Loading...
Sr.Staff, Back-end Engineer (Fintech Product Engineering) at Coupang
CoupangSeoul, South Korea·1w ago
SeniorFull-timeJavaScriptTypeScriptPythonJavaAWSKubernetesMicroservicesCI/CDGitGo
Salary Range
$132,600 - $179,400 /year
This salary is estimated based on similar roles. The actual salary may vary.
About the Role
Coupang Pay is transforming the digital payments experience at massive scale, powering millions of secure transactions every day across Coupang.com, Coupang Eats, and our ecosystem of merchants and partners. We are seeking a Staff Software Engineer who is both a visionary technical leader and a hands-on builder to deliver payment systems with industry-leading scale, resiliency, and speed.
Key Responsibilities
- →Architect, design, and implement complex, distributed, cloud-native systems spanning frontend, backend, APIs, data pipelines, and infrastructure.
- →Write and review production-grade code; optimize critical paths for performance, reliability, and correctness.
- →Deliver mission-critical features to millions of users with rapid iteration while maintaining high availability and data integrity.
- →Own large-scale payment microservices, event-driven pipelines, caching systems, and real-time APIs.
- →Drive adoption of AI/ML technologies—build or integrate AI agents and intelligent automations into payment workflows.
- →Mentor senior engineers and Sr.Staff-level peers, fostering a culture of innovation, technical rigor, and rapid delivery.
Requirements
- ✓Bachelor’s degree in Computer Science, Software Engineering, or related field.
- ✓12–15+ years of software engineering experience, with proven success in large-scale distributed systems.
- ✓Deep expertise in full-stack development (Java, Go, Python, JavaScript/TypeScript, or equivalent).
- ✓Hands-on architecture and design experience with microservices, event-driven systems, APIs, and real-time data processing.
- ✓Strong fundamentals in algorithms, data structures, concurrency, and system design.
- ✓Proven ability to deliver rapidly and reliably in fast-paced, high-growth environments.
