kazupon kazuya kawaguchi
software engineer, @vuejs core team member, vite+ team member, creator of gunshi, @intlify & i18n enthusiast, vue fes japan & @vuejs-jp organizer, and wasm love
EVIDENCE BASE
168
Repositories
9806
Commits
6928
Files analyzed
46
Technologies
1043
Evidence
131
Active months
Based on 168 repository passports · 109/168 current
ENGINEERING PROFILE
Frontend94%
Backend22%
Testing65%
DevOps96%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 76/168 repos · 1779 files · 288377 LOC
Depth 70 · HIGH
Markdown Core
LANGUAGE · 99/168 repos · 1095 files · 84671 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 105/168 repos · 760 files · 251633 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 70/168 repos · 579 files · 119979 LOC
Depth 70 · HIGH
YAML Core
LANGUAGE · 62/168 repos · 369 files · 171078 LOC
Depth 70 · HIGH
Vue Core
LANGUAGE · 51/168 repos · 249 files · 10454 LOC
Depth 70 · HIGH
ESLint Core
QUALITY · 66/168 repos · 191 files · 461786 LOC
Depth 84 · HIGH
Svelte Core
LANGUAGE · 6/168 repos · 150 files · 3669 LOC
Depth 70 · HIGH
Vitest Core
TESTING · 14/168 repos · 143 files · 26626 LOC
Depth 85 · HIGH
Rust Core
LANGUAGE · 5/168 repos · 105 files · 32423 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 104/168 repos · 104 files · 1040 LOC
Depth 80 · HIGH
Vite Core
BUILD_TOOL · 28/168 repos · 92 files · 13524 LOC
Depth 74 · HIGH
Prettier Core
QUALITY · 43/168 repos · 83 files · 345033 LOC
Depth 73 · HIGH
debug Core
LIBRARY · 10/168 repos · 57 files · 42544 LOC
Depth 85 · HIGH
Shell Core
LANGUAGE · 19/168 repos · 48 files · 914 LOC
Depth 70 · HIGH
pnpm Core
BUILD_TOOL · 45/168 repos · 45 files · 450 LOC
Depth 80 · HIGH
Yarn Core
BUILD_TOOL · 29/168 repos · 29 files · 290 LOC
Depth 80 · HIGH
Ruby Recurring
LANGUAGE · 2/168 repos · 29 files · 841 LOC
Depth 70 · HIGH
Playwright Core
TESTING · 4/168 repos · 25 files · 5783 LOC
Depth 66 · HIGH
TOML Core
LANGUAGE · 6/168 repos · 25 files · 292 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 4/168 repos · 23 files · 17168 LOC
Depth 66 · HIGH
Redis Core
CACHE · 14/168 repos · 14 files · 125909 LOC
Depth 61 · HIGH
Webpack Core
BUILD_TOOL · 7/168 repos · 8 files · 1509 LOC
Depth 47 · HIGH
Next.js Core
FRAMEWORK · 4/168 repos · 7 files · 3737 LOC
Depth 37 · HIGH
Cargo Core
BUILD_TOOL · 5/168 repos · 5 files · 50 LOC
Depth 80 · HIGH
Axios Recurring
LIBRARY · 3/168 repos · 5 files · 162 LOC
Depth 70 · HIGH
Hibernate Emerging
LIBRARY · 1/168 repos · 3 files · 7075 LOC
Depth 66 · HIGH
MongoDB Recurring
DATABASE · 2/168 repos · 3 files · 17608 LOC
Depth 69 · HIGH
Serde Emerging
LIBRARY · 1/168 repos · 2 files · 1165 LOC
Depth 62 · HIGH
Express Recurring
FRAMEWORK · 3/168 repos · 2 files · 117 LOC
Depth 34 · HIGH
Dockerfile Emerging
LANGUAGE · 1/168 repos · 2 files · 8 LOC
Depth 70 · HIGH
Apache Kafka Recurring
MESSAGE_BROKER · 2/168 repos · 2 files · 18217 LOC
Depth 61 · HIGH
C Emerging
LANGUAGE · 1/168 repos · 1 files · 205 LOC
Depth 70 · HIGH
PostgreSQL Emerging
DATABASE · 1/168 repos · 1 files · 14901 LOC
Depth 61 · HIGH
Lodash Recurring
LIBRARY · 2/168 repos · 1 files · 43 LOC
Depth 34 · HIGH
Jest Core
TESTING · 6/168 repos · 1 files · 85 LOC
Redux Emerging
LIBRARY · 1/168 repos · 1 files · 12975 LOC
Depth 58 · HIGH
RabbitMQ Emerging
MESSAGE_BROKER · 1/168 repos · 1 files · 2815 LOC
Depth 61 · HIGH
Nuxt Core
FRAMEWORK · 13/168 repos · 0 files · 0 LOC
GraphQL Emerging
LIBRARY · 1/168 repos · 0 files · 0 LOC
Tailwind CSS Emerging
LIBRARY · 1/168 repos · 0 files · 0 LOC
Mocha Recurring
TESTING · 2/168 repos · 0 files · 0 LOC
Testing Library Recurring
TESTING · 2/168 repos · 0 files · 0 LOC
Zod Emerging
LIBRARY · 1/168 repos · 0 files · 0 LOC
esbuild Emerging
BUILD_TOOL · 1/168 repos · 0 files · 0 LOC
Cypress Emerging
TESTING · 1/168 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
ACTIVITY & OWNERSHIP
Active months 131
Commits 9806
Owner authored 7%
PRIMARY PROFILE — HR VIEW
FrontendTypeScript · Markdown · JSONTeam
In 30 sec: direction — frontend, core — TypeScript · Markdown · JSON, 168 repos 2009 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptMarkdownJSONJavaScriptYAMLTeam
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 1394
Forks 126
Watchers 115
EVERYTHING ABOVE IS TRACEABLE
168 repositories · 9806 commits · 6928 files · 1043 evidence
Absence of a technology in the passport does not imply lack of experience