Hongyuan (Harry) Wang

Hey, Im Hongyuan(Harry) Wang

Hey, Im Hongyuan(Harry) Wang

Part engineer, part designer: I design products and build the front end myself.

Part engineer, part designer: I design products and build the front end myself.

Part engineer, part designer: I design products and build the front end myself.

Product design for B2B SaaS, e-commerce, and AI — research and design systems through to the shipped interface, with AI in the loop.

Product design for B2B SaaS, e-commerce, and AI — research and design systems through to the shipped interface, with AI in the loop.

NOW

Founding Product Designer, early-stage startup

PREVIOUSLY

WAYZ · Meituan · Joyy · SCADpro × BMW, Deloitte, AdventHealth · The Sentinel by Yuvoice

AI-assisted product work

Projects where AI was part of how I designed and built — from assisting single steps to running the process end to end.

Product design work

Four end-to-end case studies — research, information architecture, design systems.

Build log

I design in Figma or straight in code, then build working software with AI coding agents, tests included.

LAST ENTRY ·

2026.09

Sideby · Internal tool

·

with Claude

Built a Python simulator to test when Sideby’s AI companion may speak first

~5,000 lines of Python: 20 injected faults, 18,000 random states, synthetic 180-day replays.

with Claude

2026.09

Sideby · Shipped

·

with ChatGPT, Claude and Cursor

Prototyped 4 Sideby features with AI, then built and shipped them

Send animation (4 directions, 13 prototypes), onboarding, unlock and empty-state prompts. Each final now runs in the iOS app.

with ChatGPT, Claude and Cursor

2026.08

Fugi · Working build

·

with Codex and Claude Code

Designed and built Fugi end to end with AI agents, without a single Figma file

An AI skill extracted a reference design system into tokens; the design lives in a component lab, and tests fail on raw hex colors.

with Codex and Claude Code

2026.08

Fugi · Working build

·

with Codex and Claude Code

Set up Fugi so AI agents build from one decision log and 89 task contracts

126 numbered product decisions; only the lead agent may change them. 27k lines of TypeScript, ~850 tests.

with Codex and Claude Code

2026.08

Sideby · Shipped to beta

·

with Claude Code

Wrote Sideby’s canon and AI specs, then turned them into 46 live prompt modules

7 canon docs and 4 engineering specs became a Claude skill and 46 production prompts in 8 roles, from persona to memory.

with Claude Code

2026.08

Followin · Working prototype

·

with Claude Code

Built Followin, a job-search copilot that can tell you a résumé is ready to send

113 commits in 9 days, ~540 tests. After I caught it inventing quotes, the model now cites line numbers and code cuts the text.

with Claude Code

Experience

Pungoworld Inc.

Founding Product Designer

2026.01 - Present

The Sentinel by Yuvoice

Product Designer

2026.01 - 2026.05

AdventHealth X SCADpro

UX Designer

2025.03 - 2025.06

Joyy

Product Designer

2024.06 - 2024.09

BMW X SCADpro

UX Researcher

2024.01 - 2024.03

Meituan (China’s DoorDash)

Product Designer

2023.12 - 2024.01

Deloitte X SCADpro

UX Designer

2023.09 - 2023.11

WAYZ Information Technology Co., Ltd

Product Designer

2021.09 - 2021.12

CAPABILITIES

Product Design · Interactive Design · AI Product Design · Information Architecture · Graphic Design · Design Systems · UX Research · Usability Testing · Frontend Development · Product Strategy · Branding · Rapid Prototyping

ALSO WORKING WITH

Cursor · Python · HTML / CSS / JavaScript · Java

Based in Saratoga, California · Open to product design roles

Designing the next product?

Let’s build it together.

I read every message — usually replies within a day.

Based in Saratoga, California · Open to product design roles

Designing the next product?

Let’s build it together.

I read every message — usually replies within a day.

Based in Saratoga, California · Open to product design roles

Designing the next product?

Let’s build it together.

I read every message — usually replies within a day.

Copyright © 2026

Copyright © 2026