Jieul Jang

Notes on product, taste, and the in-between. Also building AI workflows and agents.

Currently Senior Director, Business Planning at Qcells USA. Based in the San Francisco Bay Area. Writing at Digestible UX with Young.

Architecture by training, strategy by career. A decade across Korea, the U.S., and beyond, with stretches in Haiti and West Africa.

Venture investing and management consulting; now drawn to consumer products, AI, and beautiful things.

Photography as a way of seeing, with selections shown at contemporary art fairs. Also cooking and swimming.

Building

Hermes, Wiki Engine, SecondBrain. Private for now.

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GitHub, 2026. One square per day.

Notes
Digestible UX, monthly notes on AI and UX, co-authored with Young.
Photos

A room for photography. Gallery landing soon.