Yichen Jia - Portfolio

Hi, this is Yichen.

I design simple, functional, and playful experiences for complex systems and technical domains. I run user research and code to facilitate my process.

Designed and shipped

developer tool

release pipeline

API catalog

collaboration tool

chat ui

LLM agent

3D design tool

Coinbase project cover image - Internal Developer Platform UIs

Coinbase | 2024 - Current

Internal Developer Platform (IDP)

IDP helps Coinbase engineers discover reusable services, bootstrap new projects, and manage releases. As the sole designer working on internal developer experience, I implement the design process within a cross-functional team by clarifying user needs, hosting design reviews, workshops, as well as conducting research. I shipped 0→1 features such as new service maker and release pipeline while crafting a design system for scale.

Coinbase project cover image - Tax center landing page

Coinbase | 2025

Tax center refresh

I refreshed the tax experience for Coinbase consumer users. Under a tight timeline, I ramped up quickly in a new domain, streamlined design handoff, and partnered with engineers across time zones to launch in time for the 2025 tax season.

Millons

of user influenced

Global

Market

Microsoft Teams | 2021 - 2024

Large event (Townhall) and its engagement tools

I led the design vision for a large-scale event engagement framework, creating e2e experiences for features such as chat, reactions, raise hand, and Q&A. I collaborated across orgs to align on strategy and roadmap. We shipped Townhall MVP in 2023 and launched more engagement features in 2024 to drive monetization.

2.8M

Townhall MVP MAU

$14M+

Projected revenue

36.4%

MVP MoM growth

170

NSAT score

Microsoft Teams | 2024

Event assistant via LLM

While designing a group chat to support event backstage collaboration, I envisioned a LLM assistant building on top. I initiated the design-led project and evangelized the concept across teams. My vision went on to influence my team’s roadmap after I left.

Persons v-team

Patents filled

Teams project cover image - Meeting options UI across platform

Microsoft Teams | 2021 - 2022

Meeting option redesign

I redesigned and scaled meeting options across devices and platforms to improve ease of use and consistency. I defined new interaction patterns to support complex feature setups and built a Figma library to streamline the request intake process.

2.6M

MAU influenced

Teams supported

Power Todo: A design checklist

Designed and prototyped Figma plug-in to introduce design process into daily tool

GPT-generated speaker bio

Led 1 PM and 2 engineers to integrate LLM into our product with eng demo built

Networking session

Led visionary design to solve virtual social networking scenario with 1 patent filled

MIT Design heritage lab | 2019 - 2020 | UX + Front-end

Design Heritage Platform (DHP)

DHP is a web-based tool for researchers and designers to share 3D models and create spatial animations. As both the first UX designer and a front-end developer, I led the creation of a new design system, refactored major interfaces using Vue.js, as well as designed and implemented core features. Read more east

25K

Users in 2021

200+

Projects

5918%

YoY growth

10+

New features

MIT | 2019 - 2020 | UX + Front-end

Model viewer redesign

As part of my work on DHP, I redesigned the model viewer—a critical space where users inspect and edit the 3D models they have uploaded, as well as a key touchpoint in new user orientation.

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