English summary for screening — check the original posting before applying.
Yayoi is seeking Senior Engineers to modernize their billing platform, which supports over 4 million users and is crucial for new business developments. This role involves designing and developing the core billing system that underpins all of Yayoi's services and business models.
Must-haves
- 5+ years of development experience with Java in large-scale systems.
- Ability to understand business requirements and translate them into specifications.
- Experience identifying issues in existing implementations and proposing improvements or design changes.
Nice-to-haves
- Experience with subscription management platforms like Zuora.
- Knowledge of subscription, usage-based, or hybrid billing models.
- Experience modernizing legacy or operationally intensive systems.
- Experience collaborating with non-engineering departments (sales, marketing, finance, etc.).
Tech stack
JavaSpring BootMySQLOracleAWS (ECS, Lambda, RDS, Aurora, Code series)JenkinsGitHubSlackZoomBacklog
Work style
Hybrid work, with an expected one day per week in the Tokyo office. Business trips may be required.