- Language: Java/JS(ES6+)/Golang/Kotlin/Swift/Rust/Shell/C99&CPP11+/Lua/Solidity
- DB/Cache: MySQL/PostgreSQL/MongoDB, Redis/Memcached
- Automation/Testing: Jenkins/GitlabCI, RobotFramework/JMeter/Selenium/JUnit/MochaJs
- Platform: FrontEnd/BackEnd/Android/iOS/ETH/EOS
- Framework: Laravel/AdonisJs, Gin/FastHttp/Express/Koa, VueJS/ReactJS/VanillaJS/SASS(SCSS)/LESS
- Cloud: Docker/K8S/GKE/S3/GCS
- Knowledge: FunctionalProgramming/Async, RDB/NoSQL, SoftwareEngineering/TDD/Refactoring/CI/CD/DevOps, AgileMethodology/Scrum/Kanban/XP, AOSP, BlockChain/DApps