Henpai Hsu

I have more than  5 years experience as Frontend A self-driven programmer who won't constrain learning by business requirements. I enjoy solving problems with my teammates, even it's not mine. I've been focusing on modern web architecture, including tooling and automation since the beginning of my career.

Software Engineer
TPE，TW
dreamfliper@gmail.com

Experience

Senior Frontend | Mexc , Dec 2023 - Present

  • Migrate SSR to RSC in NextJS project.
  • Performance tuning in micro frontend architecture under UmiJS.
  • Techstack: UmiJS / Zustand / AntD

Senior Frontend |  Rezio (KKday Group), Feb 2021 - Dec 2023

  • Responsible as a team lead and couch other teammates. 
  • Introduce E2E test, Unit test, and Storybook, and Better typing in Typescript to to improve the stability and DX. 
  • Refactor legacy JS codebase to Typescript with not only type but with better structure. Ex: more explicit utility and well testing pure functions. 
  • Introduce Jotai to replace Mobx, MST, and Mobx-keystone base on team's will. - Host Typescript FP and Workshop Internally. 
  • Techstack: Expo / Mobx / React-Hook-Form / React-Reactive-Form / GraphQL / NextJS

Senior Frontend |  Positivegrid, Dec 2019 - Sep 2020

  • Develop campaign page with Bigcommerce, handlebars, stencil in vanilla Javascript  
  • Redesign architecture for service migration, from Heroku + GCP to both Ali-cloud and AWS 
  • Migrate Firebase Firestore to MongoDB 
  • Develop new APIs in Flask(Python) with other DSP engineer
  • Introduce Docker and create create Linux CLI tool docker environment for audio process
  • Dockerfy several backend servers for the K8S cluster  
  • Analyze traffic by Newrelic and Papertrail 

Frontend |  Positivegrid, Dec 2018 - Dec 2019

  • Implement various MVPs with designers in React SSR 
  • Add PWA ability to the product and pass the verification 
  • Develop AMP version info page for SEO 
  • Tuning SEO and made impression improved from less than 100/day to over 10000/day in 8 month 
  • Develop APIs in Express with NextJS 
  • Firebase Firestore / Firebase Function
  • SPA Performance tuning 
  • Refactor python flask server and modularize for supporting various video service 

Front-end | PRO360, Oct 2017 - Dec 2018

  • Front-end developer.
  • Responsible for implement most new features with designer and product owner
  • Introduce Stylus into the team for style management 
  • Refactor legacy code with ES6 syntax and modern API in React, Redux with Service Side Rendering

Projects

Sublime Mark

  • The marking system that I ported from Sublime Text to VSCdoe
  • Tech Stack: Typescript

HomePage

  • A Website of personal information.
  • Tech Stacks: React, Redux, Less, Ant-Design, Dropbox Api, Webpack, ESLint, Prittier, Styled-component, Flow, Travis CI.

subTrans

  • Drag and drop text files with content preview in the window. 
  • Converting text between Simplified Chinese and Traditional Chinese, and save files to local storage.
  • Support Windows, macOS, and Linux with naive-like desktop application UI.
  • Tech Stacks: Vue, Vuex, Bulma, Electron, File I/O, Pug(Jade), Stylus, Webpack.

Array utilities

  • Implement some RxJS-like operator to array prototype, including Mix, Diff, and Partition

Skills

Javascript

Typescript / Ramda / RxJS / ES6 / Functional Programming / Flow type / Jest / AVA / Testcafe

Front-end Framework

React / Storybook / Redxu-saga / Vue / Vuex / Electron / AMP / PWA / Scaled SPA / Server side rendering

CSS related

Emotion / Styled-component / Less / Stylus / CSSModule

Bootstrap / Ant-Design / Bulma / Font-Awesome

Back-end

Koa / Express / MongoDB / Postgres / Ruby on Rails / Elixir

Docker / Newrelic / Papertrail / PM2 / config GCP

Development Tool

Git : rebase / cherry-pick / blame / bisect / patch / Husky

Webpack / Rollup: Analyzer / Auto external / Terser / Alias

Travis CI / ESLint / Style Lint /Prettier

Others

Python / Objective-C / C(embedded)

Education 

National Chung Cheng University - 2013

  • Bachelor of Electrical Engineering

National Tsing Hua University - 2015

  • Master of Computer Science
  • Thesis: EcoMini - Design hardware of Bluetooth 4.0 wireless sensor board, from electronic schematic to physical layout. Develop the firmware of EcoMini and other CC2541-base board.

Additional

  • Language: Fluent in Mandarin, fair in English (Toeic 800 points).
  • Interests: Make a plan before coding, Leaning tools, Adjust daily workflow. Reading tech articles

Full Resume