Senior Software Engineer - bitFlyer

Summary

You will be responsible for developing the Android native app for the cryptocurrency exchange bitFlyer and addressing technical challenges.

Specific duties include:

• Closely collaborating with other departments, including project owners, leveraging your technical background to plan, define, document, develop (coding and unit test creation), and release the service. 
• Continuously refactoring the codebase to provide long-term stable value. 
• Contributing to code quality assurance and knowledge accumulation through code reviews on GitHub. 
• Improving and maintaining the CI environment. 

Required Qualifications

• Over 5 years of experience developing native Android apps using Kotlin or Java.
• Deep knowledge of Android standard libraries and Jetpack.
• In-depth knowledge of UI based on Material Design.
• Experience implementing unit tests using testing frameworks.
• Experience developing in a team using Git and GitHub.
• Business-level proficiency in Japanese or English.

Preferred Qualifications

• Experience developing and operating native apps for services with a large user base.
• Experience leading a team composed of multiple members.

Desired Characteristics

• Confidence in your ability to grow.
• Proactive in communication and action.
• Interest and responsibility in financial products that require top-tier quality.
• Curiosity about a wide range of knowledge and technologies.
• Interest in the customers behind the products.
• Interest in user-friendly UI/UX.

Technical Stack and Development Environment

• Development Languages: Kotlin (73%) / Java (8%) / Others (19%)
• Main Libraries: Android Jetpack / Jetpack Compose / OkHttp / Retrofit / Dagger / RxJava / RxKotlin / Kotlin / Coroutines
• IDE / Build Tools: Android Studio / Gradle
• CI: GitHub Actions
• Monitoring: Firebase / Sentry
• Others: GitHub / Slack / Confluence / Jira / Figma

Skills

• Communications Skills
• Development
• Java
• Software Engineering
• Team Training and Development