David Matayoshi
AI product design

My focus across UX & AI product

How I show up on the team.

AI product UX

The moments where models meet people: expectations, empty states, errors, and trust—so AI features feel usable, not magical.

AI design toolchain

Workflows, evals, and tooling I build so teams can design with models.

Product systems

Patterns and components that keep AI and classic product UI speaking the same language as things grow.

Research → insight

Just enough research to decide—findings that land with PMs and engineers, not decks that stall the week.

Ship / measure

We name what “good” looks like before launch, then design so we can tell whether we hit it.

Get in touch

Need an AI designer or a design partner who builds the toolchain too? Let’s talk.

Message me on LinkedIn

LinkedIn
David Matayoshi stipple portrait

Who’s behind the work?

15+ years in the chair—from global enterprise and startup through fintech and consumer. I still sit closest to the shipping surface: the screens, the calls, and the messy middle that turns research into something live.

Leadership at scale

Led a four-designer team shipping to 16M+ users in 10+ languages, then rose to UX Director at Lendio.

AI-native craft

Designing AI products, and the AI-powered workflows behind them.

See my experience

Selected work worth a closer look

KYBERCEL
AI product

Kybercel

A governance layer for the agentic enterprise. Agent output is checked against a company's own rules before it ships.

View case study
Kybercel title card: The Infrastructure Behind Intelligent Products, over a dark grid.
HOMETOWN
AI feature

AI Schedule Importer

Athletic directors rebuilt every schedule by hand before they could sell a single ticket. I designed an AI importer that pulls existing schedules from files, links, and screenshots straight into Hometown—and shipped it as a working prototype in code.

View case study
Review and Import modal over the Varsity Football schedule, listing extracted games with date, time, opponent, venue, and status.

Take a look at my past experience

Roles that shaped how I design.

See full resume
May 2026 — Present

Founder

Kybercel · independent

Invented and designed an agentic AI governance product that checks agent actions against human-defined rules before they run, then built it with a developer.

Jun 2025 — Sep 2026

Senior User Experience Designer

Hometown.com

Sole designer for a multi-surface platform used by 7,000+ schools: ticketing, fundraising, a fan app, and a gate app.

Jan 2023 — Mar 2025

UX Design Consultant, Owner

SparkVault

Designed an AI-driven marketing platform that turns customer insight into outbound messaging.

Mar 2023 — Oct 2024

Senior Manager, User Experience

Pura

Led a team of five across app, web, and e-commerce. As IC, cut a 17-step device setup to three screens (~80% fewer steps).

Mar 2022 — Jan 2023

User Experience Director

Lendio

Promoted from senior designer within eight months. Sole designer on a tax-credit product that drove $3M+ in first-quarter revenue, and hands-on for the flagship mobile app.

May 2016 — Mar 2022

Senior UX Designer, Design Lead

The Church of Jesus Christ of Latter-day Saints

Led four designers for two years. UX across eight products for a 16M+ user base in 10+ languages, including multivariate testing.

Aug 2018 — Nov 2021

Principal UX Designer

StageBase · part-time

Built the UX discipline from scratch and led the product design behind a $1.5M pre-seed raise.

Mar 2010 — May 2016

Manager of Digital Content / UX

Central Washington University

Led UX for the web platform, enterprise system, and native app. Directed a 13-person team and a redesign that saved $1M.

What collaborators say

“
David is an outstanding problem-solver and collaborator, combining creativity with strategic thinking to tackle challenges and elevate customer experience. His commitment to quality is unwavering—he never compromises on customer or brand experience. As I've witnessed David managing his team, I've seen him be both respectful and empowering, always advocating for his team and aligning their strengths to create value. Working with David is genuinely enjoyable; his positive energy and dedication make every project smoother and more engaging. Any team would be lucky to have someone as driven, thoughtful, and skilled as David.
Rachel Beckstead
Sr. Director of Product Management at Pura
“
I had the privilege of bringing on David to our team at Lendio, and I have no regrets. We immediately put him to work on one of the most complex, technical, and ambiguous areas of product, and he made an almost immediate impact. His impact continued to grow as he took on new opportunities, most especially his contribution of our Lendio Product Vision tiger team and his transition to Director of Lender SaaS. David is a leader who leads with integrity, smarts, and humility. I hope I get the chance to work with him again.
Grant Zabriskie
Senior UX Manager, Lendio
“
David is a talented UX Designer with a knack for diving deep and figuring out complex systems and how to improve them. He's a strong leader who can give good design critique and stoke your brain to the next level of what's possible to make your design better. A humble guy with a great sense of humor who is fun to work with and helps make those around him better.
Isaac Gerke
Director of User Experience, Lendio
“
David is a joy to work with, including his kind personality, positive attitude, and his super power of making sense of the most complex problems. Put a dry erase marker in his hand and watch him diagram the problem with ease. Everyone loves David and any company will benefit from having him!
Jon Smith, MBA
Senior UX Designer, Pura