Frontend Developer

Tokyo
Partial Remote
Full-time
July 8, 2025

Founded in Tokyo in 2016, PlayBrain develops and fosters communication channels with gamers. From our Tokyo headquarters, we are part of the Japanese gaming community, allowing us to understand the interests and passions directly. With our strong international network, we connect with gamers and businesses involved with games around the world creating unique opportunities in Japan and abroad.

PlayBrain is hiring a Frontend Engineer to work on the development of the gaming web platform TAIYORO and the live streaming support tool CGPC.

TAIYORO aims to become a core part of Japan’s gaming and esports culture, and in this role, you will have the opportunity to help shape its future. In addition, you will also be involved in client projects such as creating websites for game-related promotions and campaigns.

CGPC is a web application that supports live streaming during "League of Legends" tournament broadcasts.

Within the team, English is mainly used, though Japanese is also spoken. Depending on conditions, partial remote work and flexible working hours are possible.

Responsibilities

Frontend implementation of web applications such as a gaming web platform supporting game events and esports tournament streaming, and live streaming support tools.
Issue management, version control, and code review using Gitlab
Teamwork skills (mainly communication skills
Write tests that validate the stability and correctness of implementations
Handle refactorings with care

Requirements

5+ years of frontend development experience using modern frontend frameworks such as React/Next.js
Deep understanding of CSS, HTML and an ability to translate designs into clean code
A knack for writing clean, readable code
Willingness to learn and experiment with new technology
Conversational-level Japanese

Nice to haves

AWS experience (S3 & Lambda）
Animations experience (react-springs)
Realtime Firebase data base
A designer background / styled-components.
Python experience
Strong testing methodology
Shopify experience
The experience of headless CMS such as Sanity
3.js or WebGL to help create a stunning/interactive/3d landing page

APPLY NOW ➜Japanese Required ⚠️

About PlayBrain

Playbrain is a leading marketing agency in Japan’s gaming industry.

As a trusted partner connecting game developers, publishers, brands, and gamers, the company offers a wide range of services—including planning and operating esports events, managing its own live-streaming studio and online store, developing products, and providing analytical reports based on streaming data.

With strong multilingual capabilities, Playbrain also has a proven track record in marketing for esports and gamers, as well as in bringing game-related merchandise to the Japanese market.

The company has produced numerous events for popular titles such as League of Legends, eFootball, Rainbow Six Siege, and Brawl Stars.