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. 


Job Overview:

The Coupang Media Group (CMG) is responsible for providing vendors that sell their products on Coupang a host of marketing products and services. We launched Product Ads which is a bidded performance advertising marketplace late in 2018. We have grown rapidly in the past year with 100% quarter over quarter growth. Business growth will accelerate into 2020 and we are building the team to get us there.

You will be responsible for designing and testing solutions for Coupang’s advertising platform. You must be self-motivated, result-oriented with strong programming and testing skills and experience, and have experience using best-of-breed tools, technologies, and practice.



  • Proven track record of taking ownership and successfully delivering results
  • Ability to clearly and concisely communicate with technical and non-technical stakeholders across all levels of the organization
  • Ability to deal with ambiguity in business and technology
  • Ability to work in a multi-cultural, cross-functional team


Key Responsibilities: 

  • Translate the desired business outcome to technical solutions that meet operational and business needs
  • Translate requirements and guidelines to test scenarios, cases, and strategies.
  • Automate test process and test automation tools and frameworks
  • Implement unit, regression, integration, performance, security, and acceptance tests
  • Bring solutions to the organization and improve the value proposition and efficiency of the overall platform
  • Participate in all level of product design and work with product owners, product development team, and end product user
  • Have knowledge of and ability to teach and mentor other engineers



  • BA/BS degree in Computer Science/Engineering or related fields
  • Experience of 5+ years as a SDET
  • Strong understanding of Web-based product and API development
  • Exposure to various testing methodologies and the complete software development process, not just the testing life cycle
  • Proficiency in JavaScript and at least one another programming language such as Java, C#, and Python



  • Experience in the advertising and/or eCommerce domains
  • Strong knowledge of database systems, data warehousing concepts
  • Highly scalable cloud-based software and deployments
  • Proficiency in web services / API design
  • Experience in agile software development
  • Exposure to behavior driven development
  • GUI testing / Cross-browser testing
  • Testing suits and frameworks – Zephyr, TestPad, MS Test, NUnit, TestNG, Selenium WebDriver, SilkTest, etc.
  • Related experiences with using Kafka, Redis, Hive, Hadoop, Spark
  • Have a broad knowledge of Amazon Web Services, Distributed systems, Service-oriented / Message-oriented architecture
  • Proficiency in SQL and/or NoSQL


Recruitment Process and Others

1. Recruitment Process: Application Review - Phone Interview - Onsite Interview - Offer  
(The recruitment process may be different depending on the job and may be changed due to scheduling and circumstances.)
2. Others:
a. This job post may be closed early if all openings are filled.   
b. If there is any false information in the application, the offer may be cancelled.
c. Veteran status or disability will not result in any disadvantages in the recruitment process.
d. Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

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