IOS/Android App Development Engineer

  • Tokyo
  • Remote OK - Anywhere in Japan
  • Full-time
  • May 27, 2024
6,000,000 - 9,000,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Conversational
English: Conversational
Minimum Experience
Mid-level or above

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 and promptly resolve bugs when happens.
  • A strong willingness to learn new technologies and a spirit of challenge is essential.



  • Alignment with YStory's mission and vision.
  • Work experience as a mobile app engineer in consumer, e-commerce, or marketplace space
  • Work experience with iOS development using Swift, and/or Android development using Kotlin.
  • Work experience with development using Firebase.
  • Ability to develop with consideration for performance and scalability.
  • Communication skills to collaborate with stakeholders and execute product development.
  • Ability to review design documents from tools such as Figma and Canva.
  • (Preferred) Experience in project management or as a team leader.


Work Conditions

  • 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” or “flex time”)



  • Probation period: 6 months after joining (salary same as full time employment during this period).
  • Start date (option): ASAP (within 3 months is the target).

YStory is a Tokyo-based digital health company that’s using data to improve women’s health.

YStory provides cutting-edge technology to increase health literacy and achieve positive outlooks on aging among women.

They are in the process of developing JoyHer, an app that leverages AI-technology and medical science to provide personalized care tips for each user, especially through the stages of menopause.

YStory works in collaboration with Kyoto University’s Graduate School of Medicine, Department Gynecology and Obstetrics, and they are the #1 downloaded app for women’s health in Japan.

Come join this growing start-up to help transform and improve the well-being of women around the world!

View YStory's company page

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IOS/Android App Development Engineer at YStory