Senior Frontend Engineer

Taito, Tokyo   |   Full Time


Although the domestic manufacturing industry is estimated to be worth 180 trillion yen, many manufacturers and their suppliers are unable to fully demonstrate their development potential and technological capabilities because they are hindered by quotations and administrative tasks, as well as a lack of sales force and information.

CADDi’s mission is to remove those restrictions in various aspects of the industry and unleash each company’s potential to the fullest. We introduce technology to drive digital transformation in the industry so that all manufactures - from small factories and established leading manufactures to new start-ups - can thrive and add new value to the world. Will you bring your skill to create such a future with us?

Unleash the potential of manufacturing from the frontend

  CADDi’s ordering and supply platform is still a work in progress. As our client base, the scope of our service, and the scale of transactions are rapidly expanding, operating processes are in a constant state of improvement and evolution. As such, the requirements for UI/UX also change from day to day. That’s why our frontend applications need to be resistant to changes while maintaining high operability.

  In addition to the core platform, we are creating a range of new products to support the platform. At CADDi, we provide optimal UI/UX for different purposes and skillsets to bring forth transformational change in the manufacturing industry and day-to-day operations of people supporting the industry.


  • Design and implementation of web frontend systems for systems used by CADDi’s operation team, clients and their suppliers
  • Formulate and implement UI/UX improvement plans based on feedback from our business team
  • UI/UX improvements based on various qualitative and quantitative research (user surveys, log analysis, inquiry analysis, etc.)
  • Selection and verification of middleware, frameworks and other technologies

Development Environment

  • Development language
    • Frontend: HTML, CSS, TypeScript
    • Backend: TypeScript, Rust, Kotlin
  • Frameworks
    • Frontend: React, Apollo, Next.js, styled-components, WebGL, WebAssembly
    • Backend: Rust (tokio, tonic, diesel), Kotlin (Micronaut, Exposed), Node.js (express, NestJS)
  • Infrastructure: GCP, GKE
  • Database: PostgreSQL, Firestore
  • API: GraphQL, REST, gRPC
  • Authentication: Auth0
  • Development tools: GitHub, CircleCI, Figma, Sentry, DataDog, Storybook
  • Communication tools: Slack, Discord, JIRA, Miro


  • An understanding our mission to unleash the potential of manufacturing
  • Development experience using modern frontend frameworks such as React, Vue, Angular
  • Hands-on experience programming with TypeScript
  • Ability to conduct hearings and test hypotheses to build powerful user experiences
  • Experience developing in a team using Git/GitHub

Preferred Qualifications

  • Hands-on experience building a service from scratch
  • Experience in user experience design
  • Experience styling with CSS-in-JS frameworks such as styled-component and emotion
  • Experience with backend development using Node.js or Deno
  • Experience with GraphQL and relevant libraries such as Apollo and urql
  • Experience investigating web page rendering performance
  • Development experience with SSR, CSR, SSG frameworks
  • Development experience using WebAssembly

For overseas candidates

  • Relocation support is available
  • Visa support is available
  • Japanese language educational support is available

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