Frontend Engineer, City OS



Software Engineering
Tokyo, Japan
Posted on Sunday, April 30, 2023
Woven by Toyota is building mobility for a safer, happier and more sustainable world. A subsidiary of Toyota, Woven by Toyota develops and invests in new technologies, software, and business models that transform how we live, work and move. With a focus on software-defined vehicles, automated driving, data-driven intelligence, security, mobility services, embedded platforms, AI, and more, we build on Toyota's legacy of trust and safety to deliver mobility solutions for all.
For nearly a century, Toyota has been delivering products and services that improve lives. Its earliest offerings, which automated the simple manual task of weaving, have evolved into the safe, reliable, connected automobiles we enjoy and depend on today. Woven by Toyota is an integral part of Toyota’s vision for the next 100 years—a world where mobility is easier, safer and more enjoyable for more people.
Our unique global culture weaves modern Silicon Valley innovation and time-tested Japanese quality craftsmanship and operational excellence. These complementary strengths enable us to develop and deliver cutting-edge technology at scale—optimizing for safety, advancing clean energy and elevating well-being. We envision a human-centered future where world-class technology solutions expand global access to mobility, amplify the capabilities of drivers, and empower humanity to thrive.
Toyota's Woven City is a fully connected ecosystem powered by hydrogen fuel cells to be built at the base of Mt. Fuji in Japan. It is envisioned as a 'living laboratory' and 'ever evolving', incorporating a diversity of cutting-edge technologies. It will be the world's most programmable city. At the same time, it is also 'human-centric', serving the needs of its citizens and keeping people safe, comfortable and happy.
Our mission is to create the digital heart of Woven City: a software platform called "CityOS". All digitally connected services in the city will be orchestrated and delivered on this platform. The technical challenge is huge, and includes creating state-of-the-art systems for collaborating microservices, identity, authentication, privacy, security, data broking, IoT control, and much more. The platform will be open to third-party inventors who will collaborate with us to unlock the potential of the world's smartest city.
In particular, the frontend team is responsible for providing UI platforms for the systems, services, tools, and mechanisms that enable to store, manage and share data on the platform in secure, resilient, and privacy-respecting manner. Some of the responsibilities are to create admin tools, developer portals, webpages, and testing tools for service owners, developers, and consumers.
We empower other teams to deliver on their mission with modern technologies exploring new paradigms.
For more information about Woven City, please visit: https://www.woven-city.global/
We are hiring Engineers for individual contributor and team-bound engineer roles based in Tokyo. These roles report to a City OS Team Lead or Manager, focusing on building and delivering a set of UI tools and visual frontends within the platform.
Do you have what it takes to solve complex challenges in a distributed setting? Are you passionate about technology and how it can transform the world into a better place? Are you looking for a role where you can make an enormous impact on the future by empowering other engineers to build secure systems at a scale?


  • Own and manage frontend development for City OS internal UI tools, websites, and internal portals. Component re-usability and widget-based approach for project repo maintenance.
  • Work with security, data, and infra team to manage web hosting, domains, and authorization strategies.
  • Evaluate code including one provided by 3rd parties to ensure it meets industry standards, in valid, is properly structured, and is compatible with browsers, devices, or operating systems.
  • Develop processes and technical documentation and adhere to code standards that allow for scalable growth and development of the UI tools and portals.
  • Audit and repair issues as reported by stakeholders, troubleshooting and support issues.
  • Build and maintain the test, stage, and production versions of the UI tools and portals.
  • Create Web page layouts with optimized UX/UI and deep involvement in UX designing.
  • Partner with the UX design managers to optimize the UI UX, adapt design guidelines, assets creation, and provide them feedback.
  • Coordinate with service teams, service owners, team members, and other stakeholders to ensure requirements, documentation, implementations, and deployments.
  • Continuously evaluate UI design, performance, and functionality, maintain current knowledge of trends and best practices, and make thoughtful recommendations for improvements and long-lasting solutions.


  • Bachelor's degree in computer science, information technology, or related field.
  • 3+ years of web application development industry experience.
  • Strong knowledge of JS, JS frameworks and libraries, CSS, CSS pre-processors, HTML, etc.
  • Strong grasp on core JS, ability to switch between different JS frameworks and libraries like React and Vue, hands-on experience in state management systems.
  • Ability to build and implement API integrations between internal and third-party systems.
  • Extensive knowledge of web standards, browser compatibility, and usability and accessibility guidelines.
  • Working knowledge of interface design tools like Figma to create mocks, extract information from, and basic alteration operations.
  • Exceptional organizational skills, attention to detail, and follow through required to prioritize workload, handle multiple tasks, and meet deadlines in a fast-paced environment.
  • Strong creative designing mindset and UX designing interests.
  • Good communication, a proactive mindset, and strong problem-identification and solving skills.
  • Proficiency in conversational level English with formal English expression writing skills.


  • Experience with CI/CD using GitHub actions.
  • Experience in information architecture design.
  • Experience with E2E testing frameworks such as Cucumber and Cypress.
  • Basic knowledge of Kubernetes and cloud platforms like AWS and GCP.
  • Proficiency in conversational-level Japanese.
If you are currently located outside of Japan we will set up an interview over Google Hangout Meet or Skype.
・Competitive Salary - Based on skills and experience
・Work Hours - Flexible working time with NO core-hours
・Paid Holiday - 20 days per year (prorated)
・Sick Leave - 6 days per year (prorated)
・Holiday - Sat & Sun, Japanese National Holidays, and other days defined by the company
・Japanese Social Security - all applicable (Health Insurance, Pension, Workers’ Comp, and Unemployment Insurance, Long-term care insurance)
・In-house Training Program (software study/language study)
By submitting your application you agree to the following terms: click here.
Our Commitment
・We are an equal opportunity employer and value diversity.
・We pledge that any information we receive from candidates will be used ONLY for the purpose of hiring assessment.