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Coupang

Senior Staff Backend Engineer

Sorry, this job was removed at 08:14 p.m. (PST) on Wednesday, Sep 03, 2025
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In-Office
Seattle, WA
In-Office
Seattle, WA

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We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce.


We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.

Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.


Role Overview

The Coupang Corner Stone team in tech infrastructure organization, takes charge of company-wide transaction data storage and common data service layer to materialize e-commerce data for low latency reading. The team manages two statefull critical services – UUID generator and data materialization service, and eight storage services including five self-host databases like Cassandra, Elastic Search, MySQL, Vitess and Clickhouse, and three AWS managed services like Aurora, DynamoDB and DocumentDB.

We are looking for a technical leader for the team to oversee the 10 critical services and build the next generation of transactional data storage as a service solution. You are the leader in driving across teams’ tech initiatives and leading engineers to deliver the results. You can proactively identify the system issues, propose solutions, and socialize ideas with stakeholders. You can resolve challenging technical issues and build consensus on the direction and solution. You follow the latest technology and introduce the best industry practice to the company.


What you will do:

  • Lead the technical new initiatives and work with partner teams to deliver results.
  • Define the technical direction and work with the leadership team to build the roadmap.
  • Identify the system reliability and performance issues and propose solutions applying best industry practice.
  • Lead the challenging incident investigation and represent the team in the incident war room.
  • Collaborate with other Coupang tech teams to make the service extensible to support business growth
  • Drive communication up to Principal Engineer and VP level.
  • Advocate engineer excellence and operation excellence with the team
  • Hire and develop team members with knowledge sharing and high-quality interviews.

Minimum Qualifications:

  • Bachelor’s degree in computer science, or related areas
  • 8 years experience on software design & development 
  • Distributed system and experience developing large scale enterprise

Preferred Qualifications:

  • Deep understanding of Kubernetes, database and storage technologies
  • Deep understanding of service availability, scalability, latency, monitoring and operation.
  • Have experience of infrastructure and technical platform work
  • Have experience of driving across team tech initiatives and new customer migration.
  • Strong System design, hand on coding and debugging skills
  • Familiar with AWS technology
  • Excellent communication skills in English including verbal and written
  • At least 10+ years working experience on software design & development experience

Pay & Benefits

Our compensation reflects the cost of labor across several US geographic markets. At Coupang, your base pay is one part of your total compensation.

The base pay for this position ranges from $159,000/year in our lowest geographic market to $324,000/year in our highest geographic market. Pay is based on several factors, including market location, and may vary depending on job-related knowledge, skills, and experience.

General Description of All Benefits

  • Medical/Dental/Vision/Life, AD&D insurance
  • Flexible Spending Accounts (FSA) & Health Savings Account (HSA)
  • Long-term/Short-term Disability
  • Employee Assistance Program (EAP) program
  • 401K Plan with Company Match
  • 18-21 days of the Paid Time Off (PTO) a year based on the tenure
  • 12 Paid Holidays
  • XX weeks of Paid Parental leave
  • Pre-tax commuter benefits
  • MTV - [Free] Electric Car Charging Station

General Description of Other Compensation

“Other Compensation” includes, but is not limited to, bonuses, equity, or other forms of compensation offered to the hired applicant in addition to their established salary range or wage scale.


Recruitment Process and Others

Recruitment Process 

  • Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
  • The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
  • Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

Details to Consider

  • This job posting may be closed prior to the stated end date for application if all openings are filled.
  • Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
  • Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.

Privacy Notice​

  • Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/​

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, or 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 reasonable accommodation in the recruiting process due to a disability, please contact us at [email protected]

Requisition Job ID: R0056591

Coupang Seattle, Washington, USA Office

720 Olive Wy, Seattle, WA, United States, 98101

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

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  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute

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