Number Nine
no9.co.jp
Actively hiring
Blogging & Newsletter Platforms
Books
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Overview
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Overview
Number Nine is a Japanese manga company running a digital distribution service that lets manga artists sell their work through 145 e-book stores without upfront fees. More than 8,400 artists use the service, and the company also produces original webtoon and manga IP and print books, hiring senior full-stack engineers and long-term interns. The company is based in Japan.
Tech stack
Technologies named in job postings at Number Nine over the last 12 months, by layer, with the share of postings for each.
Technologies in use
23
Postings analysed
1
Stack modernity
84/100AI adopter
Languages
Rust
TypeScript
JavaScript
Frameworks & libraries
Next.js
Playwright
React.js
Vitest
Databases
DuckDB
MySQL
Cloud & platforms
AWS
Amazon S3
Anthropic
Cloudflare
Figma
GitHub
Vercel
Developer tools
Claude Code
Docker
OpenAI Codex
Terraform
pnpm
AI & ML
Claude
Practices & domains
CI/CD
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Growth
Hiring Momentum
33/100
Slowing
Open positions
3
0 opened / 0 closed in 30 days
ATS activity
Every ~5 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Early Careers
67% ▲
Backend
33% ▼
Activity Timeline
New location: Tokyo
Oct 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
1
Countries
1
Busiest office
Tokyo
Tokyo
Japan
HQ
3 open roles 3 posted in 90 days 33% engineering $63k Avg Salary
hires for Early Careers, Backend
Jobs
$46k – $64k per year • In office • Full-Time • Tokyo
JavaScript
Rust
TypeScript
MySQL
DuckDB
AI/ML
Claude
Claude Code
Anthropic
OpenAI Codex
Frontend
Next.js
React.js
pnpm
DevOps
Terraform
Vercel
CI/CD
AWS
Docker
Cloudflare
GitHub
Amazon S3
Design
Figma
Management
Slack
QA
Playwright
Vitest
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