Senior Staff Back-end Engineer (Rocket Pay)
Core
Architecting and leading the technical strategy for Rocket Pay, a next-generation universal payment platform handling massive transaction volumes for Coupang's ecosystem and external merchants.
Role type
Senior Staff Backend Engineer (Fintech/Payment)
Builds
Rocket Pay platform, Wallet, Authorization, Settlement, Reconciliation, and Merchant Services
Domain
Fintech, Payments, Banking as a Service (BaaS)
Required skills
Large-scale distributed system design, Java/Kotlin, Spring Framework, System architecture, Performance optimization, Data consistency, Security, Technical leadership, Problem structuring
Preferred skills
JPA/MSA architecture migration, Payment/Fintech domain expertise, High-traffic incident response, Large-scale data processing, Agile technical leadership
Technologies
Java, Kotlin, Spring Framework, JPA, MSA
Responsibilities
Define technical direction for core Rocket Pay domains, Lead architecture and engineering strategy, Ensure end-to-end system stability and scalability, Conduct design reviews and mentor engineers
Seniority
Senior Staff, hands-on IC with strategic leadership