Senior Full Stack Engineer

Kamikai Minato-ku, Tokyo April 10 2026
  • 💴 No salary range given
  • 🏢
    No remote
  • 🌏
    Apply from abroad
    Relocate to Japan
  • 💬
    No Japanese required
    Business English
  • 🧪
    Senior level
    5+ years experience required
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About Kamikai

Kamikai Minato-ku, Tokyo

Kamikai builds production-ready AI tools for professional anime studios to accelerate the entire animation pipeline and keep artists in creative control.

About the position

As an early engineer, you’ll own core product and infrastructure decisions as we scale our software across studios.

Expect to own large areas of the product end-to-end. That means backend work with ML inference systems, scaling infrastructure, making architecture decisions that stick, building agentic workflows, doing customer-facing work with studios, and helping draft specs for what comes next. This is not a narrow role - you’ll operate across the full surface area of the product.

Requirements

  • 5+ years building and shipping software at scale
  • T-shaped: deep expertise in your core area, but comfortable contributing across the stack - TypeScript, React, Node.js, Python, PostgreSQL, Docker, AWS
  • Track record of building things from scratch - startups, side projects, open source, products you shipped end-to-end
  • Genuine interest in the creative/anime space - side projects, art, content creation, anything that shows intrinsic motivation beyond the paycheck
  • English fluency
  • Based in Japan or willing to relocate (visa sponsorship available)

Nice to haves

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

  • Japanese ability

Hiring Process

  1. 1

    Quick phone call

    A 15 minute call, we feel out if it could be a good fit.

  2. 2

    One-hour technical interview

    System design focused, no live coding.

  3. 3

    Paid work trial

    Experience what it’s actually like to work together.

  4. 4

    Offer

APPLY FOR THIS POSITION
DO YOU NEED MORE INFO?
ASK A QUESTION

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