jln13x Julian
👨🍳
EVIDENCE BASE
34
Repositories
2505
Commits
2174
Files analyzed
35
Technologies
258
Evidence
49
Active months
Based on 34 repository passports · 25/34 current
ENGINEERING PROFILE
Frontend96%
Backend28%
Testing68%
DevOps92%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 22/34 repos · 916 files · 54560 LOC
Depth 70 · HIGH
React Core
FRAMEWORK · 18/34 repos · 463 files · 35130 LOC
Depth 74 · HIGH
JavaScript Core
LANGUAGE · 20/34 repos · 360 files · 20626 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 24/34 repos · 347 files · 290876 LOC
Depth 70 · HIGH
Next.js Core
FRAMEWORK · 14/34 repos · 154 files · 10149 LOC
Depth 74 · HIGH
Markdown Core
LANGUAGE · 19/34 repos · 107 files · 5695 LOC
Depth 70 · HIGH
MongoDB Core
DATABASE · 4/34 repos · 56 files · 29390 LOC
Depth 65 · HIGH
ESLint Core
QUALITY · 15/34 repos · 43 files · 108941 LOC
Depth 81 · HIGH
Prettier Core
QUALITY · 14/34 repos · 40 files · 160390 LOC
Depth 84 · HIGH
Vitest Recurring
TESTING · 2/34 repos · 39 files · 6711 LOC
Depth 62 · HIGH
NestJS Emerging
FRAMEWORK · 1/34 repos · 38 files · 943 LOC
Depth 74 · HIGH
Zod Core
LIBRARY · 7/34 repos · 30 files · 2960 LOC
Depth 74 · HIGH
YAML Core
LANGUAGE · 9/34 repos · 25 files · 19768 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 23/34 repos · 23 files · 230 LOC
Depth 80 · HIGH
React Router Recurring
LIBRARY · 2/34 repos · 13 files · 1576 LOC
Depth 74 · HIGH
SQL Recurring
LANGUAGE · 2/34 repos · 12 files · 685 LOC
Depth 70 · HIGH
Redis Recurring
CACHE · 3/34 repos · 11 files · 12458 LOC
Depth 69 · HIGH
Hibernate Recurring
LIBRARY · 2/34 repos · 8 files · 335 LOC
Depth 62 · HIGH
Prisma Recurring
DATABASE · 2/34 repos · 5 files · 368 LOC
Depth 43 · HIGH
PostgreSQL Core
DATABASE · 4/34 repos · 4 files · 32109 LOC
Depth 65 · HIGH
pnpm Core
BUILD_TOOL · 4/34 repos · 4 files · 40 LOC
Depth 80 · HIGH
debug Emerging
LIBRARY · 1/34 repos · 4 files · 436 LOC
Depth 70 · HIGH
Express Recurring
FRAMEWORK · 2/34 repos · 4 files · 113 LOC
Depth 62 · HIGH
Tailwind CSS Core
LIBRARY · 9/34 repos · 4 files · 148 LOC
Depth 54 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/34 repos · 4 files · 6113 LOC
Depth 92 · HIGH
Yarn Recurring
BUILD_TOOL · 3/34 repos · 3 files · 30 LOC
Depth 80 · HIGH
TOML Emerging
LANGUAGE · 1/34 repos · 3 files · 8 LOC
Depth 70 · HIGH
GraphQL Recurring
LIBRARY · 2/34 repos · 2 files · 222 LOC
Depth 58 · HIGH
Vite Recurring
BUILD_TOOL · 2/34 repos · 2 files · 10 LOC
Depth 36 · HIGH
Svelte Emerging
FRAMEWORK · 1/34 repos · 1 files · 57 LOC
Depth 58 · HIGH
Morgan Emerging
OBSERVABILITY · 1/34 repos · 1 files · 34 LOC
Depth 51 · HIGH
Axios Emerging
LIBRARY · 1/34 repos · 1 files · 8 LOC
Depth 41 · HIGH
Dockerfile Emerging
LANGUAGE · 1/34 repos · 1 files · 40 LOC
Depth 70 · HIGH
XML Emerging
LANGUAGE · 1/34 repos · 1 files · 9 LOC
Depth 70 · HIGH
Testing Library Emerging
TESTING · 1/34 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
ui.jln.dev Prettier
tailwindcss-highlights Prettier
form npm
next-cache-tools Next.js
studycards Prettier
forum Redis
school-rest-api MongoDB
ACTIVITY & OWNERSHIP
Active months 49
Commits 2505
Owner authored 95%
PRIMARY PROFILE — HR VIEW
FrontendTypeScript · React · JavaScriptHigh ownership
In 30 sec: direction — frontend, core — TypeScript · React · JavaScript, 34 repos 2020 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptReactJavaScriptJSONNext.jsHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 1555
Forks 63
Watchers 27
EVERYTHING ABOVE IS TRACEABLE
34 repositories · 2505 commits · 2174 files · 258 evidence
Absence of a technology in the passport does not imply lack of experience