This position is closed and is no longer accepting applications.

Senior Full Stack Engineer (Frontend Focus)


Shibuya-ku, Tokyo
    💴 ¥10M ~ ¥16M annually
    🏡 Fully remote
    🧪 Minimum years of experience unspecified
    💬 No Japanese required
    🌏 Apply from abroad
    🧳 Relocate to Japan

About Soundraw

Soundraw Shibuya-ku, Tokyo

SOUNDRAW is a music composition service for video creators. Simply specify the genre, the song length and the instruments you want, and the AI will generate music for you based on your needs. You can then choose a song you like from the generated music and customize it further: move the hook (or “high point”) of a song, change the tempo, or change the intensity of a bar to make the music fit your video perfectly.

Key benefits

  • Democratizing music composition
  • Be involved from the beginning
  • We value diversity

About the position

We are looking for a full stack software engineer to deal mainly with our front-end. We work with Ruby on Rails, so you still need to be very comfortable with back-end stuff. Our team so far has lacked someone with strong Frontend skills, so our UI/UX has a lot of room for improvement.

Your main mission will be to clean up the messy Frontend code and polish our current UI/UX. As new features are implemented, you will help make sure they look and feel great.

Additionally, we will soon start the development of a new product offering specific to music artists, which will require a dedicated engineer working full time on it.


  • Work with team members on each project, from system design to project management, development, and communication with stakeholders, sometimes taking the lead.
  • Discuss with other engineers the suitability of technical choices and contribute to the correct technical growth of the organization and individuals
  • Polish existing UI/UX and implement new features on the Frontend
  • Solidify the framework of a rapidly growing system and contribute to the growth of the engineering team through hiring, etc.
  • Define specifications: collaborate with PdM and designers, participate to user interviews, etc


  • Solid knowledge and experience as a back-end engineer, some with Ruby on Rails
  • Significant knowledge and experience as a Frontend engineer, using a library such as React, Vue, or Angular
  • Knowledge of semantic HTML5 and CSS3
  • Working experience and testing skills using Jest or other testing libraries
  • Experience working with APIs and understanding of HTTP and REST architectures
  • Strong knowledge of Git/Github
  • Experience in working in a Scrum environment and Project Management . We currently use Pivotal Tracker for task management.

Nice to haves

While not required, tell us if you have any of the following.

  • Experience in an early stage start-up
  • Experience working with TypeScript
  • UX design experience, including user testing, user interviews
  • Passion about user experience and interaction.
  • Knowledge of music theory, playing an instrument
  • Japanese language


10 to 16 million JPY annually.

Hiring Process

  1. 1

    Document screening

    The screening process will be based on the resume and work history.

  2. 2

    Casual interview

    Please feel free to talk with our staff first. What we talk about in the casual interview does not affect the selection process.

  3. 3

    Technical interview 1

    This will be a technical interview to gauge your coding skills.

  4. 4

    Technical interview 2

    The interview will be used to gauge architectural design and project management skills.

  5. 5


    Review our offer and join our team!

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