Kotlin Multiplatform Mobile Engineer

  • Remote OK - Anywhere in Japan
  • Full-time
  • January 16, 2024
6,500,000 - 14,000,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Mid-level or above

Job Description

PayPay is looking for a Kotlin Multiplatform Mobile Engineer to build and maintain high quality and robust SDKs for development teams.

Main Responsibilities

  • Work closely with our App platform team to build and maintain core business logic SDKs
  • Support integrations with our Android and iOS feature teams
  • Active on improvement at platform/structure level
  • Define and follow coding standards, architecture principles, code reviews, build processes and testing
  • Promote collaboration by mentoring and sharing knowledge

Tech Stack

| Kotlin, Gradle

| Ktor, Coroutines, SQLDelight

| Github, Android Studio

| Firebase, AppsFlyer

| Slack, Zoom


  • Deep understanding of modern mobile development
  • Strong in Object Oriented design and Kotlin
  • Experience with the Android development
  • Strong passion for code quality and are not allergic to test cases
  • Familiarity with integration of Rest API
  • Strong sense of ownership
  • At least one mobile app you can show off in the interview
  • At least 3-5 years of professional experience.

Preferred Qualifications

  • More interest in KMM/platform work rather than feature development
  • At least one year of experience in KMM
  • Experience with GA/CI/CD tool(e.g. Bitrise)
  • Ability to develop SDKs while conducting unit tests
  • Knowledge of performance optimization
  • Ability to communicate with platform members and other development team in English
  • Familiarity with Agile development
  • Experience integrating and development payment service

PayPay 5 senses

Please refer PayPay 5 senses to learn what we value at work.

PayPay, a fintech company that achieved more than 47M users within around 3 years since its launch in 2018 has hugely diversified employees who are from 40 different countries.

Our biggest competitor is "cash". We are seeking for people who can accept this challenge positively, brush up the product at a tremendous speed that other companies could never achieve, and who are passionate about promoting and spreading such a financial life platform in a short time along with professionalism.

PayPay’s policies during COVID-19 are as follows:

  • PayPay has been transitioning to remote work to ensure employees safety during the pandemic, and we’ll continue this even after it subsides.

  • While we’re open to considering engineers looking to relocate to Japan, travel restrictions have made it difficult to give a clear timeframe for relocation.

  • Until COVID-19 is settled and we're ready to issue visas, you can start working remotely from abroad.

View PayPay's company page

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Kotlin Multiplatform Mobile Engineer at PayPay