About Me
MJ Kang
Hi, I’m Myeongjin (MJ) Kang, a product manager, builder, and Berkeley Haas MBA student interested in how AI changes the way we build, work, and make decisions.
Before Haas, I worked as a product manager across fintech, live streaming, and consumer startups, including Toss Bank, Hyperconnect, and DoEat. My work has focused on launching and growing user-centered products, from social banking and financial collaboration tools to growth systems and AI-supported moderation workflows. Across these experiences, I became especially interested in the messy middle between product judgment, technical systems, and human behavior.
Today, I’m exploring what product management looks like in the AI era. I write about AI-native workflows, agentic systems, product thinking, and the changing relationship between PMs, designers, engineers, and users. I’m particularly interested in how individuals and small teams can use AI to build with more leverage, while still keeping human taste, judgment, and intention at the center.
I also build side projects around these questions. Some are practical tools, like CrossFit WOD analyzers, personal finance experiments, and AI-enhanced workflows. Others are more exploratory, including ideas around human-in-the-loop agent systems, personal knowledge, journaling, and taste development.
You can see more of my projects, writing, and product work on mj-kang.com.
Outside of work, I’m a CrossFit Level 1 Trainer, a tech geek, and a lifelong learner interested in philosophy, systems thinking, photography, and writing.
About This Blog
This blog is where I think in public.
I use it to explore the questions I keep coming back to: how products should be built, how AI changes the role of builders, how people make better decisions, and how technology can make life more intentional rather than just more efficient.
Some posts are about product management. Some are about AI, startups, and side projects. Some are more personal reflections on learning, taste, ambition, and the kind of work I want to do. I don’t see this blog as a place for polished answers only. I see it as a place to clarify my thinking, document what I’m learning, and share ideas that may be useful to other builders.
My main portfolio lives at mj-kang.com, where I collect my projects, professional work, and experiments. This blog is the slower, more reflective layer behind that work.
If you’re a product manager, founder, engineer, designer, MBA student, or just someone curious about AI and building, I hope you find something here that helps you think a little more clearly.
