Senior Back-end Engineer (Messaging and Caching Platform)

Seoul💼 Full-time🗓 2026-08-21 → 2026-09-26

Core

Design and build scalable, reliable messaging and caching infrastructure to support tera-bytes to peta-bytes of daily data processing for Coupang's commerce platform.

Role type

Senior IC backend engineer (distributed systems & cloud infrastructure)

Builds

High-availability messaging and caching platform services

Domain

E-commerce / Distributed Systems / Cloud Infrastructure

Deliverable

production ML models | product features | infrastructure

Required skills

Distributed systems design, Cloud operations (AWS), Kafka, Spark, Large-scale data processing, System architecture, Performance optimization, High availability engineering

Preferred skills

None stated

Technologies

AWS, Kafka, Spark

Responsibilities

Architect and build the Messaging and Caching Platform, Develop software to process tera-bytes to peta-bytes of data daily, Improve platform stability and performance to achieve 99.99%–99.999% availability, Collaborate with internal and external customers to deliver cutting-edge products

Seniority

Senior, hands-on IC

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About Coupang

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.