C

Coupang

Sells goods online with its own overnight delivery

Staff Backend Engineer - Fintech Data Platform

Backend EngineeringPosted on Nov 12
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree or higher in Computer Engineering, Software Engineering, or a related technical field.
  • At least 5 years of experience designing and building backend software systems.
  • Strong understanding and proficiency in Java and object-oriented design principles.
  • Practical experience with Spring Boot and modern backend frameworks.
  • Experience building RESTful APIs and microservices architectures.
  • Deep understanding of distributed-system principles, including scaling, fault tolerance, consistency, caching, and reliability.
  • Experience with relational databases and/or NoSQL databases.
  • Strong problem-solving and debugging ability in production environments.
  • Ability to communicate and collaborate effectively.

Responsibilities

  • Design and develop scalable backend services using Java and Spring-based technologies.
  • Build highly available and fault-tolerant distributed systems supporting core payment and financial services.
  • Design APIs, data models, and service architectures that scale efficiently with business growth.
  • Develop and optimize data-intensive applications that handle large transaction and analytics workloads.
  • Improve system performance, observability, resilience, and operational excellence.
  • Collaborate with cross-functional teams to implement business requirements as technical solutions.
  • Lead architecture design reviews across multiple services and domains and participate in technical decision-making.
  • Resolve complex production issues and continuously improve system reliability and maintainability.
  • Mentor engineers and promote software engineering best practices within the team.
  • Contribute to cloud-native engineering standards and platform capabilities.

Desired Qualifications

  • Experience building large-scale cloud-native applications on AWS.
  • Experience with container technologies such as Docker and Kubernetes.
  • Experience building event-driven architectures using messaging platforms such as Kafka.
  • Understanding of and experience with distributed data systems such as DynamoDB, Cassandra, and Redis.
  • Experience designing systems for high throughput, low latency, and high-traffic environments.
  • Practical experience with observability platforms, monitoring, alerting, and Site Reliability Engineering.
  • Experience building platform services, data platforms, or infrastructure services.
  • Experience working in high-volume transaction environments such as fintech, payments, or e-commerce.
  • Understanding of Agile software development methodologies.

About the Company

Coupang

Sells goods online with its own overnight delivery

Coupang runs one of South Korea's largest online stores, selling groceries, electronics, household goods and fashion to consumers and small businesses. Rather than relying on outside carriers, it delivers most orders through its own warehouses and drivers, and its Rocket Delivery service brings millions of items to doorsteps overnight or the same day. Shoppers order through the Coupang app or website, and the company earns money from its own retail sales, commissions and fulfillment fees from outside sellers, and a paid membership. Coupang was founded in Seoul in 2010 and is headquartered in Seattle, with most of its operations and staff in South Korea.

Company size
10,001+
Company stage
IPO
Headquarters
Seattle, WA
Founded
2010

Recently Posted Jobs

Explore more opportunities at Coupang

See more jobs