Abilities
- Understand SOLID principles
- Understand general data structures: Array, Linked List, Hash Map, Binary Heap, Segment Tree
- Understand general sort algorithms, search algorithms
- Analyze the time and space complexity of an algorithm
- Design testable implementations by removing side-effects
Abilities
- Design an webapp in MVC pattern
- Understand the lifecycle of React component
- Design an application state in Flux, Redux
- Understand HTTP
Experiences
- Develop apps using Closure Library, React at work
- Create this portfolio
- Create hybrid apps using Cordova&Ionic/Onsen UI
- Create browser games using Phaser
- Read most parts of Prototype.js, Script.aculo.us, Zepto.js, CreateJS, Hyperapp
Abilities
- Understand how general GC algotirhm works
- Understand how Spring DI works
- Develop an webapp using Spring MVC
- Design an application in model driven
- Implement a distributed batch using Spark
Experiences
- Develop webapps using Spring MVC at work
- Develop a distributed batch using Spark at work
- Join a open-sourced game server development of a MMORPG
Abilities
- Understand CAP theorem
- Understand general DB architectures: Master-Slave, Multi Masters, Consistent Hashing
- Understand general DB indexes: Binary Tree, Hash
- Design a table schema and relationships
- Optimize an execution plan and improve the query performance: Join methods, Partitioning, Padding Factor
Experiences
- Improve query performance in PostgreSQL, Oracle
- Create a trigger function to pool the update logs
- Solve HackerRank, LeetCode problems
Abilities
- Create simple tools
- Understand how memory heap and stack work
Experiences
- Implement popular algorithms
- Solve AtCoder, LeetCode problems
Experiences
- Implement popular algorithms
- Solve AtCoder problems
Experiences
- Create RPG Maker VX extensions
- Read most parts of RGSS2
Experiences
- Create access counters, guest books, simple blog systems from scratch
- Create FFAPHP extensions
- Read the authentication part in WordPress
Abilities
- Create useful tools using POSIX-compatible shell script
Experiences
- Customize my shell environment
Experiences
- Contribute to Spacemacs
- Customize my Emacs environment
Developing some subsystems of a financial system.
Developing a new attendance system product.
Accomplishments
- Setup a type checker for the project
- Maintain frontend coding conventions
Domestic tools to improve product developers' productivity.
A domestic framework to sync data between RDB and Cassandra.
Accomplishments
- Create a testing tool for product developers
- Create a data dumping feature to reproduce data-related issues
Creating a prototype for a Onboarding system product.
