Leading Marui Group's Tech Domain | Epos Card with Annual Transaction Value of 4.9 Trillion JPY | Seeking Backend Engineer to Promote Re-architecture! ◎◇1English summary from Japanese

株式会社マルイユナイト

✓ Detailed

Salary

6 million JPY - 12 million JPY

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

Marui Group's tech company, Marui Unite, is seeking a Backend Engineer to lead the re-architecture of the Epos Card's core system. This role involves migrating a 20+ year old monolithic system to a cloud-native microservices architecture, impacting a service with 8 million members and 4.7 trillion JPY in annual transaction value.

Must-haves

5+ years of backend development experience in web services
Experience designing and developing new features
Experience involved in architectural design and technical decision-making

Nice-to-haves

Experience in large-scale or highly complex systems
Experience modernizing legacy systems
Practical experience with microservices and API design
Experience with CI/CD and DevOps implementation/improvement
Experience in financial, FinTech, payment, or membership management systems
Experience designing non-functional requirements (performance, availability, security)

Tech stack

JavaSwift

About the Company