Senior web developer (Japanese language not required)

Yudai Humanity Co., Ltd.

Job Overview

  • Employer Type Direct Hire
  • Industry Information Technology
  • English Level Business Level
  • Japanese Level Not necessary
  • Restricted to Domestic Applicants? Overseas applicants allowed
  • Visa Sponsorship Yes

Job Requirements


  • Frontend Experience
  • At least 4 years of focused JavaScript experience
  • Experience building complex, scalable web apps and APIs
  • Backend Experience
  • Strong Node.js experience
  • Confident in using backend infrastructure like MongoDB, Redis, Apache/Nginx, AWS, SQL technologies

General Skills and Best Practices

  • Advanced problem-solving and debugging skills: Deep experience in writing testable code
  • Adept at using profiling, logging, and browser tools for debugging
  • Adept at identifying and resolving feature edge cases
  • Well-versed in various types of web frameworks
  • Comfortable contributing to engineering-related infrastructure (CI/CD, Docker/Kubernetes, CM Tools)
  • Track record of high quality code review

It would be good if you have:

  • At least two years of React experience
  • Typescript experience
  • Previous team lead experience
  • Experience refactoring/migrating a large project
  • Experience making a real-time SPA (single page app) using websockets
  • Experience deploying, scaling cloud Infrastructure
  • Previous experience in implementing web security against XSS, query injections, CSRF, brute force attacks, etc.
  • Conversational Japanese language ability

And bonus points if you have:

  • Experimentation with deep learning, AI systems
  • SEO experience

Job Description

Senior Web Developer

We are looking for a talented Senior Web Developer with strong work experience in Angular, React, and Express/Node.

  • Is a self-starter that thrives on interesting challenges
  • Puts the customer first, not the technology
  • Embraces Agile development methodologies
  • Is a data-driven decision maker
  • Knows how to communicate effectively with non-technical employees
  • Is a considerate team player

Salary: 6M~9M

Working time: 10am~7pm

Working place: Tokyo, Chyoda-ku.

🏥 Health insurance and pension
💹 Stock options with a Silicon Valley style vesting schedule
☕️ Free coffee and breakfast
Paid leave

Engineer Interview Process:

  • Initial phone screen
  • Interviews with engineers (which may include a coding interview)
  • Coding project (apparently this is mandatory for remote interviewers but optional interviewees already in Tokyo)

For Frontend developer positions, they normally require 4 years of Javascript experience and experience working on complex, scalable web apps. They use Javascript on the backend as well and so they require strong Node.js experience. They also value being able to write testable code and being able to work with various types of web frameworks and CI/CD systems.

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Company Information

Company Profile

私たち、株式会社雄大ヒューマニティーは、日本で言われてきた『三方よし』の考え方を大切に、“海外国籍(外国人)の人材の確保や教育を考えられている企業様”“日本で働きたいとお考えられている海外の方々”それぞれに、適切なソリューションを提供しております。 Recruitment 『外国人人材紹介』 企業様には、海外国籍(外国人)の方々を、海外の方には日本の企業様をご紹介致します。海外国籍(外国人)の方を採用する際は、まず取得、在留資格や在留期間を確認する必要があります。日本人を雇用するときとは違う手続きがございますので、そのサポートを行います。... read more about Yudai Humanity Co., Ltd.
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Contact Us

Tokyo Office
C/O Global Village Media
1-7-20-B2 Yaesu, Chuo-ku, Tokyo
[email protected]