness before introducing new devices and configurations.

●Supported O&M various Department with Standard Operating Procedures (SOP) for implementation strategies for various site builds and configurations.

●Operate independently in support environment meeting deadlines with Approved Service Interruptions (ASI) simultaneously performing multiple tasks.

●Collaborate with a team of network engineers to manage and maintain a converged Gigabit Ethernet network infrastructure.

Multi-channel Transmission Operator/Maintainer - 04/2018 to 10/2022

US Army

Fort Huachuca

●Installation, operation, and maintenance on multichannel line-of-site and tropospheric scatter communications systems, antennas, and associated equipment.

●Implementation of Cisco Switching devices through installation, configuration, and maintenance of associated cabling.

●Providing support for DoD local area networks, and wide area networks; maintaining internetwork availability in Atlantic Resolve missions spanning various European nations.

●Performed maintenance and repair on vehicles, generators, and the satellite transportable terminal; replacement of copper/fiber cables, motors, batteries, resoldering bad connections.

●Supervised team movement and deployment of SATCOM devices consisting of switches, routers, and TACLANEs.

I.T. Support Technician - 10/2016 to 03/2018

Skagit Valley College

Oak Harbor WA

●Creation, modification, and deployment of system images through Hypervisor and PowerShell

●Respond to trouble tickets and perform troubleshooting on computer hardware and software systems.

●Troubleshooting and modifying ACLs on firewalls instances.

●Installation and maintenance of network switching, troubleshooting connectivity issues with vlan, subnet, duplex, speed, transceiver, and protocol misconfigurations.

●Deployment and maintenance of IoT peripherals.

●Assisted in the development of endpoint solutions with Windows 2012 R2/2016 Server and Windows 10 client builds.

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