TZ Martin

§ 00 — Selected work

Systems I have
built and shipped.

A record of standout projects across mobile, computer vision, data engineering, AI, and technical education — from a NASDAQ-listed marketplace to FDA-cleared motion analysis. Each entry: the work, my role, the technology, and what it became.

01Project Record
01

Wholesale automotive marketplace

NASDAQ: ACVA

ACV Auctions

Built the founding mobile application for ACV Auctions — a live, app-based wholesale marketplace that lets dealers inspect and bid on vehicles in real time from the lot. The app turned a slow, in-person auction process into a transparent mobile transaction, and the early product helped the company win the top prize at the world's largest business-plan competition. ACV went on to a public listing on the NASDAQ.

Role
Founding mobile engineer
Tech
Native mobile · real-time bidding · cloud backend
Outcome
$1M 43North top prize (2015) · IPO — NASDAQ: ACVA
Read the case study
02

Markerless motion capture · Scientific Analytics

FDA 510(k) cleared

DARI Motion

At Scientific Analytics, engineered the platform behind DARI Motion — a markerless biomechanics system that captures and analyzes full-body human movement. The work pushed motion analysis out of the lab: turning camera input into clinical-grade kinematics for orthopedics, sports medicine, and performance, in a product that earned FDA 510(k) clearance.

Role
Engineering — platform & data pipeline
Tech
Computer vision · motion analysis · data engineering
Outcome
FDA 510(k)-cleared single-camera motion analysis
Read the case study
03

Real-time video analytics

Computer vision

Virtruvia Systems

Founded and built Virtruvia Systems, a platform that extracts real-time analytics from a single camera — reading human motion and activity from ordinary video rather than specialized sensor rigs. The thesis: one camera, treated as an intelligent instrument, can replace expensive hardware and make spatial understanding accessible anywhere it is needed.

Role
Founder · engineering lead
Tech
Single-camera CV · real-time inference · video pipeline
Outcome
Real-time analytics from a single video stream
Read the case study
04

Healthcare infrastructure

Operating

Copilot Health

Currently CTO and co-founder of Copilot Health — AI medical agents for smarter, faster chronic care. The platform gives providers autonomous tools for care management and asynchronous workflows with EMR integration, and Ava, its voice AI health companion, supports symptom assessment, medication reminders, and care coordination around the clock. The work is independent and long-arc: healthcare treated as infrastructure, not a feature.

Role
CTO & co-founder
Tech
AI agents · voice · EMR integration
Outcome
Operating — autonomous agents for chronic care
Read the case study
05

Curriculum & technical education

Shipped

Google Cloud Certification

Co-authored Google's official Cloud Platform certification program and its hands-on lab exercises — the assessment and training path used to certify cloud engineers. Part of a broader teaching practice that has trained more than a thousand engineers worldwide for partners including Google, Appcelerator/Axway, ROI Training, and Global Knowledge.

Role
Co-author — program & labs
Tech
Google Cloud Platform · lab design · curriculum
Outcome
Official certification program + 1,000+ engineers trained
Read the case study
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