Leibnizhu 雷念竹
Ex-EMC/RF engineer...Big-Data engineer...
EVIDENCE BASE
40
Repositories
3283
Commits
25346
Files analyzed
57
Technologies
325
Evidence
99
Active months
Based on 40 repository passports · 27/40 current
ENGINEERING PROFILE
Frontend55%
Backend96%
Testing62%
DevOps77%
CORE TECHNOLOGIES
HR: name + projects · Lead: + files/LOC · persistence Core≥4
Scala Core
LANGUAGE · 9/40 repos · 5115 files · 1104835 LOC
Depth 70 · HIGH
Java Core
LANGUAGE · 16/40 repos · 1670 files · 161704 LOC
Depth 70 · HIGH
TypeScript Core
LANGUAGE · 14/40 repos · 835 files · 98237 LOC
Depth 62 · HIGH
JSON Core
LANGUAGE · 11/40 repos · 724 files · 142088 LOC
Depth 70 · HIGH
Markdown Core
LANGUAGE · 22/40 repos · 714 files · 74435 LOC
Depth 70 · HIGH
Python Recurring
LANGUAGE · 3/40 repos · 697 files · 244562 LOC
Depth 70 · HIGH
SQL Recurring
LANGUAGE · 3/40 repos · 457 files · 42061 LOC
Depth 70 · HIGH
JUnit Core
TESTING · 13/40 repos · 244 files · 30516 LOC
Depth 62 · HIGH
XML Core
LANGUAGE · 20/40 repos · 174 files · 27162 LOC
Depth 70 · HIGH
Mockito Recurring
TESTING · 3/40 repos · 167 files · 58502 LOC
Depth 53 · HIGH
Go Emerging
LANGUAGE · 1/40 repos · 164 files · 8073 LOC
Depth 70 · HIGH
pandas Emerging
LIBRARY · 1/40 repos · 146 files · 97100 LOC
Depth 78 · HIGH
NumPy Emerging
LIBRARY · 1/40 repos · 138 files · 116374 LOC
Depth 78 · HIGH
YAML Core
LANGUAGE · 8/40 repos · 132 files · 7658 LOC
Depth 70 · HIGH
JavaScript Core
LANGUAGE · 7/40 repos · 108 files · 41601 LOC
Depth 70 · HIGH
Apache Kafka Emerging
MESSAGE_BROKER · 1/40 repos · 89 files · 24772 LOC
Depth 100 · HIGH
Shell Core
LANGUAGE · 10/40 repos · 73 files · 4319 LOC
Depth 70 · HIGH
Jackson Core
LIBRARY · 4/40 repos · 71 files · 25903 LOC
Depth 74 · HIGH
Vue Recurring
LANGUAGE · 2/40 repos · 50 files · 7833 LOC
Depth 70 · HIGH
Spring Framework Recurring
FRAMEWORK · 2/40 repos · 38 files · 1732 LOC
Depth 74 · HIGH
gRPC Emerging
LIBRARY · 1/40 repos · 21 files · 7844 LOC
Depth 74 · HIGH
Maven Core
BUILD_TOOL · 16/40 repos · 16 files · 160 LOC
Depth 80 · HIGH
Tailwind CSS Emerging
LIBRARY · 1/40 repos · 16 files · 7247 LOC
Depth 74 · HIGH
Dockerfile Core
LANGUAGE · 5/40 repos · 12 files · 394 LOC
Depth 70 · HIGH
debug Recurring
LIBRARY · 3/40 repos · 11 files · 8378 LOC
Depth 62 · HIGH
Requests Recurring
LIBRARY · 2/40 repos · 10 files · 1195 LOC
Depth 70 · HIGH
Gradle Core
LANGUAGE · 8/40 repos · 10 files · 275 LOC
Depth 70 · HIGH
ESLint Recurring
QUALITY · 3/40 repos · 7 files · 21493 LOC
Depth 61 · HIGH
Redis Recurring
CACHE · 2/40 repos · 6 files · 6304 LOC
Depth 81 · HIGH
Spring Boot Emerging
FRAMEWORK · 1/40 repos · 5 files · 299 LOC
Depth 74 · HIGH
lxml Recurring
LIBRARY · 2/40 repos · 4 files · 541 LOC
Depth 58 · HIGH
MongoDB Core
