Des Moines, Iowa · Senior Infrastructure Engineer

Troy (T.J.) Siedsma

I'm an IT professional driven by a desire to learn and build things. Twenty years in, that's taken me from PC repair and front-line support to enterprise virtualization, backup and multi-site infrastructure.

Today I'm a Senior Infrastructure Engineer at Community Choice Credit Union, and before that I was an IT Systems Administrator at the Iowa Lottery. I own and operate Lithium Hosting, which I started in 2006, and I build commercial software. Earlier I founded and ran a managed services provider for eight years.

Community Choice Credit Union

Current

Senior Infrastructure Engineer, Microsoft Cloud and Security. Hybrid infrastructure and identity across Windows Server and Active Directory, Microsoft 365, Entra ID and Intune, with a lead role in incident response and disaster recovery.

WheelingTrips

Operational

A production SaaS trip planner for off-road and overland travel. Multi-day route planning, per-rig fuel math, and group coordination for people who wheel together. Solo built and solo operated, live with paying-tier billing.

  • Mapping, routing and geocoding sit behind provider contracts, so switching vendors is a config change rather than a rewrite. AWS Location today, Mapbox before it.
  • Real billing: plans, quotas, free trials, and graceful handling when an account downgrades while over quota.
  • Operated, not just shipped. Deploys, queue supervision, log rotation and incident diagnosis are all mine.

Laravel · Livewire · AWS Location · Stripe · ~2,400 tests

LiBilling

In deployment

A commercial billing and provisioning platform for web hosting companies, built solo as a modern alternative to WHMCS. It runs the full customer lifecycle: storefront and checkout, payments through Stripe and PayPal, domain registration, and automated provisioning onto cPanel, ApisCP and SolusVM.

It's structured as roughly forty Composer packages, so every integration is a genuine plugin rather than a fork point. Selling software also meant shipping everything around it: licensing, a browser-based installer, an upgrade path, and a documentation site.

Laravel · Livewire · Filament · ~40 packages · 5,000+ tests

Lithium Hosting

Operational

A web hosting provider I've owned and operated since 2006. Every layer is mine to run: servers, mail, DNS, storage, billing and support, and the uptime obligations that come with all of it.

Linux · KVM · Postfix/Exim · WireGuard · Prometheus/Grafana

Integrity Computers

Decommissioned

A managed services provider I founded and ran for eight years, serving small businesses across central Iowa. Networks, servers, backups, and the day-to-day support that keeps a small company working.

Infrastructure

  • VMware vSphere
  • Veeam Backup & Replication
  • Windows Server / AD
  • Linux / Proxmox VE
  • Fortinet

Cloud & identity

  • AWS
  • Microsoft 365 / Entra ID
  • Intune
  • Okta
  • DNS / PKI
  • Email auth (SPF, DKIM, DMARC)

Automation & dev

  • PowerShell
  • Ansible
  • Bash
  • PHP / Laravel
  • Prometheus / Grafana / Loki