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[Coupang Pay] Staff Back-end Engineer (Fintech Developer Platform)

Seoul💼 Full-time🗓 2026-09-22 → 2026-09-26

Core

Design and build developer platforms to innovate Coupang Pay's engineering experience and operate large-scale financial services stably.

Role type

Staff back-end engineer (Fintech Developer Platform)

Builds

Platform services for Coupang Pay business, high-availability infrastructure, and DevOps platforms

Domain

Fintech, Financial Services, Cloud Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

Unix/Linux system design and development, Container and cloud environment development, Programming languages (Python, Go, Java, Kotlin), Monitoring and large-scale system operations, CI/CD pipeline design and operations

Preferred skills

Structured problem solving in complex organizational growth, Prioritization in fast-changing environments, Fintech or financial software development experience, Financial IT regulation and compliance understanding, API Gateway and Service Mesh operations, Distributed systems and microservices architecture, Asynchronous messaging systems, Agile software development culture

Technologies

Docker, Kubernetes, AWS, Grafana, Loki, Prometheus

Responsibilities

Design and build platform services for Coupang Pay business, Operate infrastructure capable of handling large-scale payment traffic, Design and implement high-availability and disaster recovery architectures, Advance internal standard CI/CD and DevOps platforms, Build and operate platforms complying with financial security and regulatory requirements, Collaborate with Coupang tech organization for fintech-optimized operations

Seniority

Staff, hands-on IC

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