About
I'm Josh. I build things that work.
I'm a full-stack developer who specializes in turning business problems into working software — quickly and with minimal hand-holding. If you have a vague idea, a spreadsheet you hate, or a process you want automated, I'm the person who can take that and make it real.
I've built a full insurance renewal management system that a client actively pays a monthly retainer for. I've built a contracting company's entire web presence from scratch with near-zero direction. I've built a cross-platform mobile app with AI recipe generation and Firebase integration.
What I do differently: I use AI tools throughout my development process, which means I build faster, catch bugs earlier, and deliver more for the same cost. And when I ship something, I don't disappear — I maintain it, improve it, and grow it with you.

Josh Holzhauser
Full-Stack Developer · Builder
How I work
What makes me different
I own the entire build
No handoffs between design, dev, and QA. I take it from concept to deployed — faster and with fewer broken phones.
I need minimal briefing
You share your vision. I ask the right questions. Most of my clients never write a spec document.
I build relationships
I'm not a gig worker. I maintain what I build. Most clients are still working with me months or years later.
Technical Stack
Stack I trust in production
Frontend & Mobile
Backend & Data
Infrastructure
AI & Integration
Platforms shipped
Engineering Log
How this site was actually built.
The same process I use for client work. Infrastructure early, component-first, ship fast.
Design System First
FoundationBefore any codeLocked the color palette, type scale, and motion rules in a single CSS file. No design tool, no separate handoff step — the constraint forces fast, consistent decisions.
Infrastructure Early
BackendDay 1Firebase Firestore for lead capture. Vercel for hosting. No backend servers to provision, no databases to manage — infrastructure that costs nothing when idle.
Component-First Build
FrontendDays 2–58 homepage sections, custom typewriter, comparison table, responsive nav. Each component works in isolation before it connects to anything else — that's what keeps refactors cheap.
The Scroll Timeline
Signature FeatureDay 6The original terminal demo showed what code does. The scroll-pinned timeline shows what code means — the whole delivery loop from brief to shipped result, visible and interactive.
Lead Pipeline
ConversionDay 7Custom 3-step contact form writing directly to Firestore. No third-party booking embed, no iframe dependency. Admin dashboard protected by Google Auth.
Deployed
LaunchDay 8Connected to Vercel via GitHub. Auto-deploys on every push. Zero ongoing infrastructure cost. The whole thing runs for free until it needs to scale.