Allen Nyberg

Hands-on technical leader. I find the root cause of problems that cross hardware, network, and software, and I stay on them until they're actually fixed.

McFarland, WI · Madison areaallennyberg@gmail.comLinkedIn

About

I've spent 15 years working my way from field technician to escalation-level troubleshooting, the kind of problem that doesn't have an obvious answer. I started in the field: installing equipment, terminating cable, turning up systems. Then I moved into operations and support, and today I'm a senior escalation point at Iteris, supporting public agencies across 30+ states and Canada.

My work is diagnosis: digging through device logs and packet captures, isolating faults across hardware, network and timing layers, and working with engineering and hardware manufacturers until the root cause is actually fixed. One example: I traced a recurring overnight transmission outage on a roadside unit to a GNSS timing-chain fault.

I also lead and mentor a product support team, and I build small tools with Claude Code that make that team faster.

What I work with

Networking

TCP/IP, UDP, DNS, DHCP, VLANs, routing and switching, firewalls, NAT, SSL certificates, Wireshark packet analysis. CCNA-trained.

Remote access

WireGuard, Tailscale, Cisco Secure Client (AnyConnect), GlobalProtect, FortiClient, SonicWall, OpenVPN, used daily to reach customer sites.

Systems

Linux server administration, embedded Linux on ruggedized field hardware, Windows Server application installs, SQL and stored procedures for diagnostics, AWS-hosted SaaS.

Connectivity

Cellular IoT (LTE-M) provisioning and troubleshooting for deployed devices, GNSS timing diagnostics, point-to-point wireless links.

Monitoring and tooling

Prometheus, Grafana, Jira, Zendesk, Salesforce, REST APIs and JSON. Bash and Python scripts, written with AI assistance.

Building with AI

Small tools and REST API integrations built with Claude Code that make support teams faster.

Experience

  1. Jan 2021 – Present

    Product Support Manager

    Iteris, Inc.

    A senior technical escalation point for field-deployed hardware and SaaS products, supporting public-sector clients across 30+ states and Canada. Root-cause analysis from device logs and packet captures, daily troubleshooting of ruggedized embedded Linux systems and customer on-premises Linux servers, client REST API integrations, and hardware validation alongside the manufacturer’s engineers. Manages the product support team and writes its support documentation.

  2. Feb 2019 – Present

    IT Consultant

    Safe Communities of Madison-Dane County

    Lead IT resource for a Madison nonprofit: network infrastructure, router and firewall configuration, security, and infrastructure migrations with minimal downtime.

  3. Apr 2019 – Jan 2021

    Manager of Operations and Support

    TrafficCast International

    Ran operational support, staging, and hardware/software validation for field-deployed sensor and network technologies, working with engineering and field operations on hardware anomalies. Managed a team of up to 3. Acquired by Iteris.

  4. Nov 2016 – Apr 2019

    Staff Engineer

    TrafficCast International

    Level 1–2 technical support for the company’s field equipment and connected systems.

  5. May 2011 – Oct 2016

    Senior Field Technician

    TranSmart Technologies

    Led a field technician team: on-site installations, network cable termination, power systems, hardware provisioning, preventative maintenance, and system turn-ups.

Home lab

What runs at home:

  • Multiple access points, VLANs, managed switches, and hypervisors
  • Prometheus and Grafana monitoring
  • Synology NAS running Docker containers
  • WireGuard VPN
  • Home Assistant with Zigbee
  • Point-to-point wireless links I installed and maintain

Certifications and education

  • IT – Cisco Entry Networking Technician · Madison College, 2018
  • NVIDIA-Certified Associate: AI Infrastructure and Operations · in progress
  • Technical coursework, Networking and Information Technology · Madison College

Contact

Email allennyberg@gmail.com or find me on LinkedIn.