Job Description

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. ・Identifying and proposing improvements based on user behavior analysis and implementing those improvements. ・Maintaining and improving the app's performance.

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.

Expected Annual Salary

5,000,000 - 10,000,000 yen - Monthly salary = Annual salary ÷ 12 - Breakdown of monthly salary: -- Fixed overtime pay: Equivalent to 45 hours/month = hourly wage + 25% × 45 hours -- Base salary = Monthly salary – Fixed overtime pay - Additional legal overtime, night, and holiday work exceeding 45 hours/month will be compensated separately - Various allowances (commuting, remote work, etc.) provided separately - Performance-based bonus available in addition

Ideal Traits

A Team of Responsible Professionals As of November 2024, bitFlyer supports the trading of customer assets exceeding one trillion yen across our Japan, US, and EU locations. Developing reliable systems in such a dynamic market is both highly challenging and rewarding.

We aim to be a team of professionals who can shoulder this critical responsibility. Let’s shape the next generation of finance together. - Strong commitment to compliance - Empathy with bitFlyer's MVV (Mission, Vision, Values) - Passionate and sincere attitude - Agility and adaptability to change - Logical and effective communication skills - Strong problem-setting, solving, and execution capabilities

Job Location

・Head Office in Tokyo (Midtown Tower 30F, 9-7-1 Akasaka, Minato-ku, Tokyo) 　Direct access from Roppongi Station 　3-min walk from Nogizaka Station 　10-min walk from Roppongi-itchome Station ・Work In the Office is currently recommended

Allowances・Benefits

・Commutation Allowance ・Social insurances (health insurance, welfare annuity insurance, employment insurance, industrial accident compensation insurance) ・Book purchase support ・Free drinks, snacks, noodles, cut fruits, and Office massage

Holidays

・Saturdays, Sundays, Japanese public holidays ・Annual leaves ・Year-end and New Year holiday ・Congratulatory and condolence leave, maternity leave, childcare leave, birthday leave, etc.

Diversity

English version under preparation.

Office Environment

English version under preparation.

About bitFlyer

English version under preparation.