English summary for screening — check the original posting before applying.
Backend Engineer needed to take a central role in internalizing the development of the GANMA! manga app's core backend systems. This role involves knowledge transfer and building technical leadership over 1-2 years as the company transitions from external partners to in-house development.
Must-haves
- 3+ years of server-side development experience (Java, Scala, or Kotlin)
- Experience in RDBMS design and development
- Production operation experience in cloud environments (e.g., AWS)
- Team development experience using Git
- Basic understanding of software architecture (DDD, Clean Architecture)
Nice-to-haves
- Practical experience with Scala (ZIO, Cats Effect)
- Experience designing and operating payment systems
- Kubernetes operation experience
- GraphQL design and development experience
- Experience promoting internalization from a vendor-reliant development system
Tech stack
JavaScalaKotlinAWSAuroraDynamoDBKubernetesGraphQLRESTDDDClean ArchitectureZIOCats Effect
Work style
Remote/Office hybrid (approx. 40-50% office attendance), Core hours: 10:00 - 16:00. Remote work limited to home as of 2026.
Other notes
Monthly salary: ¥460,000 - ¥1,000,000. Annual salary: ¥5,600,000 - ¥12,000,000.