I'm Zac.
I build things.

Full-stack engineer and consultant with 20+ years of experience. Currently building threshold.fit and helping teams ship through Zadell Consulting.

Currently building a fitness platform that helps people train smarter. It's the product I wanted to exist, so I'm making it.

Nike, Facebook, Unity, and dozens of startups. I've built systems at every scale, from scrappy MVPs to platforms serving millions.

Architecture, AI integration, full-stack delivery. I help teams build the right thing the right way — then I help them ship it.

What I Work With

System Design

Event-Driven Arch

Microservices

Tech Strategy

Next.js

TypeScript / Node

React Server Components

GraphQL Federation

RAG Pipelines

Agentic Workflows

LLM Integration

Vector Search

AWS / Multi-Cloud

Kubernetes / Docker

Infrastructure as Code

Zero Trust Security

I'm taking on select consulting engagements. Let's talk about what you're building.