Available for collaboration

I AM
KAI

Kai
FULL-STACK DEV

Founder & AI Product Builder. I design, build, and ship AI-powered products — from agent platforms and API gateways to content tools and marketplaces.

Building 8Agents, 8Router, RakuSaku, Balesin.id & NgeGen. Based in Japan.

5

Live products

15+

AI agents

JST

Timezone

Remote

Available

02 — Biography

ABOUT ME

Full product ownership: UI → backend → database → deploy → scale.

Founder of 8Agents (AI-agent SaaS), 8Router (AI gateway), RakuSaku (game top-up marketplace), Balesin.id (AI reply generator), and NgeGen (AI content platform).

Based in Japan (JST) · Open to remote USD opportunities

03 — Expertise

TECH STACK

01AI Agents
02Next.js
03TypeScript
04Python
05FastAPI
06Docker
07PostgreSQL
08Tailwind CSS
09Vercel
10Telegram Bot API
04 — Portfolio

FEATURED PROJECTS

05 — Experience

EXPERIENCE

Founder & Developer

8Agents · 2026 - Present

AI Agent SaaS platform for real work via Telegram

Creator & Developer

8Router · 2026 - Present

AI gateway with multi-provider routing & caching

Founder & Developer

RakuSaku · 2026 - Present

Digital marketplace with automated fulfillment

Creator & Developer

Balesin.id · 2026 - Present

AI message reply & translation generator

06 — Networking

READY TO COLLABORATE?

Open to remote AI product, platform engineering, and founder opportunities. Best fit: teams building AI products, developer tools, or automation platforms.