
William Koonz
Design Engineer
I design and build products from first idea to shipped software.
I work across product strategy, UX/UI, engineering, and AI, wherever the problem needs me. Currently building Shado, an AI-guided reflection product I took from concept to the App Store.
- Figma
- SwiftUI
- Claude
- OpenAI
- React
- Next.js
- TypeScript
- Supabase
- Python
- Node.js
- PostgreSQL
- JavaScript
- GitHub
- Webflow
- Git
Experience
Shado
Apr 2026 – PresentFounder · AI Product & Design Engineer
Founded, designed, and shipped an AI-guided reflection app for iOS. Own it end-to-end: product strategy, UX/UI and design system, AI behavior and personalization, SwiftUI, Supabase/Postgres architecture, and App Store release.
Figma / SwiftUI / Supabase / PostgreSQL / Claude Code
Contract & Freelance
Jul 2024 – Mar 2026Product Designer
Contract and freelance product design for agencies and early-stage product teams across web apps, crypto/DeFi, and early-stage software, turning ambiguous requirements into user flows, interaction models, design systems, and developer-ready prototypes.
Figma / Prototyping / Design systems / Developer handoff
Finalform
Mar 2024 – Aug 2025Founder · Product Designer & Developer
Designed and shipped an AI-powered iOS calorie tracker used by 200–300 people, with food logging through photos, voice, and conversational text.
Swift / SwiftUI / Supabase / OpenAI API / Figma
Goodkleen
Mar 2023 – Feb 2024Founder
Founded and ran a residential cleaning company. Designed the brand and Webflow site, integrated booking and contractor scheduling, ran acquisition and service delivery, and exited by transferring the customer base and operations to two contractors.
Figma / Webflow / BookingKoala / Operations
MetaPharm
Oct 2021 – Mar 2022Founder & Product Lead
Founded and led pre-launch product for a play-to-earn game and NFT ecosystem, coordinating 12–15 contributors and partners across engineering, game design, illustration, branding, growth, and community.
Product strategy / Web3 / Branding / Community
Self-employed
Sep 2017 – Oct 2021Quantitative Crypto Trader & Strategy Developer
Built and operated systematic crypto strategies across low-liquidity markets, arbitrage, and momentum, progressing from manual validation to automated execution and risk controls. Also provided paid strategy and automation consulting from 2018–2020.
Python / Node.js / CCXT / WebSockets / REST APIs