About Me

Byeongsoo Kim

Full-Stack Product Engineer

Hamburg, Germany

Background

I've spent 13+ years building software in various roles — engineer, product manager, and solo founder. The common thread: I'm happiest when I own problems end-to-end and ship solutions that measurably help users.

Currently, I work as a Full-Stack Product Engineer, shipping production tools autonomously across teams. My PM background means I understand users deeply before writing code.

I hold a Master's degree in Computer Engineering from KAIST (Korea Advanced Institute of Science and Technology).

What I Build

I create focused tools designed around the principles of deliberate practice — valid environments, many repetitions, timely feedback, and intentional growth.

View my apps

Technical Skills

Frontend

React, TypeScript, Next.js, JavaScript

Backend

Node.js, REST APIs, PostgreSQL

AI & Tools

OpenAI API, Claude, Prompt Engineering

Product

Discovery, User Research, Roadmapping

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