yeochul-jeon deadman
EVIDENCE BASE
50
Repositories
331
Commits
1234
Files analyzed
44
Technologies
147
Evidence
11
Active months
Based on 50 repository passports · 17/50 current
ENGINEERING PROFILE
Frontend41%
Backend70%
Testing58%
DevOps64%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
Markdown Core
LANGUAGE · 17/50 repos · 416 files · 95150 LOC
Depth 70 · HIGH
TypeScript Core
LANGUAGE · 5/50 repos · 176 files · 20219 LOC
Depth 70 · HIGH
Java Core
LANGUAGE · 6/50 repos · 164 files · 15978 LOC
Depth 70 · HIGH
Spring Framework Core
FRAMEWORK · 6/50 repos · 81 files · 7769 LOC
Depth 96 · HIGH
Vitest Recurring
TESTING · 3/50 repos · 53 files · 7446 LOC
JSON Core
LANGUAGE · 12/50 repos · 36 files · 6196 LOC
Depth 70 · HIGH
JUnit Core
TESTING · 5/50 repos · 34 files · 4909 LOC
Depth 20 · HIGH
Spring Boot Core
FRAMEWORK · 5/50 repos · 32 files · 2802 LOC
Depth 96 · HIGH
PostgreSQL Recurring
DATABASE · 3/50 repos · 30 files · 4432 LOC
Depth 81 · HIGH
Shell Core
LANGUAGE · 6/50 repos · 27 files · 1852 LOC
Depth 70 · HIGH
Python Recurring
LANGUAGE · 3/50 repos · 25 files · 4367 LOC
Depth 70 · HIGH
XML Recurring
LANGUAGE · 3/50 repos · 24 files · 7500 LOC
Depth 70 · HIGH
YAML Core
LANGUAGE · 7/50 repos · 23 files · 7780 LOC
Depth 70 · HIGH
Redis Recurring
CACHE · 2/50 repos · 20 files · 3279 LOC
Depth 93 · HIGH
Lombok Recurring
LIBRARY · 3/50 repos · 18 files · 1517 LOC
Depth 96 · HIGH
Jackson Recurring
LIBRARY · 2/50 repos · 13 files · 1547 LOC
Depth 74 · HIGH
Elasticsearch Emerging
DATABASE · 1/50 repos · 13 files · 2524 LOC
Depth 81 · HIGH
MongoDB Emerging
DATABASE · 1/50 repos · 13 files · 2495 LOC
Depth 81 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/50 repos · 12 files · 2454 LOC
Depth 81 · HIGH
Gradle Core
LANGUAGE · 8/50 repos · 11 files · 195 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 4/50 repos · 8 files · 1175 LOC
Depth 70 · HIGH
GraphQL Emerging
LIBRARY · 1/50 repos · 8 files · 433 LOC
Depth 74 · HIGH
RabbitMQ Emerging
MESSAGE_BROKER · 1/50 repos · 8 files · 1691 LOC
Depth 81 · HIGH
Zod Recurring
LIBRARY · 3/50 repos · 7 files · 1243 LOC
Depth 66 · HIGH
SQL Recurring
LANGUAGE · 2/50 repos · 6 files · 310 LOC
Depth 70 · HIGH
Vue Emerging
FRAMEWORK · 1/50 repos · 5 files · 918 LOC
Depth 74 · HIGH
npm Core
BUILD_TOOL · 5/50 repos · 5 files · 50 LOC
Depth 80 · HIGH
Dockerfile Core
LANGUAGE · 4/50 repos · 5 files · 93 LOC
Depth 70 · HIGH
Kotlin Recurring
LANGUAGE · 2/50 repos · 4 files · 98 LOC
Depth 70 · HIGH
Flask Emerging
FRAMEWORK · 1/50 repos · 3 files · 230 LOC
Depth 66 · HIGH
Maven Recurring
BUILD_TOOL · 2/50 repos · 2 files · 20 LOC
Depth 80 · HIGH
pnpm Recurring
BUILD_TOOL · 2/50 repos · 2 files · 20 LOC
Depth 80 · HIGH
debug Emerging
LIBRARY · 1/50 repos · 2 files · 48 LOC
Depth 61 · HIGH
React Recurring
FRAMEWORK · 2/50 repos · 2 files · 462 LOC
Depth 58 · HIGH
Spring Data Emerging
LIBRARY · 1/50 repos · 2 files · 207 LOC
Depth 62 · HIGH
Mockito Emerging
TESTING · 1/50 repos · 2 files · 302 LOC
Depth 41 · HIGH
Micrometer Emerging
OBSERVABILITY · 1/50 repos · 2 files · 144 LOC
Depth 81 · HIGH
JJWT Emerging
SECURITY · 1/50 repos · 2 files · 198 LOC
Depth 62 · HIGH
pip Emerging
BUILD_TOOL · 1/50 repos · 1 files · 10 LOC
Depth 80 · HIGH
Hibernate Emerging
LIBRARY · 1/50 repos · 1 files · 94 LOC
Depth 58 · HIGH
pytest Emerging
TESTING · 1/50 repos · 1 files · 441 LOC
Depth 37 · HIGH
Prettier Emerging
QUALITY · 1/50 repos · 1 files · 68 LOC
Depth 65 · HIGH
ESLint Emerging
QUALITY · 1/50 repos · 1 files · 48 LOC
Depth 64 · HIGH
esbuild Emerging
BUILD_TOOL · 1/50 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingabsent
formattingabsent
continuous_integrationabsent
Not observed ≠ does not know
PROJECT PORTFOLIO
claude-code-guides Prettier
spring-boot-claude-skill Markdown
namestack_outbox_sample Lombok
msa_prj JSON
graphify-kb-scaffold JSON
user-client Markdown
api-ai-agent Lombok
ACTIVITY & OWNERSHIP
Active months 11
Commits 331
Owner authored 100%
PRIMARY PROFILE — HR VIEW
BackendMarkdown · TypeScript · JavaHigh ownership
In 30 sec: direction — backend, core — Markdown · TypeScript · Java, 50 repos 2015 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
MarkdownTypeScriptJavaSpring FrameworkVitestHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 17
Forks 2
Watchers 3
EVERYTHING ABOVE IS TRACEABLE
50 repositories · 331 commits · 1234 files · 147 evidence
Absence of a technology in the passport does not imply lack of experience