Software engineer writing about backend systems, DevOps, and lessons learned building real products.
Work
Arch Calendar — The Calendar That Remembers Everything · Lead BackendLed backend from legacy to public launch — multi-account calendar sync, payments, and real-time updates processing 10M+ events at scale.
Project Crucio — AISecOps Knowledge Platform · Creator
Zero Trust security for generative AI — 6 polyglot microservices (Python + Go + Rust + TypeScript), Kafka event streaming, hash-chained audit, and full LGTM observability on hybrid GCP + NAS infrastructure.
Recent Posts
↻
Claude, Copilot, Codex가 PR에서 보이는 13가지 패턴
↻ Claude Code Agent Teams
↻ FastAPI에서 startup dependency를 non-blocking으로 만들기
↻ Anthropic Prompt Cache TTL과 비용 메커니즘
↻ Codex Skill Mirror 패턴
↻ 수동 merge gate로서의 두 단계 호출 패턴
↻ `gh pr view`의 head-branch 모호성(false negative)
↻ watcher hook 아래서 `git rev-parse HEAD`와 `git log -1`이 어긋날 때
↻ Markdownlint Pre-Commit: MD041 + MD001 heading 함정
↻ Serena MCP — Claude Code 다중 프로필 설정 (cpers/cwork)