Coupang is one of the largest and fastest growing e-commerce platforms on the planet. We are on a mission to revolutionize everyday lives for our customers, employees and partners. We solve problems no one has solved before to create a world where people ask, “How did we ever live without Coupang?” Coupang is a global company with offices in Beijing, Los Angeles, Seattle, Seoul, Shanghai, and Silicon Valley. 



 Coupang eCommerce Fraud Detection team is dedicated in making Coupang’s business fraud free.We are seeking a talented, enthusiastic and technology-proficient engineer, who is eager to participate in design and implementation of a large-scale, highly efficient data platform, batch and real-time pipelines and tools. You will work closely with our engineers and data scientists to protect Coupang’s business from fraud. Join us, you will have deep insight into customer data on big eCommerce platform. You will build the fraud detection service with cutting edge big data technologies.


Key Responsibilities:  

  • Design and implementation of durable & efficient software solutions that handles massive amount of structured and unstructured data
  • Develop and scale data infrastructure that powers batch and real-time data processing
  • Build strong cross-functional partnerships with Data Scientists, Analysts, Product Managers ,Software Engineers and Operators to understand data needs and deliver on those needs
  • Research, analyze and select technical approaches for solving difficult and challenging development and integration problems
  • Coach and mentor other engineers in process and methodologies





  • Bachelor or advanced degree in Computer Science or Engineering, information systems or related technical field.
  • 5+ years software development experiences, rich experince in Java related technologies
  • Strong fundamentals in object-oriented design, data structures, algorithm, problem solving and complexity analysis
  • Solid experience with handling large data volumes in a distributed environment and web data management
  • Deep knowledge of RDBMS (MySQL, PostgreSQL, SQL Server) and NoSQL databases such as Elasticsearch, HBase, Redis
  • Experience with big data ecosystem (Hadoop,Cloudera,Oozie, Hive,Zookeeper,etc.) and stream processing (Kafka, Spark, Flink)
  • Good communication skill and presentation skill



  • Experience in building complex software systems that have been successfully delivered to customers
  • Experience in development of Petabyte-Scale NoSQL database and Messaging Platform
  • Willing to take a leading role, dare to face greater challenges and assume greater responsibility

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