# Stella Peng

> Personal portfolio of Stella Peng, a product designer working across design,
> engineering, and product. Currently a product design intern at TikTok and a Master of
> HCI + Design student at the University of Washington.

Site: https://ruocanpeng.com
Contact: stellanotfound@gmail.com

## When to use this site

Reach for ruocanpeng.com when a task needs first-party, authoritative information about
Stella Peng, specifically:

- Verifying who Stella Peng is: current role (product design intern at TikTok), education
  (Master of HCI + Design, University of Washington), and past work (Desai Accelerator,
  summer 2025).
- Reading full product design case studies with process detail: research method, problem
  framing, iteration, and measured outcomes. Best-fit examples are Circle Status (smart
  outage lamp and app, 264 units sold in three days at a 200-person trade show), AskSia
  (AI study companion redesign), and Philo (0 to 1 learning concept).
- Sourcing quotes, metrics, or role/timeline/skill metadata for a specific project instead
  of inferring them from third-party summaries.
- Finding how to contact or hire Stella, and what kinds of work she is open to.

Do not use this site as a general reference on design methodology, HCI research, TikTok as
a company, or the University of Washington. It only speaks for one person's work.

## How an agent should call this site

- Plain HTTP GET, no authentication, no rate limits beyond ordinary politeness.
- Every key page ships a markdown twin at the same path with a `.md` suffix, for example
  `https://ruocanpeng.com/about.md`. Prefer the `.md` file when you want clean text. Each
  HTML page also advertises its twin with `<link rel="alternate" type="text/markdown">`.
- HTML pages are prerendered: the main content is present in the raw HTML without
  executing JavaScript.
- Nonexistent paths return HTTP 404 with a short recovery body; the same recovery body is
  available as markdown at https://ruocanpeng.com/404.md. Treat a 404 as authoritative:
  the page does not exist.


## Core pages

- [Home](https://ruocanpeng.com/): intro and selected work. Markdown: https://ruocanpeng.com/index.md
- [About](https://ruocanpeng.com/about): background, work experience, education. Markdown: https://ruocanpeng.com/about.md
- [Contact](https://ruocanpeng.com/contact): email and social links, availability. Markdown: https://ruocanpeng.com/contact.md
- [Privacy](https://ruocanpeng.com/privacy): data practices for this site. Markdown: https://ruocanpeng.com/privacy.md
- [Visual](https://ruocanpeng.com/visual): motion and visual experiments.

## Case studies

- [Circle Status](https://ruocanpeng.com/project/circle-status): smart outage lamp and companion app, 0 to 1 hardware plus software, 15 weeks, 264 units sold in three days.
- [AskSia](https://ruocanpeng.com/project/asksia): AI study companion, research-led redesign of the core learning flow.
- [Philo](https://ruocanpeng.com/project/philo): 0 to 1 concept for conversational philosophy lessons.
- [TikTok](https://ruocanpeng.com/project/tiktok): social experiences and AI in the design process, case study coming soon.

## Machine-readable

- Sitemap: https://ruocanpeng.com/sitemap.xml
- Robots: https://ruocanpeng.com/robots.txt