justn-hyeok Justn
Shipped like Geometry Dash
EVIDENCE BASE
23
Repositories
1487
Commits
1463
Files analyzed
53
Technologies
162
Evidence
10
Active months
Based on 23 repository passports · 13/23 current
ENGINEERING PROFILE
Frontend53%
Backend61%
Testing38%
DevOps69%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
TypeScript Core
LANGUAGE · 4/23 repos · 322 files · 67071 LOC
Depth 70 · HIGH
Markdown Core
LANGUAGE · 12/23 repos · 269 files · 37193 LOC
Depth 70 · HIGH
Rust Recurring
LANGUAGE · 3/23 repos · 140 files · 52769 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 10/23 repos · 107 files · 17570 LOC
Depth 70 · HIGH
Python Core
LANGUAGE · 5/23 repos · 85 files · 7361 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 5/23 repos · 72 files · 6533 LOC
Depth 70 · HIGH
YAML Core
LANGUAGE · 10/23 repos · 54 files · 8560 LOC
Depth 70 · HIGH
Swift Recurring
LANGUAGE · 3/23 repos · 45 files · 6653 LOC
Depth 70 · HIGH
Vitest Recurring
TESTING · 2/23 repos · 42 files · 5206 LOC
Depth 78 · HIGH
SQL Recurring
LANGUAGE · 3/23 repos · 36 files · 2519 LOC
Depth 70 · HIGH
Serde Recurring
LIBRARY · 3/23 repos · 31 files · 15967 LOC
Depth 78 · HIGH
PostgreSQL Recurring
DATABASE · 3/23 repos · 30 files · 6531 LOC
Depth 60 · HIGH
Shell Core
LANGUAGE · 7/23 repos · 30 files · 1735 LOC
Depth 70 · HIGH
Zod Recurring
LIBRARY · 3/23 repos · 23 files · 4061 LOC
Depth 62 · HIGH
TOML Core
LANGUAGE · 6/23 repos · 19 files · 418 LOC
Depth 70 · HIGH
Redis Recurring
CACHE · 2/23 repos · 18 files · 16282 LOC
Depth 76 · HIGH
Tokio Recurring
LIBRARY · 2/23 repos · 14 files · 7296 LOC
Depth 74 · HIGH
ESLint Recurring
QUALITY · 3/23 repos · 14 files · 18300 LOC
Depth 69 · HIGH
Next.js Recurring
FRAMEWORK · 3/23 repos · 14 files · 4693 LOC
Depth 78 · HIGH
React Recurring
FRAMEWORK · 3/23 repos · 13 files · 2546 LOC
Depth 74 · HIGH
pytest Recurring
TESTING · 2/23 repos · 11 files · 1010 LOC
Depth 53 · HIGH
Prisma Emerging
DATABASE · 1/23 repos · 9 files · 1534 LOC
Depth 78 · HIGH
Ruby Recurring
LANGUAGE · 2/23 repos · 8 files · 258 LOC
Depth 70 · HIGH
Playwright Recurring
TESTING · 3/23 repos · 5 files · 795 LOC
Depth 62 · HIGH
npm Core
BUILD_TOOL · 5/23 repos · 5 files · 50 LOC
Depth 80 · HIGH
Dockerfile Recurring
LANGUAGE · 2/23 repos · 5 files · 111 LOC
Depth 70 · HIGH
Prettier Recurring
QUALITY · 2/23 repos · 4 files · 7531 LOC
Depth 65 · HIGH
Cargo Recurring
BUILD_TOOL · 3/23 repos · 3 files · 30 LOC
Depth 80 · HIGH
Elasticsearch Emerging
DATABASE · 1/23 repos · 3 files · 1614 LOC
Depth 69 · HIGH
Go Emerging
LANGUAGE · 1/23 repos · 2 files · 1105 LOC
Depth 70 · HIGH
pip Recurring
BUILD_TOOL · 2/23 repos · 2 files · 20 LOC
Depth 80 · HIGH
Poetry Recurring
BUILD_TOOL · 2/23 repos · 2 files · 20 LOC
Depth 80 · HIGH
NestJS Emerging
FRAMEWORK · 1/23 repos · 2 files · 300 LOC
Depth 62 · HIGH
uv Recurring
BUILD_TOOL · 2/23 repos · 2 files · 20 LOC
Depth 80 · HIGH
SQLAlchemy Emerging
LIBRARY · 1/23 repos · 2 files · 132 LOC
Depth 66 · HIGH
Lodash Emerging
LIBRARY · 1/23 repos · 2 files · 198 LOC
Depth 62 · HIGH
pnpm Recurring
BUILD_TOOL · 2/23 repos · 2 files · 20 LOC
Depth 80 · HIGH
debug Recurring
LIBRARY · 2/23 repos · 2 files · 492 LOC
Depth 65 · HIGH
Maven Emerging
BUILD_TOOL · 1/23 repos · 1 files · 10 LOC
Depth 80 · HIGH
Pydantic Emerging
LIBRARY · 1/23 repos · 1 files · 16 LOC
Depth 44 · HIGH
Vite Emerging
BUILD_TOOL · 1/23 repos · 1 files · 15 LOC
Depth 44 · HIGH
Gin Emerging
FRAMEWORK · 1/23 repos · 1 files · 147 LOC
Depth 58 · HIGH
MongoDB Emerging
DATABASE · 1/23 repos · 1 files · 117 LOC
Depth 65 · HIGH
Go Modules Emerging
BUILD_TOOL · 1/23 repos · 1 files · 10 LOC
Depth 80 · HIGH
Express Emerging
FRAMEWORK · 1/23 repos · 1 files · 161 LOC
Depth 58 · HIGH
pandas Emerging
LIBRARY · 1/23 repos · 1 files · 276 LOC
Depth 58 · HIGH
Cypress Emerging
TESTING · 1/23 repos · 1 files · 23 LOC
Depth 47 · HIGH
XML Emerging
LANGUAGE · 1/23 repos · 1 files · 13 LOC
Depth 70 · HIGH
FastAPI Emerging
FRAMEWORK · 1/23 repos · 1 files · 31 LOC
Depth 50 · HIGH
lxml Emerging
LIBRARY · 1/23 repos · 0 files · 0 LOC
Reqwest Emerging
LIBRARY · 1/23 repos · 0 files · 0 LOC
JUnit Emerging
TESTING · 1/23 repos · 0 files · 0 LOC
Clap Recurring
LIBRARY · 3/23 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
watchdog Shell
for-real Markdown
ily-sexy-ghostty Shell
webp2any npm
auctionote Playwright
graveyard-fr Redis
brgr Cargo
agent-progress Next.js
ACTIVITY & OWNERSHIP
Active months 10
Commits 1487
Owner authored 100%
PRIMARY PROFILE — HR VIEW
BackendTypeScript · Markdown · RustHigh ownership
In 30 sec: direction — backend, core — TypeScript · Markdown · Rust, 23 repos 2025 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
TypeScriptMarkdownRustJSONPythonHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 7
Forks 1
Watchers 0
EVERYTHING ABOVE IS TRACEABLE
23 repositories · 1487 commits · 1463 files · 162 evidence
Absence of a technology in the passport does not imply lack of experience