yamadashy Kazuki Yamada
Developer.
EVIDENCE BASE
48
Repositories
10009
Commits
2677
Files analyzed
42
Technologies
196
Evidence
86
Active months
Based on 48 repository passports · 24/48 current
ENGINEERING PROFILE
Frontend75%
Backend37%
Testing58%
DevOps75%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 16/48 repos · 1065 files · 137816 LOC
Depth 70 · HIGH
Markdown Core
LANGUAGE · 24/48 repos · 780 files · 66521 LOC
Depth 70 · HIGH
Vitest Core
TESTING · 7/48 repos · 278 files · 56917 LOC
Depth 60 · HIGH
JSON Core
LANGUAGE · 19/48 repos · 215 files · 207288 LOC
Depth 70 · HIGH
YAML Core
LANGUAGE · 16/48 repos · 89 files · 5438 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 12/48 repos · 44 files · 4497 LOC
Depth 70 · HIGH
Rust Emerging
LANGUAGE · 1/48 repos · 43 files · 5775 LOC
Depth 70 · HIGH
React Recurring
FRAMEWORK · 3/48 repos · 30 files · 3750 LOC
Depth 74 · HIGH
PHP Recurring
LANGUAGE · 2/48 repos · 27 files · 1927 LOC
Depth 70 · HIGH
ESLint Core
QUALITY · 10/48 repos · 24 files · 61868 LOC
Depth 84 · HIGH
Vue Emerging
LANGUAGE · 1/48 repos · 19 files · 3199 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 16/48 repos · 16 files · 160 LOC
Depth 80 · HIGH
Zod Recurring
LIBRARY · 2/48 repos · 11 files · 1646 LOC
Depth 74 · HIGH
Redis Recurring
CACHE · 2/48 repos · 7 files · 5670 LOC
Depth 81 · HIGH
MongoDB Core
DATABASE · 7/48 repos · 7 files · 1542 LOC
Depth 61 · HIGH
Serde Emerging
LIBRARY · 1/48 repos · 6 files · 307 LOC
Depth 74 · HIGH
Dockerfile Recurring
LANGUAGE · 3/48 repos · 6 files · 324 LOC
Depth 70 · HIGH
debug Recurring
LIBRARY · 3/48 repos · 4 files · 388 LOC
Depth 66 · HIGH
TOML Core
LANGUAGE · 4/48 repos · 4 files · 93 LOC
Depth 70 · HIGH
Laravel Emerging
FRAMEWORK · 1/48 repos · 3 files · 255 LOC
Depth 70 · HIGH
Shell Recurring
LANGUAGE · 2/48 repos · 3 files · 203 LOC
Depth 70 · HIGH
XML Recurring
LANGUAGE · 3/48 repos · 3 files · 143 LOC
Depth 70 · HIGH
Next.js Recurring
FRAMEWORK · 2/48 repos · 2 files · 957 LOC
Depth 58 · HIGH
Axios Recurring
LIBRARY · 2/48 repos · 2 files · 169 LOC
Depth 58 · HIGH
Composer Recurring
BUILD_TOOL · 2/48 repos · 2 files · 20 LOC
Depth 80 · HIGH
Express Emerging
FRAMEWORK · 1/48 repos · 2 files · 900 LOC
Depth 66 · HIGH
Prettier Emerging
QUALITY · 1/48 repos · 2 files · 1225 LOC
Depth 65 · HIGH
Axum Emerging
FRAMEWORK · 1/48 repos · 2 files · 410 LOC
Depth 62 · HIGH
Symfony Emerging
FRAMEWORK · 1/48 repos · 2 files · 317 LOC
Depth 62 · HIGH
Webpack Recurring
BUILD_TOOL · 2/48 repos · 2 files · 45 LOC
Depth 43 · HIGH
Cargo Emerging
BUILD_TOOL · 1/48 repos · 1 files · 10 LOC
Depth 80 · HIGH
Tokio Emerging
LIBRARY · 1/48 repos · 1 files · 286 LOC
Depth 58 · HIGH
Svelte Emerging
FRAMEWORK · 1/48 repos · 1 files · 517 LOC
Depth 58 · HIGH
Yarn Emerging
BUILD_TOOL · 1/48 repos · 1 files · 10 LOC
Depth 80 · HIGH
Lodash Emerging
LIBRARY · 1/48 repos · 1 files · 383 LOC
Depth 37 · HIGH
Angular Emerging
FRAMEWORK · 1/48 repos · 1 files · 517 LOC
Depth 58 · HIGH
Flutter Emerging
FRAMEWORK · 1/48 repos · 1 files · 212 LOC
Depth 37 · HIGH
Vite Recurring
BUILD_TOOL · 2/48 repos · 1 files · 30 LOC
Dart Emerging
LANGUAGE · 1/48 repos · 1 files · 212 LOC
Depth 37 · HIGH
Clap Emerging
LIBRARY · 1/48 repos · 0 files · 0 LOC
Tailwind CSS Emerging
LIBRARY · 1/48 repos · 0 files · 0 LOC
esbuild Emerging
BUILD_TOOL · 1/48 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
repomix ESLint
slack-channels-grouping Redis
copilot-toys Markdown
phpstan-friendly-formatter TypeScript
pdfvision npm
ACTIVITY & OWNERSHIP
Active months 86
Commits 10009
Owner authored 2%
PRIMARY PROFILE — HR VIEW
FrontendTypeScript · Markdown · VitestTeam
In 30 sec: direction — frontend, core — TypeScript · Markdown · Vitest, 48 repos 2017 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptMarkdownVitestJSONYAMLTeam
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 29508
Forks 1828
Watchers 94
EVERYTHING ABOVE IS TRACEABLE
48 repositories · 10009 commits · 2677 files · 196 evidence
Absence of a technology in the passport does not imply lack of experience