Joseph Rosenbaum — Systems Architect & AI Engineer

cat /etc/who_am_i

15 years in production. Built from source.

profile.js

1  /**
2   * Joseph Rosenbaum
3   * Systems Designer &
4   * Full Stack AI Engineer
5   */
6
7  const profile = {
8    name:  "Joseph Rosenbaum",
9    base:  "Dallas, TX",
10    years: 15,
11
12   stack: [
13     "Node.js/TypeScript",
14     "Proxmox/Docker/LXC",
15     "LLM Agents + MCP",
16     "M365/Graph API",
17     "PowerShell/.NET",
18     "Caddy/Cloudflare",
19   ],
20
21   certifications: [
22     "CompTIA A+",
23   ],
24
25   education: {
26     school: "UT Dallas",
27     focus:  "Computer Science",
28   },
29
30   solve(problem) {
31     return this.automate(
32       this.document(problem)
33     );
34   }
35  };

I'm Joseph Rosenbaum — a Systems Architect and AI Engineer based in Dallas, TX with over 15 years in IT and a current focus on AI-integrated infrastructure, autonomous agents, and full-stack tooling for MSP operations.

I started on the bench at PC ASAP writing AutoIT diagnostic tools. Now I build MCP servers, operational dashboards with LLM chat, autonomous Telegram agents, and manage 20+ VMs on a Proxmox cluster with Caddy reverse proxy and Cloudflare tunnels.

I also build web apps and resumes for friends, run a 4-node local inference cluster for AI workloads, and designed a church song sheet generator with PDF pipeline and column-balancing algorithm. I ship tools that solve real problems and deploy them to production infrastructure I built from scratch.

[PCT Support] [Phonecheck] [Liss Consulting] [Willowbend Systems] [PC ASAP] [AAHC Inc.] [URC]

cat /var/log/work_history

Parsing work history... done.

Systems Architect / AI Engineer @ PCT Support

📍12820 Hillcrest · Dallas, TX 📅Oct 2021 → Present ⚙Infrastructure + AI Automation

Built 7 custom MCP servers (TypeScript/Node.js) integrating Autotask, Datto RMM, IT Glue, SaaS Alerts, Pax8, M365 Graph, and OneDev — enabling AI agents to query and act across the entire MSP stack.
Designed and deployed k1-stack-dashboard — an operational dashboard with LLM-powered chat, tool-calling, and client compliance ranking, live at saas.pctbin.com.
Built RC-AT — a .NET 10 TUI application that bridges RingCentral call data into Autotask tickets with LLM-assisted classification and description generation.
Deployed and manage 20+ VMs/containers on Proxmox with Caddy reverse proxy, Cloudflare tunnels, automated backups, and IP-restricted access.
Stood up a 4-node local inference cluster (Strix Halo) with LiteLLM proxy for on-prem AI workloads — tool-calling, chat, and agent backends.
Serve as the senior helpdesk resource — primary escalation point for complex Windows, macOS, and Office 365 issues across the entire client base.
Ticket-based phone/email desktop & application support via AutoTask; own full lifecycle from intake to resolution and documentation.
Administer Active Directory, Azure AD, and Exchange Online: user provisioning, group policies, mailbox management, license assignments.
Support and maintain Nextiva VoIP phone systems — user setup, call routing, and troubleshooting.
Designed and implemented Power Automate workflows linking SharePoint Lists, Planner, and Forms — automating maintenance alerts, rent increase notifications, and business processes for clients.
Led full Microsoft 365 tenant onboarding for AAHC Inc. (16 users): domain setup, MigrationWiz mailbox migration, Exchange Online configuration, Keeper password management rollout.
Deployed Windows 365 Frontline cloud desktops for URC radiology practice: Intune, Entra P1, licensing strategy, and remote desktop provisioning.
Built a PowerShell function hosting server enabling team-wide one-liner access via irm scripts.net/fn | iex.
Developed zero-touch disk remediation — RMM-triggered PowerShell using Chocolatey and gdu to resolve disk alerts with no customer interaction.
Implemented ISP failover solution for a client suffering a long-term outage: tethering bridge as immediate fix, upgraded to permanent LTE failover.
Designed global email signature templates consistent with client branding during tenant onboarding.

Onsite Service Engineer @ Phonecheck

📍350 Lakeside · Flower Mound, TX 📅Jun 2021 → Oct 2021 ⚙QA & API Testing

Manual QA testing across test and production builds; submitted detailed bug reports and feature requests via JIRA.
Facilitated third-party feature development through API testing and validation using Postman.
Collaborated with outsourced development team and international support staff via Slack, Discord, and WhatsApp.
Analyzed terminal and debug output to identify root causes and communicate findings to engineering.
Provided onsite troubleshooting and acted as product ambassador for training sessions.

Client Services @ Liss Consulting

📍One Penn Plaza · New York, NY 📅Dec 2020 → May 2021 ⚙T1 Desktop & Application Support

T1 ticket-based phone/email desktop support via AutoTask/Datto across Windows AD/Azure and macOS environments.
Configured and supported teleworker setups including Microsoft RDP and Cisco Meraki VPN.
Administered Exchange Online, Mimecast, and GSuite messaging environments; managed 3CX VoIP system.
Maintained VM server infrastructure via vSphere; documented runbooks in IT Glue.

