Frontend Engineer

,SWAG,,,!

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## Required skills

* Web: HTML, CSS, Javascript, React, Redux

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* Server-side render: react-router, express server, NextJS App router

* Performance: critical rendering path, event loop, interaction to next paint (INP), intersection observer

* Persist: Cookie, localStorage, IndexedDB

* Cache: CDN cache, server side fetch cache, redis, cache-control header, service worker fetch cache

* WebApp: PWA, service worker, push notification, i18n

* SEO: og headers, canonical headers, ld+json, sitemap/robot.txt

## Optional skills

* Others: webpack, socket.io, tween.js, PixiJS, Apple/Google/Samsung Pay, Web ASM

* Players: video.js, DASH.js, shaka-player, bitmovin, ...

* CI/CD: GitHub action/workflow, Dockerfile, pm2

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