I'm Brent LaRue, a product designer who co-founded Circle Medical and helped build it to $114M on $12M raised.

Product Designer, 2x YC Founder, Olympian. Based in Zürich 🇨🇭

Springli

Practice automation for private practices

Swiss practice assistants spend most of their day on the phone. I designed an AI agent to handle patient communication end to end, and the brand and landing page that carried it.

See the work →
Fieldwire by Hilti

A design system for the field

I built Fieldwire's mobile design system backwards from production. Every inconsistency in the shipped apps became one token, style or component, and light, dark and three typefaces became modes of the same variables.

Explore the system →
The Fieldwire list component in a real screen, in light and dark mode
A red container, a red van and an open toolbox
Hilti

Finding the real problem with ON!Track's storage assets

Storage assets had a reputation for bad UX and churn, and nobody knew how bad. My research found 25+ issues, sorted them by severity and effort, and traced the worst to one root cause no one had named.

See the research →
Hilti

Software Design System

Hilti had no shared design language across mobile and web. I built their first design system: components and documentation, all within strict brand guidelines.

Explore the system →
Real-time insurance verification flow
Circle Medical (YC S15)

Real-time insurance verification

Not understanding insurance is one of the two biggest reasons people delay going to the doctor. I designed a real-time verification system that removed that friction at the moment of booking, laying the foundation to reach 400,000 patients and over 2 million appointments.

See how it worked →
Side projects

Icons, swag, illustrations and more

An assortment of hobby projects from icons, swag and illustrations to a Swiss vintage steel bike restoration.

Browse the projects →
Cycling icons and side project illustrations

People I’ve built with

Latest writing

View all →

Nov 2, 2026

Designing When Everything Is Easy

AI made building cheap, and the cost of building was quietly doing two jobs: filtering bad ideas and signaling care. What five YC Design Review episodes say about designing with AI now.

Oct 21, 2026

I Took Garry Tan's Advice and Built My Own AI Brain

Ten weeks ago I made the first commit on my own AI brain: a folder of markdown pages, skills and scripts, run by Claude Code on an old MacBook at home. What it is, what I learned building it, and what it changed.

Aug 20, 2026

Metric Theater

The wellness industry sells the tip of the performance pyramid, and four incentives make that the rational thing to do. Why health products detect and treat, wellness products measure, and almost everyone is still at the base.

Aug 18, 2026

I Gave Myself an Hour

One hour to find out how far an AI agent could get building a real app. Eight months later I still open the result a couple of times a week. What The Signal is, and what building it taught me about product work.

Mar 3, 2026

Healthcare Waste Is Organ Fat, Not Belly Fat

The most common thesis in healthcare investing is that the system is bloated. That's right, but the waste isn't sitting in a pocket waiting to be removed. It's wrapped around every critical function.

Nov 29, 2024

From Track to Tech: A Sprinting Mindset for Building Resilient Startups

An interview with Pioneer Fund on how elite athletics training shaped my approach to building Circle Medical, from managing intensity to embracing uncertainty.

Brent LaRue competing at the 2012 London Olympics
Before all of this

400m hurdles at the 2012 London Olympic Games

Athletics was my first love, and competing at that level taught me things about discipline and pressure that still shape how I build.

Read the story →