Coupang

Senior Back-end Engineer (Cloud Infrastructure Automation)

Coupang
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12 hours ago
Seoul, Korea, SouthSenior

Responsibilities

  • Design, build, maintain, and scale high-performance, highly available backend services supporting 10X business growth.
  • Architect distributed systems and APIs capable of handling massive concurrency with sub-millisecond latency.
  • Define technical vision and architecture for cloud infrastructure targeting 99.999% availability.
  • Build self-service platform tools and end-to-end cloud deployment automation using Terraform, Python, and Go.
  • Optimize Kubernetes and Docker environments, CI/CD pipelines, and automated testing and monitoring systems.
  • Identify performance bottlenecks, optimize cloud infrastructure usage, and apply security and networking best practices.
  • Solve complex technical problems across AWS, GCP, Azure, and hybrid-cloud environments.
  • Provide technical influence through mentorship, architecture reviews, and knowledge sharing across global engineering teams.

Requirements

  • Bachelor’s or Master’s degree in Computer Science or a related technical field, or equivalent practical experience.
  • At least 5 years of hands-on backend engineering experience and experience building large-scale distributed systems in production.
  • Strong proficiency in one or more of Go, Python, Java, or C++.
  • Experience designing and operating large-scale architectures using public cloud services such as AWS, GCP, or Azure.
  • Deep expertise in Kubernetes, Docker, Linux internals, and Infrastructure as Code tools such as Terraform.
  • Experience delivering backend systems requiring 99.999% uptime and low-latency performance.
  • Hands-on experience with database management, automated CI/CD deployment pipelines, and microservices architecture.
  • Strong problem-solving, analytical, cross-functional collaboration, and communication skills.

Benefits

  • Full-time regular employment with a 12-week probation period, which may be skipped, shortened, or extended for business purposes.
Coupang

About Coupang

5,001-10,000 employees

Coupang builds and operates a South Korea–focused e-commerce marketplace with an end-to-end logistics network (Rocket Delivery), plus food delivery, video streaming, and fintech under brands such as Coupang, Eats, and Play. Revenue comes from first-party retail, third-party marketplace services, advertising, and memberships (Rocket WOW). Founded in 2010, the company is headquartered in Seattle and is publicly listed on the NYSE (CPNG).

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