Billy Guthrie

Network Engineer II
Ewa Beach, Hawaii, United States

Contact

127.0.0.1
808-779-4334 (Work)
bg@billyguthrie.com
://www.linkedin.com (LinkedIn)

Top Skills

PyAV, OpenCV, Netmiko, Scrapli, NAPALM, Scapy, Pyshark, Netaddr, Ekahau, illumio

Certifications

Juniper Networks Certified Associate, Junos (JNCIA-Junos)
Illumio - Self Paced 100 and 300 Training Series (101, 110, 120, 11, 130, 150, 160, 301)

Publications

Understanding Network and Internet Latency

Summary

Aloha! I’m a JNCIA/CCNA network engineer with a passion for troubleshooting, maintaining, designing, building and automating networks; my career has been focused on designing, implementing, and improving reliable networks that keep organizations connected and running smoothly.

Network Professional Highlights:

Network Engineering: Over the years I’ve designed, implemented, and supported enterprise-grade networks with a focus on uptime and reliability. I have experience across routing, switching, firewalls, and wireless, making sure systems are designed to scale and stay resilient under heavy use.

Automation: I’ve written Python scripts to automate network tasks, utilizing libraries such as Netmiko, Paramiko, pySNMP, and requests, along with pandas and openpyxl for reporting. These tools have been used for configuration, monitoring, and data collection across Cisco, Juniper, and other platforms, helping reduce manual work, minimize errors, and improve efficiency in daily operations.

  • End-to-end system integration, blending security devices with Cisco switching/routing, wireless bridges, LTE remote backhaul, RF PTP/ PTMP links, and custom low-voltage infrastructure.

Experience

Telecommunications
Network Engineer II
August 2022 - Present (3 years 8 months)
Hawaii, United States
LAN/WAN Main

Troubleshoot LAN: (Multi-Layer Edge Switching/Routing): Solid understanding of OSPF, BGP, RSTP, 10Gbps Ethernet, Juniper QFX5100s Edge routing, Juniper EX4100, 4200, and 4300 (Stacked/Virtual Chassis), Cisco 3850/9300s (Stacked), Cisco WLC/ Cisco 3802/9130 Access Points.

Troubleshoot WAN: SD-WAN Overlay (Juniper QFX5100 - OSPF/BGP, IPv4/ IPV6) and SD-WAN Underlay (Versa FlexVNF), Python/Perl for network automation utilizing Python: Maintained 7000+ Network Switches, Routers and EATON UPS Devices across all Time Zones in the United States including Hawaii utilizing Python scripts with Netmiko/Paramiko. I’ve written these scripts with extensive error checking, logging, and complex conditions to be stable and efficient on large networks for SSH and HTTP Requests via API/Tokens; Meraki, Cisco, Juniper, Eaton, Infoblox, Zabbix via API Calls.

Meraki Dashboard - Administration, Configuration via Dashboard and API; Mainly focusing on Cisco CW9176I. Additionally, site surveying utilizing the Ekahau AI pro (Cloud) utilizing the SideKick 2.

Illumio Dashboard PCE (Rulesets, Workloads, etc) and VENs

GearHost Inc.
Network Engineer
April 2013 - September 2014 (1 year 6 months)
Responsible for network design, projects and support for GearHost’s co-located data center networks. Install and manage all data center firewalls, network core routers and switches. I provide an escalation path for support agent, provisioning/troubleshooting customer networks and VPN services. Also support Hyper-V virtualization services and provisioning of customer servers and networks. Managed a linux monitoring network utilizing Cacti, Nagios, NFSEN, and SmokePing. Oncall 24/7/365

Pacific Wireless Communications Pty Ltd
Pre-Sales Network Engineer
October 2010 - April 2013 (2 years 7 months)
Honolulu, Hawaii – Familiarity with architectural differences for RF propagation
– Skill in RF Survey, Design, implementation & certification
– Perform critical wireless network assessments, modeling & analysis
– Utilization of Oscilloscopes, Function and Signal Generators, Spectrum Analyzers, Distortion Meters, signal tracers, etc.

Designing of LAN/WAN/WLAN using Motorola, Alcatel-Lucent, Cisco, and other vendor equipment for pre-sale opportunities and projects. Partnered with the sales teams to develop winning proposals. Supported RFPs, RFIs, and technical proposals with high-quality architecture diagrams, BOMs, and written responses. Delivered compelling technical presentations and executive-level briefings. Acted as a technical liaison between customers, Cisco, and internal delivery teams.

Designed and implemented Point-to-Point, Point-to-Multipoint wireless networks utilizing 802.11 protocols (Standard and proprietary); Fresnel zones, link margins, RSSI, link calculations, RF design, LMR (Land Mobile Radio) Configurations and installations of analog and digital trunked radio systems. VoIP and RoIP configurations and installations.

Had the opportunity to travel to Midway Islands to assist in the troubleshooting of the terrestrial T1 link between Midway and Honolulu, Hawaii; utilized Wireshark, Cacti, SmokePing, Traceroute, Ping, and other network tools to diagnose a saturation T1 Satellite Link.

oDesk
Remote Network Engineer
2008 - 2013 (5 years)
I was an independent contractor that was responsible for successfully completing over 200+ contracts that consisted of remote configuration and troubleshooting of customer networks that included technologies as Cisco IOS, Foundry, Brocade, and Juniper SSG. Provided design work for wireless networks, customer networks(Cisco Switches, Cisco Routers, ASA Firewalls), capacity planning, T1 troubleshooting, IPSEC VPN configuration and troubleshooting, and Alarm System and IP Video system support, design and installation.

ViaWest
Network Engineer
2004 - 2010 (6 years)
Denver, Colorado
Installation, configuration, and troubleshooting of customer colocation networks and ViaWest IP backbone network systems which include technologies as Cisco IOS, Foundry, Brocade, and Juniper SSG. Provided support for Network Operations Center Staff, Sales Engineering and assisted with Network Architects on Network design planning for both customer and internal networks to ensure reliability and scalability in Co-location and Managed Services environments. Assisted the Network Architects in OSPF and BGP configurations, maintenance, and troubleshooting of Viawest IP backbone networks and customer colocation networks. In depth knowledge of IP subnetting of IPv4 and IPv6 Networks. RSTP, 802.11, 802.1Q, 802.3, VLANs, MPLS, Peering Networks, BGP LOA, BGP filtering and traffic engineering (Direct Supervision from the Network Architect Team).

Education

Cornell University
Course/Certificate, Python Programming · (November 2023 - April 2024)

Westwood College of Technology
Associate of Arts and Sciences (A.A.S.), Computer Systems Networking and Telecommunications · (2002 - 2004)

Honolulu Electronics Institute
Course Study, Industrial Electronics Technology/Technician · (1996 - 1998)

Google University (GooFu)
Doctor of Philosophy - PhD (Parody), Computers and Electronics · (September 1998 - December 2031)

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