Staff Back-end Engineer

USAFull-time2026-11-10

Core

Design, develop, and operate Coupang Pay's core payment services, platforms, and back-office settlement/reconciliation systems.

Role type

Staff back-end engineer (fintech)

Builds

Scalable, reliable, and secure payment systems and platforms

Domain

Fintech / Payments

Required skills

Java, Kotlin, Spring Framework, distributed systems, system architecture, code reviews, technical leadership

Preferred skills

JPA, microservices architecture, incident response, SLA improvement, large-scale data processing, agile methodology, technical influence

Technologies

Java, Kotlin, Spring Framework, JPA

Responsibilities

Design and operate core payment services and platforms; Lead improvements to scalability, reliability, security, and performance; Lead design of back-office, settlement, and reconciliation systems; Implement business requirements with accounting and treasury teams; Establish payment-domain technology strategy; Improve development quality through code and design reviews; Support team technical growth.

Seniority

Staff, hands-on IC with strategic leadership

About Coupang

5000+ Employees

Coupang is at the forefront of the AI and high-performance computing (HPC) revolution. We are building a next-generation cloud platform designed to provide developers, researchers, and enterprises with seamless, scalable, and powerful access to accelerated computing. As the demand for AI, machine learning, and data-intensive workloads skyrockets, we are looking for a visionary product leader to define the future of our core compute offerings.