Curriculum vitae

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J. R. (Ralf) Lenz

[email protected] +639190761799 Murcia, Negros Occidental, Philippines LinkedIn profile

Summary

I am a top-tier systems, network, and security engineer with director-level experience, who delights in giving small and mid-market companies the technological capability and presence to outperform organizations many times their size.

Work experience

Network & Systems Manager

Monster Group Employment Services, Ltd. · Bacolod, Negros Occidental, Philippines

November 2024 – December 2025

Technical manager for an established energy broker in the Australian market.

Network Architecture & Implementation (Juniper/Ubiquiti)
Google Workspace Administration
Cloud-based VoIP Provisioning (8x8)
Microsoft Server (On-premise AD)
OS Imaging & Deployment (Windows 10 & 11)
Cloud-based EDR Deployment (Bitdefender)
Virtualization & Hypervisor Cluster Management (Proxmox VE)

Technical Consultant

Roundtree Global Enterprise, LLC. · Westcliffe, Colorado, USA

March 2024 – Present

Systems Engineer, Software Architect, and Instructor/Mentor for a startup specializing in data acquisition and telemetry using LoRaWAN technology.

Full Stack Development
Strategic Infrastructure Architecture
Project Management
Network Design (Juniper SRX/VyOS)
LoRaWAN Hardware (Milesight, RAK Wireless, Dragino, Makerfabs)
LoRaWAN Software (ChirpStack, MQTT, Custom Applications)
Virtualization & Hypervisor Cluster Management (Proxmox VE)

Investor/Advisor

Kinays Convenience Store · Bago City, Negros Occidental, Philippines

September 2023 – December 2025

Principal seed investor in 24/7 convenience store in a farming-oriented, rural Philippine community.

Engineering Consultant

Nordklett, Inc. · Salt Lake City, Utah, USA

February 2023 – Present

Systems & Network Engineering consultant for a managed datacenter/hosting environment headquartered in Salt Lake City, Utah.

Full Stack Development
Strategic Infrastructure Architecture
Project Management
Cybersecurity
Network Engineering (Juniper/Cisco/VyOS)
Dynamic Routing (BGP4, OSPF, IS-IS)
Virtualization & Hypervisor Cluster Management (Proxmox VE)

Director of Engineering

15toKnow, LLC. · King of Prussia, Pennsylvania, USA

May 2020 – April 2021

Principal engineer and architect of HIPAA-compliant tech stack for an innovative pandemic-related startup provider of in-vehicle medical consultation and COVID-19 testing.

Juniper SRX
Mobile Broadband
Full-stack Web Development
PHP8
Laravel
TypeScript
JavaScript
DevOps (CI/CD)
Systems Administration (Linux / FreeBSD)
Systems Architecture
Risk & Compliance
HIPAA
Payment Gateways (Stripe)

Director of Engineering

Fair Trade Outsourcing, Inc. · Wayne, Pennsylvania, USA

September 2018 – June 2022

Global technical executive manager and strategic technical architect for a mid-market BPO headquartered in Philadelphia, with fulfillment centers in multiple cities in the Philippines, Ghana, and Mexico. Oversaw growth from single-center operation (Iloilo, PH) to 8 geographically-divergent centers at the time of my departure, in addition to three datacenters (Los Angeles, Chicago, Amsterdam).

Management (Executive)
Strategic Infrastructure Architecture
Budgeting & Allocation
Remote Team Management
Project Management
Risk & Governance
Networking Hardware & Configuration (Juniper, Cisco, HPE)
Dynamic Routing (BGP4, OSPF, IS-IS)
Microsoft 365 Administration (Sharepoint/Intune/MDM)
Active Directory (Hybrid Azure/On-premises)
Group Policy Management
DHCP
DNS
L1/L2/L3 Technical Support

Senior Systems Engineer / Senior Developer

VPLS, Inc. · Orange, California, USA

June 2008 – January 2016

Dual role as a Senior Systems Engineer and Senior Web Applications Developer for a mid-sized datacenter / colocation facility (since absorbed by Evocative, post-separation).

L3 Technical Support
Infrastructure Engineering
VMware (ESXi/vSphere)
Ubersmith DE (Billing Integration)
PHP
MySQL (Percona XtraDB Cluster)
MVC Development
Systems Administration (FreeBSD, Linux)
DevOps (CI/CD)
Atlassian Suite

IT & Tech Contractor

Independent Consultant · Green Bay & San Francisco Metro Areas

October 2002 – June 2008

Provided a wide variety of technical services to hundreds of clients in the SF Bay and Green Bay, WI metropolitan areas, and around the world.

Sales
Customer Support (All levels)
Systems Engineering
Network Engineering
Full-stack Development
Infrastructure Engineering
Audio/Video Systems Integration
Structured Cabling
E-Commerce Consultation

Purchasing Supervisor

Fry's Electronics, Inc. · San Jose, California, USA

June 2001 – October 2002

Oversaw telecom/appliance purchasing for Fry's retail locations and e-commerce site (outpost.com/frys.com).

Sales
Procurement & Contract Negotiation
E-Commerce Sales & Marketing
Print Advertisement
District-level Management
Customer Service

Infrastructure Developer

Netscape Communications Corp. · Mountain View, California, USA

November 2000 – May 2001

Developed & maintained chat systems for learning/training facilities used by the Sun/Netscape iPlanet alliance.

Solaris Administration
Windows NT4 Administration
Web Server Administration (iPlanet Application Server)
Perl
Java
TCP/IP Development

Director of Web Development

KGM Web Design & Development, LLC. · De Pere, Wisconsin, USA

October 1998 – August 2000

Lead designer & system administator for small-scale IT service provider.

Systems Administration
Web Server Administration
Windows NT4/2000
Linux Administration
Perl
JavaScript
HTML/CSS
Sales & Customer Service

Education

West De Pere High School

August 1992 – June 1996

Strong performer in AP-heavy class load | Member of WI State Champion Math Team | Earned full scholarship to Notre Dame | Simultaneously supported campus IBM/ICLAS (Novell NetWare 3.11) network while attending school