Network Analyst @ Willowbend Systems

📍3820 American Dr · Plano, TX 📅Dec 2018 → Dec 2020 ⚙MSP Environment

Full-stack MSP support: ConnectWise Control/Automate/Manage — Windows AD/Azure, Citrix VDI, macOS, Office 365.
Deployed and configured Mitel Cloud Connect VoIP systems end-to-end for enterprise clients.
Scripted custom batch automation in CMD, PowerShell, and Visual Basic to eliminate repetitive tasks.
Installed and managed enterprise networking hardware including HPE switches and SonicWall firewalls.
Configured SharePoint and Citrix ShareFiles cloud hosting; administered Veeam VM backup.
Managed email security via Solarwinds MailAssure and Barracuda Networks.

Senior Technician @ PC ASAP

📍4727 Frankford Rd · Dallas, TX 📅Apr 2014 → Dec 2018 ⚙Hardware, Software & Automation

Led all onsite and in-store hardware/software repairs; managed ticket-based phone/email support queue.
Created AutoIT diagnostic tools to automate and enhance the PC repair pipeline — cutting technician time significantly.
Installed and managed small-business IT and A/V hardware and software.
Authored internal tooling integrating with RepairSHOPR CRM for automatic diagnostic logging and unit tracking.

cat /proc/tech_stack

Loaded modules: Technical Expertise

OS & Environments

Windows Server Active Directory Azure AD / Entra macOS Linux (Debian/Ubuntu) Citrix VDI Office 365 Windows 365

Windows / AD95%

Azure / Entra / O36588%

Linux Server Admin75%

AI & Development

Node.js / TypeScript MCP Protocol LLM Agents Tool-Calling .NET / C# PowerShell REST APIs Claude / LiteLLM

Node.js / TypeScript90%

LLM Integration / MCP88%

PowerShell / .NET92%

Networking & Infra

SonicWall Unifi / UDM-Pro VLANs HPE Hardware Cisco Meraki VPN Netbird / Wireguard Network Cabling A/V Cabling

Unifi / VLANs88%

Netbird / Wireguard VPN85%

Infrastructure & DevOps

Proxmox VE Docker / Compose LXC Containers Caddy / Reverse Proxy Cloudflare Tunnels systemd Git / OneDev Veeam / PBS

Docker / Compose83%

Proxmox80%

Messaging & VoIP

Exchange Online Mimecast GSuite Nextiva 3CX Mitel Cloud RingCentral MigrationWiz

Exchange / M36591%

VoIP Systems86%

Platforms & Tools

ConnectWise AutoTask / Datto Intune JIRA IT Glue Obsidian / PKM Postman Keeper Security Chocolatey

tail -f /var/log/wins

git log --oneline --notable

cat ~/pc-automata

AutoIT

CRM-integrated diagnostic automation hooking into RepairSHOPR — turned a multi-step manual repair workflow into a single-click operation with automatic logging.

cat ~/mcp-server-suite

TypeScript / MCP

Built 7 Model Context Protocol servers from scratch — Autotask, Datto RMM, IT Glue, SaaS Alerts, Pax8, M365 Graph, and OneDev. Gives AI agents full read/write access to the MSP stack via standardized tool-calling.

cat ~/ps-script-server

PowerShell

Self-hosted PowerShell function server enabling one-liner deployment across all client machines via irm scripts.net/fn | iex — no manual file transfers ever.

cat ~/netbird-vpn-deployment

Netbird / WireGuard

Designed and deployed a Wireguard mesh VPN on a UDM-Pro (via SSH + UDM Boot for NAT) enabling seamless site-wide and offsite access with conditional trust per site — replacing a fragile legacy VPN stack.

cat ~/web-portfolio

HTML / CSS / Caddy

Designed and deployed custom web resumes and sites for friends and clients — TUI-themed dark layouts, custom domains, Caddy reverse proxy on a VPS. Hosted at ericbolanos.com, hirenesto.com, macsperformance.fitness.

cat ~/proxmox-homelab

Proxmox / Docker

Production-grade homelab running a Proxmox cluster with VM/CT provisioning, Docker Compose services, self-hosted infrastructure, and a Netbird mesh overlay network. Daily driver for testing and skill development.

cat ~/rc-at

.NET 10 / C#

Terminal UI app bridging RingCentral call data into Autotask tickets. LLM-assisted ticket classification, description generation, and company lookup. Built with Terminal.Gui and async patterns.

cat ~/k1-stack-dashboard

Node.js / Express

Operational dashboard with LLM-powered chat, tool-calling loop (max 4 rounds), client compliance ranking, and real-time connectivity checks across Autotask, Datto, IT Glue, and M365. Deployed on Proxmox with systemd.

cat ~/songsheet-generator

Node.js / Puppeteer

Full-stack song sheet generator for church worship. 49-song database, greedy column-balancing algorithm, 3-column HTML layout engine, and HTML-to-PDF pipeline via Puppeteer. Dockerized and deployed with Caddy.

15 years in production. Built from source.

Parsing work history... done.

Loaded modules: Technical Expertise

git log --oneline --notable

Establishing connection...