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YStory

IOS/Android App Development Engineer

Salary
600万 - 900万
Location
Tokyo
Remote
On-site / hybrid
Visa
Sponsorship available
Language
Japanese: Conversational / English: Conversational
Posted
Dec 17, 2025
Kotlin
Swift
Firebase
iOS
Engineering
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Overview

Job Description

Utilize optimal technologies to implement various functions, including existing and new features of the "JoyHer" app.

Develop while closely communicating with designers based on screen transitions, considering feasibility.

Perform troubleshooting calmly and promptly address and resolve any bugs that occur.

A strong willingness to learn new technologies and a spirit of challenge is essential.

Required Skills

  • Alignment with YStory's mission and vision.
  • Experience in developing and operating consumer-facing apps, or experience in technical selection and codebase improvement, current or past affiliation with web, tech, or startup companies.
  • Mobile: Experience with iOS development using Swift and Android development using Kotlin.
  • Mobile:If you could only use swift or Kotlin but want to learn new language, we also welcome you to join us.
  • Data Platform: Experience with development using Firebase.
  • Ability to design and develop with consideration for performance and scalability.
  • Communication skills to collaborate with stakeholders and execute product development.
  • Japanese or English in communication level.
  • Ability to review design documents from tools such as Figma and Canva.
  • (Preferred) Experience in project management or as a team leader.
  • Work Conditions
  • Employment type (permanent employee, contractor, intern, etc.): Permanent employee, side jobs allowed.
  • Work location: Remote work allowed, with the ability to come to the Roppongi Hills ANRI CIRCLE Office once a month.
  • Working hours: Flexible working hours (no core time, no flexible time).
  • Salary
  • Monthly salary (including fixed overtime pay).
  • Determined based on skills, experience, and abilities.
  • Probation period: 6 months after joining (salary same as permanent employment during this period).

Quick Facts

CompanyYStory
LocationTokyo
Salary600万 - 900万
RemoteOn-site / hybrid
VisaAvailable
LanguageJapanese: Conversational / English: Conversational
Interested in this role?

Submit your application for this role at YStory.

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