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Senior Android Developer

Salary not provided

AndroidiOS
English: Fluent

Minimum year of experience: 5

KOMOJU

Android Developer - Mobile POS & SDK

We are seeking an experienced Android Developer to help build out a Point of Sale (POS) application and mobile SDK that implements a platform API for payment processing. As the first Android engineer in our team, you will have significant influence over coding standards and framework adoption.

Our ideal candidate is passionate about mobile app development, has a strong grasp of testing principles, and is eager to work across multiple parts of the tech stack to deliver outstanding mobile experiences. This position is remote-first but requires relocation to Tokyo, Japan.

Responsibilities

  • Develop POS, Tap-to-Pay app, and mobile SDK offerings using Kotlin.
  • Collaborate with product managers and developers to define, design, and ship new features.
  • Integrate features with backend engineers and other technical stakeholders.
  • Engage with other programming languages and potentially contribute to the platform backend.
  • Participate in technical design and architecture reviews for both Android and iOS solutions.

Requirements

  • 5+ years of experience in mobile application development.
  • Proficiency in Android SDK and understanding of the mobile development lifecycle.
  • Familiarity with RESTful APIs for connecting apps to backend services.
  • Strong knowledge of mobile UI/UX principles, design patterns, and best practices.
  • Versatile, T-shaped developer able to contribute across multiple areas of the tech stack.
  • Effective communication and teamwork skills.
  • Knowledge of cross-platform frameworks for iOS and Android is a plus.

Nice to Have

  • Experience with iOS development and architecture.
  • Experience working within a Japanese business environment.
  • Experience mentoring or leading a technical team.
  • Business-level Japanese language proficiency.

Benefits

  • Remote work flexibility with available office space for collaboration.
  • 10 days regular vacation, plus 5 days summer and 5 days winter vacation.
  • Paid birthday holiday.
  • Budget for self-learning and professional development.
  • Japanese language training.
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