Ichiro Iwai, Software Developer in Tokyo, Japan
Ichiro Iwai

Software Developer in Tokyo, Japan

Member since November 28, 2018
Ichiro is a mobile and web application developer who has been developing native iOS and Android applications, React Native mobile applications, and web back end for eight years. During the past few years, he has developed iOS apps by using Swift and Objective-C and Android apps by using Kotlin and native Java. He has also developed iOS and Android apps by using React-Native.
Ichiro is now available for hire




Tokyo, Japan



Preferred Environment

Xcode, Android Studio, Mac OS X, Slack, Windows, Visual Studio Code

The most amazing...

...application that I've developed in the past was an Android tablet game. It was developed in 4 months and gained millions of users after publishing to the store.


  • Lead Full-stack Mobile Developer

    2018 - 2019
    Modacity Inc
    • Developed a Modacity application (iOS Music Practice Application) by using Swift and Firebase. The app got over 100,000 downloads on the iTunes App Store and got over 5,000 in-app purchase subscription.
    • Worked with CEO of Modacity by using Slack and Jira.
    Technologies: Swift, iOS, Firebase, Audio Programming
  • Mobile App Developer

    2017 - 2018
    Shuya Pty, Ltd
    • Developed Tayket mobile application. App is the social app that can give and take unnecessary items between users.
    • Worked with web service back-end developer. I have worked on mobile front-end (iOS and Android).
    • Developed iOS application by using Objective-C language and Android application by using Kotlin language.
    Technologies: iOS, Android, Objective-C, Kotlin, Rest API
  • Full-stack Mobile Developer

    2016 - 2017
    SwitcheZ USA Inc
    • Developed iOS and Android SwitcheZ USA application to switch parking location between users.
    • Remotely work with communication on the Slack, manage tasks by Jira and Trello boards.
    • Worked as a full-stack developer, developed web backend APIs as well as mobile front-end.
    • Developed and published the app on both stores: iTunes and Google Play Store. Used Apple Map for iOS version and used Google map for Android version.
    Technologies: React Native, iOS, Android, Map SDK, RESTful API
  • iOS and Mac App Developer

    2016 - 2017
    • Developed a Remi.ai iOS app that can manage the fitness plan of users.
    • Worked in a remote-based contract, kept communication on Skype, and managed tasks by Trello.
    • Used iOS health kit framework and AI technology has been used in the API part.
    Technologies: Healthcare, Fitness, iOS, Swift, AI, Xcode
  • iOS Full Stack Developer

    2015 - 2016
    SmallScreen Apps Inc
    • Developed an iOS app with a web back end. Web back end has included API server and admin CMS panel.
    • Used CakePHP framework for the web back end. The iOS app has been developed by Objective-C.
    Technologies: Objective-C, GPS, CakePHP, MVC
  • Senior Full-Stack Developer

    2012 - 2015
    InfiniteDesign Co, Ltd
    • Developed several iPad/iPhone/Android applications with web back end.
    • Implemented client-provided graphics and design.
    Technologies: Android, iOS, Objective-C, Swift, Java, Mobile, UX, PHP
  • Senior Android App Developer

    2011 - 2012
    7 Dragons, Inc
    • Developed several apps for Android tablets (Nook books and Amazon KindleFire) and games for 7 Dragons, Inc as a contracted mobile developer.
    • Used OpenGL ES technology for user-friendly interfaces.
    • Published apps to Nook App Store and Amazon App Store.
    Technologies: Android, Mobile, OpenGL ES, Tablet


  • Modacity - iOS Music Practice Application. (Development)

    An iOS music practice application that I have developed by using Swift. Used Firebase as a back-end.

    Swift version - finally updated to 5.0.
    Database - Firebase realtime database.
    Authentication - Firebase auth.

  • Nets Lean App - iPad Healthcare Project Toolkit (Development)

    iPad healthcare project management application for NETS (North East Transformation System). I worked as a full-stack mobile developer for InfiniteDesign Co, Ltd and developed this iPad application. On this project, the most important thing was to manage the SQLite and iPad UI. Also, it included Paint-like tool development as well.

  • Remi.ai iOS and Mac OS App Development - Machine Learning Product (Development)

    Remi AI is the creator of the leading platform for supply chain and pricing optimization, allowing companies to find significant business value through automated optimization across these critical areas. Included iOS app and Mac OS app development (by using Objective-C in Xcode)

  • SwitcheZ USA - Mobile Car Parking Location Social Application (Development)

    SwitcheZ USA® is the free college parking app that helps college student’s find parking safely and grows each student’s social and business network.

    Available for both of iOS and Android platform.

  • Solitaire Package - Android Tablet Game Application (Development)

    Open GL ES based Android tablet game application. It included 5 kinds of solitaire games. This game has been developed for Nook e-Book and Amazon KindleFire (both are Android tablets) and published to B&N App Store and Amazon App Store.

    It hit the Top 10 game application in B&N App Store within 3 months after launch. Now the game is available in Amazon App Store.

  • LeanApp QI - iPad and Android Tablet Project Management Tool Application (Development)

    An iOS and Android project management tool application. Designed and developed for tablet sizes (iPad and Android tablets). I have developed this application for InfiniteDesign Co, Ltd. At the moment, the app is available on the Google Play Store.

  • Kids Animation Story Book Application Development (Development)

    Developed 2 kids animation story book application for iOS.

    Lazy Birds - https://apps.apple.com/us/app/lazy-bird/id524743398

    Doubting Dasha - https://apps.apple.com/us/app/doubting-dasha/id614110016

  • Explore Hadrian’s Wall Explore App (Development)

    Hadrian's Wall Trails is designed for use at various locations along the Wall to enhance your visit to Hadrian's Wall Country. Developed for Android phones. Included Google Map views and used SQLite technology.

  • Christmas Tree Maker - Android Tablet App (Development)

    OpenGL ES based Christmas Tree maker application for Android tablet. I have developed this app for 7 Dragons Inc, published to Barnes & Noble App Store and Amazon App Store. Because of the performance for Android tablet large screen size, I have used OpenGL ES technology. Published with $1 price and got 30,000 users to download it during the Christmas season.

  • Tayket - iOS and Android Social Application (Development)

    iOS and Android mobile application that can give and take unnecessary items between users.


  • Languages

    Swift, Kotlin, Java, Objective-C, Swift 4, Swift 5, JavaScript
  • Frameworks

    Core Location, React Native, Redux
  • Libraries/APIs

    Firebase iOS SDK, CocoaPods, React, Core Animation, OpenGL ES, Redux-saga
  • Tools

    Xcode, Git
  • Paradigms

  • Platforms

    iOS, Android, Mobile, Firebase
  • Storage

    SQLite, JSON
  • Other

    RESTful APIs, Mobile Apps, iPhone X, Hybrid Frameworks, Mobile Game Development


  • Bachelor of Engineering degree in Faculty of Science and Engineering
    2008 - 2012
    Waseda University - Tokyo, Japen

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