Euijun's Personal Blog | Euijun's Personal Blog

Euijun's Personal Blog

Software engineer sharing thoughts on technology, programming, and life.

Series

Series Project Hail Machine A new experiment is warming up on the launch pad. Coming soon

Series Agentic AI Dev Note Field notes on developing, operating, and evaluating AI agents in distributed systems. 3 posts → Series Dev Sentinel Turning everyday development failures into reusable experience for AI coding agents. 2 posts →

Recent Posts

「Agentic AI Dev Note」 Observing Agent Quality with Evaluation

Jun 15, 2026

「Agentic AI Dev Note」 Managing Agent Memory in a Distributed Systems

May 18, 2026

「Agentic AI Dev Note」 Developing and Operating Agents in a Distributed Systems

May 13, 2026

Dev Sentinel Story 2: Architecting Dev Sentinel - Evolving AI Agent Failures into Reusable Experience

Mar 3, 2026

Dev Sentinel Story 1: We fail every day, but that failure becomes the success of our next attempt

Feb 18, 2026

I Built an AI System Design Interviewer That Runs in My Mac Terminal

Feb 9, 2026

Crushing Communication Debt: An AI Survival Guide for Global Devs

Jan 27, 2026

Agentic Software Engineering (ASE): The Software Development Landscape is Shifting Again

Nov 17, 2025

Hacking System Design Interviews with an AI Tutor

Oct 29, 2025

Unlocking Automation with Strands Agents and Bedrock

Oct 23, 2025

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