Senior Frontend Engineer

Headquartered in Tokyo since 2001, the company now sells in 40 countries and supports customers in 11 languages. Our engineering group is split into roughly 60 product teams, each owning its services end to end, with on-call shared across time zones. Founded in 2001, we now have 280 employees.

The position:

We're looking for a Senior Frontend Engineer to join our team. This is a remote role. This role sits between design and backend engineering. Expect to spend most of your time in TypeScript, CSS and browser dev tools. This role is fully remote within Japan. Few meetings, lots of written updates.

Duties:

• Migrate legacy jQuery or AngularJS pages to the current stack
• Build UI features in React and TypeScript from Figma designs
• Track down cross-browser bugs in Safari, Chrome, Firefox and mobile browsers
• Maintain and extend the shared component library in Storybook
• Add analytics events and help product read the results
• Profile and reduce bundle size, Core Web Vitals and time to interactive
• Integrate with REST and GraphQL APIs and handle loading, error and empty states properly
• Manage client state with Redux Toolkit, Zustand or TanStack Query

Minimum qualifications:

• 5+ years building production web applications
• Deep working knowledge of React (hooks, context, rendering behaviour)
• Comfortable using browser dev tools to debug network, layout and performance issues
• Able to explain frontend tradeoffs to designers and product managers
• Git and a pull request based workflow

Preferred qualifications:

• Next.js or Remix with server-side rendering
• Internationalization (i18n) and right-to-left layouts
• Visual regression testing with Chromatic or Percy
• Figma, including Dev Mode

Pay: ¥8,700,000 - ¥12,000,000/year

What we offer:

• Retirement allowance
• Paid leave
• Remote work allowed
• Social insurance
• Bonus twice a year
• Flexible hours
• Housing allowance

Please submit your CV in English.

Start: Immediately.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at LJ Software Co., Ltd..