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Senior Software Engineer (Retail Systems)

Seattle, Washington Job ID: 2170731


We are looking for people who are passionate about solving complex real-world problems, building world-class solutions, and benefitting millions of lives. At Coupang, developers learn from one another—we share knowledge and spur each other on to come up with great ideas—and move extremely fast to create profound impact together. You will also have the opportunity to tackle large-scale challenges that arise as we grow. This includes building in-house technology, innovating mobile architecture, and advancing possibilities with machine learning and deep learning. With you, we will build a world where our customers ask, “How did we ever live without Coupang?”

Success Profile

  • Team Player
  • Adaptable
  • Inventive
  • Self-starter
  • Problem Solver
  • Goal-oriented
  • Quick-thinking


Job ID 2170731 Date posted  04/23/2020 Location Seattle, United States

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?”

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.

• 4+ years of experience with Java, SQL, Javascript, and ideally some Python
• 2+ years of web development experience.
• 2+ years HTML CSS/SCSS, Bootstrap, HTML5 experience.
• Good programming practices including solid object-oriented principles and design patterns
• 2+ years experience with JavaScript UI libraries such as React js, Angular js
• 2+ years experience writing and maintaining JavaScript tests (eg. Jasmine, Mocha, Karma).
• 1+ years experience with responsive design concepts/practices
• Strong understanding with RESTful JSON API design and integration
• 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

Preferred Qualifications
• Experience with agile software development methodology and continuous delivery models
• Experience with Design Patterns, Test Driven Development (TDD) and performance engineering
• Experience with team building and mentoring
• Experience with architecting and coding for cloud-based applications (e.g., AWS, Azure etc.)

Bonus Points For
• Exposure in dynamic startup or startup like environments preferred
• 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
• 18 days PTO + 12 national holidays off
• 401K matching
• Pre-IPO stock options
• Mobile & fitness reimbursement
• Flexible working hours

Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate.

If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at

Career Path

  • Senior Software Engineer
  • Software Engineering Manager
  • Technical Program Manager
  • Product Manager (Product Owner)
  • Tech Recruiter


Benefits and Rewards

  • Flex Time

  • Open Culture

  • Team Outings

  • Collaboration

  • International Interaction

Our mission is global

Coupang is a global business with offices in Seoul, Shanghai, Beijing, Silicon Valley, Seattle and Los Angeles.

Seoul, Korea

Our Korea office is located in downtown Seoul near Lotte World Hotel and Lotte World Mall.

Shanghai, China

Our office in Shanghai is conveniently situated near to restaurants and gyms, as well as to the Evergreen Hotel and the Chamtime Square Shopping Mall.

Beijing, China

Our Beijing office is located in One Indigo, a Grade A-listed office tower. From our space on the 12th floor, you can take in expansive views of Indigo Park, the Ba River and the Beijing skyline. We are conveniently situated a few steps away from the Indigo Shopping Mall, and parking is easily available.

Mountain View, United States

Our Mountain View office is located in the Silicon Valley area across from the NASA Ames Research and Visitor Center.

Seattle, United States

Our Seattle office can be found in the heart of downtown Seattle near restaurants and tourist attractions such as the Pike Place Market.

Los Angeles, United States

Our office in Los Angeles is located in the Riverside area right next to the Sycamore Canyon Wilderness Park.

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