Coupang is hiring a

Sr. Software Engineer - Retail Systems

Seattle, United States

Coupang – Software Engineer 

We are the fastest growing e-commerce company in South Korea, the third largest in Asia Pacific, behind only Japan and China. Recently selected as one of the 50 smartest companies for 2016 by MIT Technology Review, Coupang’s expansion is only getting started.

After closing a single round of funding of $1 billion, we are ready to scale big and expand globally. We have offices in Seoul, Shanghai, Palo Alto, Seattle, and Ontario, CA, and our focus now is on doubling our presence in the U.S.

If you’re looking for an opportunity to join a smart and innovative company, with the ability to have a direct impact on the systems and processes put in place, and gain a holistic 360 view of the business as a whole, Coupang is the company for you.

About the role: 

The Retail Systems team is responsible for creating systems that allow our product vendors and third party sellers to list and manage their products on Coupang.  As the backbone of Coupang, our mission is to create highly scalable systems that empower our vendors and third party sellers to grow and manage their Coupang businesses online and through mobile platforms.  Coupang is a global company and our systems must enable global scale.  Our Retail Systems team is your opportunity to see if you have what it takes to create a new global retailer.  We have big goals at Coupang and the Retail Systems team is at the center of it all!

You’ll get to work with the best in the industry, with many of our team members coming from Amazon, eBay, PayPal, Facebook and more! You’ll work in a collaborative, dynamic, entrepreneurial and open environment where we consider ourselves a family (Check out our Family Day!). And our agile environment will enable you to rapidly innovate with the most cutting edge technologies.

What you’ll do:

You’ll be faced with unique challenges to scale and develop solutions including software platforms and applications that drive demand generation, customer acquisition, and seller integration.  We aim to grow to more than 55M+ users in Korea alone. You’ll also get to push the envelope of what’s possible with mobile commerce (currently over 75% of our sales are done on mobile)!

Some specific things you’ll work on:

  • Highly Scalable and Reliable services oriented architecture
  • Design, develop and support world-class systems serving individuals and business of all sizes
  • Drive and work on algorithm and architecture design, execute and deliver results
  • Big Data Analytics supporting data collection, modeling, and optimization
  • Work directly with machine learning scientists to scale up models on retail purchases, vendors, and other Coupang data to deeply understand our customers
  • Strategic domains such as mobile payments, pricing, search, personalization, and supply chain management.
  • Consumer driven web and native mobile interfaces and APIs.  

What we’re looking for:

  • Bachelors or above degree in Computer Science or related fields
  • 3+ years of experience with Java, SQL, Javascript, and ideally some Python
  • Good programming practices including solid object-oriented principles and design patterns
  • Experience in web and mobile technologies, such as AngularJS, Android, and HTML5.
  • Platform knowledge including MySQL, Hadoop, Spring, NodeJS, Git
  • Ability to deep dive into software requirements and to focus on delivering results
  • Maintain a sense of ownership and urgency across all responsible projects

Bonus points for:

  • Exposure in dynamic startup or startup like environments preferred
  • Experience in Cloud services such as Amazon Web Services (AWS) and/or Microsoft Azure
  • Major bonus points for experience at e-commerce or SaaS companies!
  • Ability to think outside-the-box and challenge conventional wisdoms
  • Experience with handling large data volumes in a Java server environment – ideally with both backend processing and web tier data management


  • Autonomy to make decisions in a rapidly growing company
  • Free medical, dental, and vision insurance
  • 15 days PTO + 15 national holidays off
  • 401K matching
  • Pre-IPO stock options
  • Mobile & fitness reimbursement
  • Flexible working hours 

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