Hi there 👋

• 🔭 I’m currently working on DiDi
• 🌱 I’m currently using Objective-C,Golang,Java,Scala,Python,Solidity
• 📫 How to reach me: https://weibo.com/ranwj/

Skills	Desc	Progress
CS Basic	CPU,MEM,PROCESS,NET,FS,DS	👉👉👉👉👉👉👉
Objective-C	7 years, Didi app	👉👉👉👉👉👉👉👉
Java	RTA/RTB, 45wQPS, 60ms	👉👉👉👉👉👉👉
Golang	Ad system,Channel mngm	👉👉👉👉
Scala	AI feature-SDK	👉
Python	Spark Tasks, script	👉
Solidity	Smart Contracts,ETH,Defi	👉👉
Shell	script	👉👉👉👉👉
MySQL	basic,index,transaction,lock	👉👉👉👉👉👉👉👉
Redis	basic,optim,impl	👉👉👉👉👉👉👉👉
Nginx	config,impl	👉👉👉
ES	basic,impl	👉
Kafka/RabbitMQ	basic,impl	👉👉👉👉👉👉👉👉
ZK	Desc	👉👉👉
Distribute Sys	RPC,SOA,consistency	👉👉👉👉
Spring	IOC/AOP,Annotation,Spring Cloud	👉
HBase/Hive	basic,Modeling	👉👉👉👉👉
Spark	basic,AI	👉👉👉
Flink	basic	👉
ClickHouse	basic	👉
XGBoost	basic,impl	👉👉👉👉