Airloft, Full-stack engineer, Aug 2020

A case that requires me to add some feature to an existing website written in PHP. The website is a platform that allows landlords to put their house on the platform, and tenants can use this platform to find houses they want.

• Add an embedded Google Maps in the landlords' house setup page.
• Record the latitude and longitude of the point where the user clicks, as the coordinate of the house.
  
• Change MySQL schema so that the coordinate will store the coordinate.
• Fix RWD on the searching page.
  

NPSC 2018 ~ NPSC 2020, Judge & Judge Leader, Jul ~ Nov 2018, 2019, 2020

An annual competitive programming contest hosted by NTUCC (Computer and Information Networking Center of National Taiwan University).

• Design, prepare, and review algorithmic problems for participants.
  
• Reviewed participants' codes and finalized the contest result.
• Judge system (kattis) and server maintenance: upgrade compiler from g++-5 to g++-9; use bitbucket webhook with php to auto update problems, use makefile to make sure the problem has no errors.
• The bridge between all judges and other departments.

ioicamp, Judge Maintainer, Teaching Assistant, Jan 2019 & Jan 2020 & Jan 2021

An annual camp hosted by NTU CSIE (Computer Science and Information Engineering department of National Taiwan University) students. Taught senior high school students advanced algorithms and data structures to boost their knowledge in computer science.

• Upgraded and maintained the online judge system for students.
• Learned Ruby on Rails, MySQL and optimized judge performance.
• Added several new features to the judge system: scoreboard auto refreshing, testdata copy and paste buttons, more options in contest settings (scoreboard freezing, disable specific languages, submission CD time), etc...
• Deploy official website for this event.
  

Dbux (Team project)

• A debugging tool as an extension currently available in VS Code, written in Node.JS.
• Interact with VS Code API to make web views, sidebars, buttons and commands.
• A babel plugin dbux-babel-plugin that modify user's javascript code to collect informations.
• A practice component that allows users to practice debugging.
• https://github.com/Domiii/dbux

Codeforces Command Line Tool

• User-friendly code submission tool via command line instead of browser.
• Updates submission status to users, refreshing in command line.
• Customized personal compiler configuration.
• Stores session in local storage, preventing the need for repeated login.
• Fetches and parses HTML to get information, such as submission id, submission status, login information and CSRF token.
  
• Written in Node.js, published as a npm package.
• https://github.com/edisonhello/codeforces-cli-tool

NTU CSIE Previous Exam Database

• A project launched by NTU CSIE Student Council.
  
• Designed the project from start to finish. Full stack development including frontend, backend, database design and service deployment.
  
• Written in Node.JS, with koa2, Vue.js, bootstrap 4 and EJS, service is running at CentOS 7 server with MongoDB as database.
  
• Provides admin pages to manage classes and past exam files.
  
• APIs for frontend and third-party applications to fetch information.
  
• Announcement system to show council news and notifications.
• Login system, linked with existing CSIE LDAP system.

Auto trading bot on Binance futures

• A Javascript written bot that opens or closes future positions.
  
• Connects web socket to update market information.
• Self-written indicators to make strategies.
• By backtesting, the bot have IRR over 240% (without leverage). ROI is 179% after start running for only two months (with 3x leverage), which is over 47000% IRR.
• Recent result as screenshot is uploaded at here: https://i.imgur.com/9iDI9RP.png