Staff Backend Engineer Intelligent Cloud

Company Introduction

We exist to wow our customers. We know were doing the right thing when we hear our customers say How did we ever live without Coupang Born out of an obsession to make shopping eating and living easier than ever were collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce.

We are proud to have the best of both worlds a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang you will see yourself your colleagues your team and the company grow every day.

Our mission to build the future of commerce is real. We push the boundaries of whats possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on high-tech and hyper-connected world.

Role Overview

The Commerce team is responsible for building next-generation cloud commerce systems that power pricing billing usage metering and revenue generation for Coupangs cloud platform. This team operates as the backbone of the cloud business enabling accurate pricing discounting invoicing and real-time usage visibility for customers.

The systems are highly scalable and event-driven ingesting and processing massive volumes of dataincluding customer usage events and Kubernetes-driven infrastructure signals. As the platform scales from early-stage adoption to large-scale rollout it is expected to handle exponentially growing workloads potentially reaching hundreds of millions to billions of events while maintaining high performance and reliability.

A key focus of this team is building financial-grade systems that ensure accuracy consistency and correctness in billing pricing and revenue computation. These systems must provide real-time insights to customers while guaranteeing precise accounting of usage and charges.

-latencyhigh-throughputbackendservicesthatcansupportmulti-tenantcloudenvironmentsensurereliabilityunderrapidgrowthandmaintainstrictcorrectnessinrevenue-criticalworkflows.

What You Will Do

• Design and build scalable backend systems for pricing billing and usage metering
• Develop event-driven architectures to process large volumes of real-time usage and infrastructure data
• Build systems that provide real-time visibility into customer usage and billing metrics
• Design components for rate cards pricing plans discounting and multi-currency transactions
• Work on distributed systems that support exponential growth in customers and usage events
• Collaborate with product infrastructure and platform teams to build cloud-native commerce capabilities
• Ensure high levels of accuracy reliability and scalability in revenue-critical systems
• Contribute to architecture decisions and drive engineering best practices

Basic Qualifications

• 8 years of backend engineering experience
• Strong proficiency in Java-based backend development
• Experience working with cloud platforms (AWS preferred)
• Experience building event-driven architectures and distributed systems
• Experience designing and scaling high-throughput systems handling large volumes of events
• Experience working with AWS-managed databases (e.g. Aurora or similar OLTP systems)
• Familiarity with containerized systems and Kubernetes ecosystems
• Experience building real-time systems (e.g. usage tracking billing metering pipelines)
• Strong understanding of system design scalability and reliability principles
• Strong problem-solving skills with focus on efficiency and correctness
• Experience collaborating with cross-functional teams

Preferred Qualifications

• Experience with Golang for backend development
• Deep expertise in AWS ecosystem (compute storage distributed services)
• Experience designing large-scale event processing systems (hundreds of millions to billions of events)
• Experience building cloud commerce platforms billing systems or pricing engines
• Familiarity with real-time usage metering invoicing or revenue systems
• Experience working with Kubernetes-based observability signals (logs infra events metrics)
• Exposure to high-growth systems scaling from early stage to large production scale
• Experience building multi-tenant customer-facing cloud platforms

Type of work model

• Hybrid / Onsite / Remote working
• Our Hybrid work model: Coupang hybrid work model is designed to enable a culture of collaboration that acts a catalyst to enrich the experience of employees. Employees are required to work at least 3 days in the office per week with the flexibility to work from home 2 days a week depending on the role requirement. Some businesses may require more time in office due to nature of work.

Details to consider

• Those eligible for employment protection (recipients of veterans benefits the disabled etc.) may receive preferential treatment for employment in accordance with applicable laws.

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