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[Responsibilities]

In LINE Mobile Client, there are things you can learn because it is LINE.

- Experience of developing messenger apps for billions of users

- Architecture that processes billions of messages

- Synchronization technology to multi-devices

- Latest technologies and frameworks

In LINE Mobile Client, you can do something interesting. For example,

- Make new functions such as pop-up stickers to enrich user communication

- Create a backup function to protect users’ valuable chat history

　etc., able to develop function to respond directly to the needs of users.

Specific tasks are as follows.

- Collaborate with planning team and design team to shape ideas (programming, unit testing)

- Conduct Profiling of app to improve performance

- Improve the CI environment to support the stable development of many people.

- Develop a variety of new function.

- Use code review to improve code quality.

You will be working on one of the following services. (※It will be 

determined in consideration of your desire and past experience during 

screening process)

1. LINE platform development

You will be responsible for developing Android / iOS app for LINE Messenger.

2. LINE Family app, etc. development

　You will be responsible for developing Android / iOS app running on the LINE platform. (ex : LINE Q, LINE Man, LINE Pay, etc.)

[Qualifications]

【Required Experience & Skills】

One of the following experiences is required.

- Experience in developing iOS native application with Objective-C / Swift

- Experience in developing Android native application with Java

【Preferred】

- Basic knowledge of computer science (algorithm, data structure, database, network, etc.)

- Basic knowledge of networks such as TCP / UDP and HTTP

- Knowledge of mobile network and developing experience

- Understanding of OOP or FP Design, Debugging, Algorithm, Asynchronous IO, Data structure

- Ability to design and develop high level UI / UX

- Experience to respond to complex design needs (self-view or interaction, etc.)

- Experience in developing apps with back-end service using RESTful API

- Experience in participating or acting in open source software or community

- Business level fluency of English or Japanese

◆ iOS

- Experience in developing with Core Data, SQLite, or Realm

- Experience in tuning UIWebView or WKWebView, Experience in developing hybrid app

◆ Android

- Experience in developing data persistence processing using SQLite and SharedPreference, etc.

- Experience in developing asynchronous processing using RxAndroid, etc.

- Experience in developing Material Design with animation

- Experience in developing with NDK

【Expected Figures】

- Passion for developing global services

- Always willing to challenge new knowledge and technology

- Must be available for overseas business trip/position