Language: java, python, c
Mobile language: android, ios (swift)
Script and front-end: javascript, bootstrap, angularjs, nodejs
Cloud: IAAS/PAAS related terms and technologies, public cloud, private cloud, hybrid cloud architecture, multi-cloud architecture
Big data: hadoop, zookeeper, spark, hbase, storm, samza
Database: mysql , oracle, db2, sql server2000, sql server 2005, mongodb, couchDB
cache: memcached, redis
message middleware: activemq, rabbitmq, kafka
Log analysis: Flume, logstash, elk, es
Development framework: java - spring spring-boot mybatis hibernate springmvc
python - jango tornado
soa&openapi: service registration, service removal, service governance, service downgrade, oauth2, hessian, json, dubbo
permissions: shiro, spring-security
protocol: http2, ssh, SPDY (predecessor of http2 protocol, made by google)
Asynchronous non-blocking technologies: nio, netty, mina
Complex matching: regular expressions (many developers are not precise)
Development management tools: maven, gradle, jenkins, sonar, jira and other project management tools
Test: LoadRunner, Jmeter, bodboy, junit
Encryption: md5, crc32, sha
Workflow: activiti, jbpm
Search: lucene
monitor: zabbix
Version management: git, svn
Open source community: github