Notes from a backend engineer who hunts down bottlenecks by measuring — not guessing.
LatestOriginal: KO
사내 RAG 챗봇 성능 개선기 ① — 긴 문서를 어떻게 잘라야 검색이 잘 될까
사내 Slack RAG 봇 '시루AI'의 청킹 전략을 3차에 걸쳐 재설계한 기록. 글자 수 기준이 만든 장애, 배치 크기 파라미터 오진단, 한글 토큰 밀도 실측치까지.
Read more→2026-07-012026-06-302026-06-292026-06-28
Since I Started Letting AI Code ④ — Chasing AI, Learning Alongside AI
Since I Started Letting AI Code ③ — When the AI Server Goes Down, I Turn Into an Idiot Too
Since I Started Letting AI Code ② — The System AI 'Works' In: Engineering and Verification Ownership
Since I Started Letting AI Code ① — Trying Every Tool Until I Built My Own
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When Map Requests Piled Up, the Connection Pool Dried Out — From lat/lng B-tree to MySQL SPATIAL Index
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2026-04-06Beyond code
What I spend time on outside code — travel, music, books, and the economy.
Explore my hobbies→