This position is closed and is no longer accepting applications.

Full Stack Engineer (TypeScript)

Mico Minato-ku, Tokyo October 9 2025
  • 💴 ¥6M ~ ¥9M annually
  • 🏡
    Partially remote
  • 🗾 Japan residents only
  • 💬
    Conversational Japanese
    Business English
  • 🧪
    Intermediate level
    3+ years experience required

About Mico

Mico Minato-ku, Tokyo

We offer multiple products that deliver conversational experiences, including MicoCloud, a platform that is used by over 1,000 clients to reach over 29 million people.

Key benefits

  • A growing company in a growing market
  • Open and inclusive communication
  • Team over self

About the position

As a Full Stack Lead Engineer, you will lead or play a central role in Mico Engage AI’s development team.

Responsibilities

  • Stabilization of Mico Engage AI’s distribution infrastructure. You will be responsible for developing an infrastructure that enables reliable distribution even for clients with a large number of users.
  • Development of new functions: Develop functions to improve product value in line with the product roadmap.
  • Customer Request Development: Develop functions that are generalized and likely to be in demand among the requests that emerge from Customer Success activities.
  • Improvement Activities: Resolve Product Backlog Items, improve UI/UX, enhance and promote DX (Developer eXperience), etc. in response to daily needs from new/existing customers.

Requirements

  • 3+ years of working experience in system development or equivalent
  • Conversational Japanese skills
  • Backend coding using TypeScript, NestJS and an ORM
  • Database experience (SQL etc.) with a focus on balancing load, performance, and flexibility
  • Frontend coding TypeScript and React

Nice to haves

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

  • Experience of leading a development team
  • Experience in product management of web/mobile applications
  • Experience working for a start-up company
  • Experience of working in an international development team
  • Experience of conducting recruitment interviews with at least 5 candidates and evaluating them based on the recruitment requirements

Compensation

¥6,000,000 ~ ¥9,000,000 annually.

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