https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Fri, 12 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers.en https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers.en From why the PostHog How to demo essay struck a nerve, to the structure of an S-tier demo that opens with a 15-second hook, scenario scripting, demo-mode flags in code, and ten common failures with recovery lines. A practical demo guide for an era where showing your work matters as much as building it. Fri, 12 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) democommunicationcareerpresentationdeveloper-productivityculture https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers.ja https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers.ja PostHogのHow to demoが話題になった理由から、15秒のフックで始まるSランクデモの構造、シナリオスクリプトの書き方、デモモードフラグの実装、よくある失敗10選とリカバリーフレーズまで。作る力と同じくらい見せる力がキャリアを左右する時代の実践デモガイドです。 Fri, 12 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) democommunicationcareerpresentationdeveloper-productivityculture https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers https://www.youngju.dev/blog/culture/2026-06-12-s-tier-demo-skills-for-developers PostHog의 How to demo 글이 화제가 된 이유부터, 훅 15초로 시작하는 S급 데모의 구조, 시나리오 스크립트 작성법, 데모 모드 플래그 구현, 흔한 실패 10가지와 복구 멘트까지. 만드는 실력만큼 보여주는 실력이 커리어를 가르는 시대의 실전 데모 가이드입니다. Fri, 12 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) democommunicationcareerpresentationdeveloper-productivityculture