Product Manager × AI-driven builder based in Chiba, Japan.

I don't write code by hand — I ship working products by directing AI (mainly Claude Code). My job is defining what to build and why; the AI handles the how.

• Representative of Silbird Inc. — a micro-company handling outsourced projects, formerly a ~30-person smartphone game studio
• Former Lead Planner / Producer @ gloops — mobile game planning and production

Started as a .NET web game engineer, then moved into planning and management around 2013. Today I combine that engineering intuition with product thinking — and AI tooling closes the gap where I stopped writing code myself.

gloops

• Daigekitou! Sengoku Battle (大激闘!戦国バトル)
• Dainekkyou! Professional Baseball Card (大熱狂!プロ野球カード)
• Daishoukan! Magic-Gate (大召喚!マジゲート)
• Minna to Biohazard: Clan Master (みんなとバイオハザード クランマスター)
• Kinnikuman: Muscle Collection (キン肉マン マッスルコレクション)

Silbird

• Tower of Dragon (タワーオブドラゴン)
• Hoshikui (星喰)
• DanMachi: Cross Istoria (ダンまち クロス・イストリア)

• BOATZ — boat reservation system (Nuxt.js / Firebase)
• ShishaDB — structured database of 1,000+ shisha flavor records and the whole of shisha bars in Japan (Supabase / React / Next.js)
• Posily — UGC review platform (Supabase / React / Vercel)
• Corporate websites - Affordable, high-quality, and fast delivery. Website creation, maintenance, and occasional IT consulting for small and medium-sized enterprises in Japan (Claude / codex / Cloudflare / Astro / others)

All built through AI-assisted development, from spec to deployment.

Bass fishing and blending shisha flavors at home.

• X: @74kaneck