Senior Staff Backend Engineer

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Job Summary:

Coupang is one of the fastest-growing e-commerce companies in South Korea, dedicated to enhancing customer experiences in shopping and living. They are seeking a Senior Staff Backend Engineer to build systems and frameworks that improve developer productivity and deliver high availability and low latency solutions across the company.

Responsibilities:

• Deliver products that accelerate velocity and deliver business value using state of the art AI technologies (agentic frameworks, MCP)

• Do more with less. Have a keen eye for optimization and systemic improvements across the development lifecycle

• Design and build backend distributed systems and SDKs that can be leveraged across multiple backend systems and teams

• Collaborate with technical leaders across the organization to arrive at innovative and optimal design choices to solve business needs

• Be obsessed with Reliability. Take pride in delivering complex changes incrementally with long-term value and sustainability

• Demonstrate excellence resulting in scalable systems and services with the highest quality architecture and design

• Dive deep into critical system issues, proactively addressing similar root causes, and raise the bar on Operational Excellence

• Disseminate knowledge and technical expertise to a wide range of stakeholders across the company

Qualifications:

Required:

• Bachelor's degree in computer science, Electrical Engineering, Math, or a closely related field

• 8 years of experience in backend software development

• Proficiency in Java and the Spring Framework

• Experience working in cloud environments, particularly AWS

• Demonstrated experience in building and maintaining highly available, distributed systems

Preferred:

• Experience in server-side web app frameworks such as Spring Boot

• Experience with shift left methodologies focusing on high quality and faster time to market

• Deep understanding of modern web application architectures and design patterns that lead to high performance and scale

• Deep appreciation for metrics and observability with undeterred focus on raising the bar for the quality of services

• Tenacity to dive deep into complex issues, identifying root causes and resolving them

• 8 years of experience working in backend systems with a focus on Java

• 6 years of experience working in data technologies - SQL and NoSQL

• Expertise and working knowledge of AI technologies and toolsets, specifically on increasing developer velocity delivering business value

• Proven experience on delivering mission critical projects at large scale

• Experience with cloud computing - one or more of AWS/Azure/GCP

Company:

Coupang is an e-commerce platform that offers a wide variety of products, including apparel, electronics, and home goods. Founded in 2010, the company is headquartered in Seoul, Seoul-t'ukpyolsi, KOR, with a team of 10001 employees. The company is currently Public Company. Coupang has a track record of offering H1B sponsorships.