Senior Backend Engineer: Scalable Data Platforms

Coupang; Seattle (WA); On-site; USD 159,000 - 324,000; Full time

Benefits offered by this job

Annual bonus (0-20%)

FSA/HSA

Disability insurance

EAP

401K with company match

PTO 18-21 days per year

Paid holidays

Paid parental leave

Electric car charging station

Job summary

Coupang is seeking a senior backend engineer to build scalable data systems powering our marketplace growth. You will own end-to-end delivery of high‑throughput streaming data pipelines, data models, and platform components, driving performance and reliability at scale.

The role requires leadership across teams, deep expertise in Java and Spring, and a track record delivering complex software systems in cloud environments. Join us to impact Coupang’s seller ecosystem and data-first strategy.

Qualifications

• Bachelor's degree in computer science, electrical engineering, math, or a closely related field.
• 8 years of backend software development experience.
• Proficiency in Java and the Spring Framework.
• Experience working in cloud environments, particularly AWS and building highly available distributed systems.

Responsibilities

• Design, develop, and automate large-scale, high-performance streaming data processing systems to drive business growth and enhance product experiences.
• Build scalable data infrastructure and pipelines using best-in-class software engineering practices.
• Develop optimal data models for storage and retrieval, meeting critical product and business requirements.
• Take full ownership of projects, ensuring high-quality development and operational health.
• Establish and execute short- and long-term architectural roadmaps to meet evolving business needs.
• Drive continuous improvements in data platform efficiency, flexibility, and scalability, while maintaining customer trust, performance, and availability.
• Contribute to shared data engineering tools and standards to enhance productivity and quality across Growth Engineering and Coupang as a whole.
• Functionally decompose complex problems into straightforward, maintainable solutions.
• Provide technical leadership across teams, sharing expertise to increase overall productivity and drive technical excellence.

Skills

Java

Spring Framework

AWS

Distributed systems

Data streaming

Backend development

Problem solving

Leadership

Education

Bachelor's degree in Computer Science, Electrical Engineering, Math

Bachelor's Degree in Computer Science or related field

Tools

Spark

Flink

Kafka

Elasticsearch

Iceberg

ClickHouse

NoSQL

APIs

Spring

Java

Job description

Coupang is seeking a senior backend engineer to build scalable data systems powering our marketplace growth. You will own end-to-end delivery of high‑throughput streaming data pipelines, data models, and platform components, driving performance and reliability at scale.

The role requires leadership across teams, deep expertise in Java and Spring, and a track record delivering complex software systems in cloud environments. Join us to impact Coupang’s seller ecosystem and data-first strategy.