Front-end engineer

Foreign nationals residing overseas
are welcome to apply for our job openings.

JOB DETAILS

We are planning to launch a new e-commerce service and are seeking a front-end engineer for the service.
Our development team has a global, hybrid environment, split between HQ and China.
We welcome front-end engineers who are up for the challenge of building a large-scale system unique to Rakuten from scratch.

Job Description
Ensure system stability, performance monitoring, performance optimization, system architect design and maintenance, refactoring, optimization, and troubleshooting.
Provide a complete system from design, coding, testing, and deployment.
Communicate with the team, collaborating departments, and stakeholders.

WORK LOCATION

Tokyo

SALARY

Monthly salary: ¥301,000+
Salary increase : twice
Bonus : twice

WORKING HOURS

9:00～17:30

HOLIDAYS AND VACATIONS

Summer vacation, New Year’s holiday, annual paid leave, maternity leave, childcare leave, nursing care leave, menstrual leave,
special leave (congratulatory/condolence leave, volunteer leave, etc.)

INSUARANCE / EMPLOYEE BENEFIT

Employee pension insurance, health insurance, workers’ compensation insurance, employment insurance, etc.
Employee Benefits
Stock options available
Retirement benefits available
Other benefits include a cafeteria (breakfast, lunch, and dinner are generally free), a fitness gym (fees apply), and an employee stock ownership plan.

APPLICATION QUALIFICATIONS

[Requirements]

Minimum 5 years of practical experience as a Frontend Engineer or a similar role
At least 3 years of experience as a development leader or team lead
Proficient in modern frontend technologies including HTML5, CSS3, and JavaScript (ES6+)
Extensive experience with TypeScript for building scalable and maintainable applications
At least 3 years of specialized knowledge in frontend frameworks/libraries with React.js
Deep understanding of responsive design, cross-browser compatibility, and web accessibility (WCAG)
Knowledge of CSS preprocessors such as SASS, LESS, or CSS-in-JS solutions
Experience with version control systems such as Git
High problem-solving ability with attention to detail
Excellent communication skills, able to effectively convey technical issues and solutions to both technical and non-technical stakeholders
Japanese: Business level or higher
English: Business level or higher / TOEIC 800 or equivalent

[Preferred Requirements]

Experience with Backend-for-Frontend (BFF) architecture using Node.js
Experience with state management libraries such as Redux, MobX, or Zustand
Knowledge of testing frameworks and tools such as Jest, Cypress, and React Testing Library
Familiarity with design systems and component libraries such as Material-UI or Tailwind CSS
Understanding of performance optimization techniques such as lazy loading and code splitting
Experience with server-side rendering (SSR) and static site generation
(SSG)
Knowledge of CI/CD pipelines and deployment processes
Experience in Agile/Scrum environments

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