Frontend Engineer

1ヶ月前

Tokyo Hays ￥4,000,000 - ￥10,000,000 per year
We are seeking a Lead Frontend Engineer skilled in both and (React)


NOTE:
This is a contract position. The candidates have to currently based in Japan to apply for this role.

Your new company


A company that provides and operates flexible office spaces in over 800 locations across 151 cities in 38 countries worldwide.

Your new role

We are seeking a Lead Frontend Engineer skilled in both and (React) to join our diverse and fast-moving technology team.

You will work on a variety of projects, from maintaining and improving existing applications to building new, high-performing interfaces for modern web platforms.

You'll collaborate closely with backend, mobile, and QA teams to deliver clean, scalable, and maintainable front-end solutions while continuously improving our architecture and performance standards.


Responsibilities:


  • Develop, maintain, and enhance web applications using ) and React ).


  • Collaborate with product managers, designers, and backend engineers to implement intuitive and responsive user interfaces.



  • Ensure consistency, accessibility, and performance across browsers and devices.


  • Write clean, testable, and modular code following modern JavaScript standards (ES6+)
Implement and maintain unit and integration tests for frontend components.

  • Participate in code reviews, providing constructive feedback to peers.


  • Optimize builds and CI/CD workflows for efficient deployments.


  • Leverage AI-assisted tools to enhance code quality, speed up debugging, and improve productivity.


  • Stay up to date with modern frontend technologies, trends, and best practices.
What you'll need to succeed


Must-Have:


  • 4+ years of professional frontend development experience.


  • Strong proficiency in both ) and React ).


  • Deep understanding of modern JavaScript (ES6+), HTML5, and CSS3.


  • Experience with frontend testing frameworks (e.g., Jest, Vitest, Cypress).


  • Familiarity with RESTful APIs and JSON-based integrations.


  • Experience using Git and working in Agile development teams.


  • Business-level English communication skills.

Nice-to-Have:


  • TypeScript experience.


  • Knowledge of CI/CD tools (GitHub Actions, CircleCI) and version control best practices.


  • Experience with accessibility and internationalization (i18n).


  • Business-level Japanese communication skills.


  • Experience using AI tools to assist in coding, refactoring, or documentation.


  • Experience transforming Figma-based design specifications into fully functional, responsive pages.


  • Experience in implementing SEO best practices.


  • Hands-on experience integrating LINE Front-end Framework (LIFF) into web applications
What you need to do now


If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.


If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

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