amannn Jan Amann
Partner for User Interface Engineering
EVIDENCE BASE
96
Repositories
3186
Commits
3543
Files analyzed
29
Technologies
531
Evidence
93
Active months
Based on 96 repository passports · 49/96 current
ENGINEERING PROFILE
Frontend100%
Backend6%
Testing69%
DevOps100%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 46/96 repos · 1975 files · 111370 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 41/96 repos · 377 files · 21103 LOC
Depth 81 · HIGH
JSON Core
LANGUAGE · 49/96 repos · 355 files · 250133 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 36/96 repos · 350 files · 7184 LOC
Depth 70 · HIGH
Next.js Core
FRAMEWORK · 40/96 repos · 250 files · 15063 LOC
Depth 81 · HIGH
Markdown Core
LANGUAGE · 49/96 repos · 176 files · 13571 LOC
Depth 70 · HIGH
ESLint Core
QUALITY · 26/96 repos · 109 files · 205048 LOC
Depth 88 · HIGH
YAML Core
LANGUAGE · 41/96 repos · 88 files · 99782 LOC
Depth 70 · HIGH
Prettier Core
QUALITY · 12/96 repos · 62 files · 100012 LOC
Depth 88 · HIGH
Vitest Core
TESTING · 6/96 repos · 61 files · 16293 LOC
Depth 78 · HIGH
npm Core
BUILD_TOOL · 49/96 repos · 49 files · 490 LOC
Depth 80 · HIGH
pnpm Core
BUILD_TOOL · 36/96 repos · 36 files · 360 LOC
Depth 80 · HIGH
Playwright Core
TESTING · 7/96 repos · 34 files · 2876 LOC
Depth 78 · HIGH
Vite Core
BUILD_TOOL · 4/96 repos · 13 files · 124 LOC
Depth 40 · HIGH
Tailwind CSS Core
LIBRARY · 16/96 repos · 8 files · 76 LOC
Depth 46 · HIGH
Yarn Core
BUILD_TOOL · 6/96 repos · 6 files · 60 LOC
Depth 80 · HIGH
Zod Recurring
LIBRARY · 2/96 repos · 5 files · 193 LOC
Depth 58 · HIGH
Webpack Core
BUILD_TOOL · 5/96 repos · 5 files · 518 LOC
Depth 62 · HIGH
GraphQL Emerging
LIBRARY · 1/96 repos · 4 files · 544 LOC
Depth 74 · HIGH
Rust Emerging
LANGUAGE · 1/96 repos · 3 files · 782 LOC
Depth 70 · HIGH
Lodash Emerging
LIBRARY · 1/96 repos · 2 files · 88 LOC
Depth 66 · HIGH
TOML Emerging
LANGUAGE · 1/96 repos · 2 files · 43 LOC
Depth 70 · HIGH
Serde Emerging
LIBRARY · 1/96 repos · 1 files · 567 LOC
Depth 58 · HIGH
Cargo Emerging
BUILD_TOOL · 1/96 repos · 1 files · 10 LOC
Depth 80 · HIGH
Jest Emerging
TESTING · 1/96 repos · 1 files · 6 LOC
Depth 15 · HIGH
Redis Emerging
CACHE · 1/96 repos · 1 files · 8695 LOC
Depth 61 · HIGH
XML Emerging
LANGUAGE · 1/96 repos · 1 files · 9 LOC
Depth 70 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/96 repos · 1 files · 8661 LOC
Depth 61 · HIGH
Testing Library Emerging
TESTING · 1/96 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationabsent
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
next-intl ESLint
nextjs-commerce-example Prettier
next-query-params ESLint
next-client-script ESLint
react-hooks ESLint
amann.work npm
ACTIVITY & OWNERSHIP
Active months 93
Commits 3186
Owner authored 6%
PRIMARY PROFILE — HR VIEW
FrontendTypeScript · React · JSONTeam
In 30 sec: direction — frontend, core — TypeScript · React · JSON, 96 repos 2016 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptReactJSONJavaScriptNext.jsTeam
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 6099
Forks 628
Watchers 46
EVERYTHING ABOVE IS TRACEABLE
96 repositories · 3186 commits · 3543 files · 531 evidence
Absence of a technology in the passport does not imply lack of experience