DATABASE · 4/40 repos · 4 files · 384 LOC
Depth 61 · HIGH
PostgreSQL Recurring
DATABASE · 2/40 repos · 3 files · 632 LOC
Depth 49 · HIGH
pip Recurring
BUILD_TOOL · 3/40 repos · 3 files · 30 LOC
Depth 80 · HIGH
Hibernate Emerging
LIBRARY · 1/40 repos · 3 files · 297 LOC
Depth 49 · HIGH
SQLAlchemy Recurring
LIBRARY · 2/40 repos · 3 files · 402 LOC
Depth 62 · HIGH
Ruby Emerging
LANGUAGE · 1/40 repos · 3 files · 262 LOC
Depth 70 · HIGH
Express Emerging
FRAMEWORK · 1/40 repos · 3 files · 150 LOC
Depth 66 · HIGH
npm Recurring
BUILD_TOOL · 3/40 repos · 3 files · 30 LOC
Depth 80 · HIGH
TOML Recurring
LANGUAGE · 2/40 repos · 3 files · 74 LOC
Depth 70 · HIGH
Vite Emerging
BUILD_TOOL · 1/40 repos · 2 files · 66 LOC
Depth 62 · HIGH
C Recurring
LANGUAGE · 2/40 repos · 2 files · 52 LOC
Depth 70 · HIGH
Next.js Recurring
FRAMEWORK · 2/40 repos · 2 files · 2166 LOC
Depth 46 · HIGH
Yarn Recurring
BUILD_TOOL · 2/40 repos · 2 files · 20 LOC
Depth 80 · HIGH
Poetry Emerging
BUILD_TOOL · 1/40 repos · 1 files · 10 LOC
Depth 80 · HIGH
Axios Emerging
LIBRARY · 1/40 repos · 1 files · 37 LOC
Depth 53 · HIGH
PowerShell Emerging
LANGUAGE · 1/40 repos · 1 files · 112 LOC
Depth 70 · HIGH
Bundler Emerging
BUILD_TOOL · 1/40 repos · 1 files · 10 LOC
Depth 80 · HIGH
Go Modules Emerging
BUILD_TOOL · 1/40 repos · 1 files · 10 LOC
Depth 80 · HIGH
Prettier Emerging
QUALITY · 1/40 repos · 1 files · 11964 LOC
Depth 61 · HIGH
RabbitMQ Emerging
MESSAGE_BROKER · 1/40 repos · 1 files · 764 LOC
Depth 65 · HIGH
Webpack Emerging
BUILD_TOOL · 1/40 repos · 1 files · 9 LOC
Depth 41 · HIGH
Logback Core
OBSERVABILITY · 8/40 repos · 0 files · 0 LOC
Apache Commons Core
LIBRARY · 4/40 repos · 0 files · 0 LOC
HTTPX Emerging
LIBRARY · 1/40 repos · 0 files · 0 LOC
SLF4J Core
LIBRARY · 9/40 repos · 0 files · 0 LOC
Protocol Buffers Emerging
LIBRARY · 1/40 repos · 0 files · 0 LOC
ENGINEERING HABITS
containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved
Not observed ≠ does not know
PROJECT PORTFOLIO
AlipayWechatPlatform TypeScript
LeetcodeScala Java
AdPluto Maven
Nusadua Maven
DNFIndexQuery Redis
vertXearch Maven
ACTIVITY & OWNERSHIP
Active months 99
Commits 3283
Owner authored 88%
PRIMARY PROFILE — HR VIEW
BackendScala · Java · TypeScriptHigh ownership
In 30 sec: direction — backend, core — Scala · Java · TypeScript, 40 repos 2015 — 2026. No LOC or files — stability only.
DEVELOPER SIGNATURE
ScalaJavaTypeScriptJSONMarkdownHigh ownership
TECHNOLOGY EVOLUTION
2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next
COMMUNITY / IMPACT not a skill rating
Stars 304
Forks 103
Watchers 47
EVERYTHING ABOVE IS TRACEABLE
40 repositories · 3283 commits · 25346 files · 325 evidence
Absence of a technology in the passport does not imply lack of experience