Senior Staff Data Scientist
- Level
- Staff
Not stated in the posting: salary, work type, visa.
Open. First seen 12 October 2026.
About the role
Company Introduction
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 are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce.
Coupang's standard text
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 Search and Discovery team is responsible for creating a world class search and discovery shopping experience for our customers, from “intent” based shopping to delighting the customer with serendipitous product discovery on every visit.
We are obsessed with optimizing the entire search customer journey, from query understanding and search relevance to personalized and category/mission aware search and recommendation experiences. We believe the experience of finding the right fresh groceries should be personal and different from shopping for a new laptop or your next pair of jeans. Search and Recommendations drive over 70% of product discovery for our millions of daily customers, so the scale and impact of our work is massive!
As a Senior Staff Data Scientist, you will leverage data, experimentation, and analytics to understand customer behavior and drive improvements across search relevance, recommendations, and discovery experiences. You will partner closely with cross-functional teams to identify opportunities, measure impact, and help optimize the search journey for millions of Coupang customers.
Key Responsibilities
- Own the Data Science function within a core pillar of Search and Discovery org
- Analyze how customers interact with Coupang’s search results to determine how to improve customer experience and business performance
- Lead experiment ideation, design, measurement, and interpretation
- Build datasets to increase the speed and accuracy with which the team analyzes data
- Understand the nuances of ML ranking models, LLMs, and more to determine how our core search product can be optimized
Basic Qualifications
- 10+ years experience as a data scientist/analyst in customer-facing technology companies
- Expertise in experimentation and statistics
- Strong coding skills, including SQL and R/Python
- Experience with massive datasets, with an understanding of how to optimize data extraction
- Ability to communicate data concepts simply and succinctly to cross-functional team members, up to the C-suite
- Understanding of ML concepts, and how different model configurations affect model outcomes
- English fluency
Preferred Qualifications
- Experience in e-commerce and/or search
- Mandarin fluency
Recruitment Process and Others
Recruitment Process
- Application Review - Job Fit Interview - Focus 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.
- Job titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer.
- Hiring may be restricted in case the legal qualifications required for hiring and work performance is not met.
- (Recruiter Note: add in the case of full-time regulars) This is a full-time regular position and includes 12 weeks of probation period; provided, however, the probationary period may be either skipped, shortened or extended if necessary for business purposes.
- (Recruiter Note: add if probation period is applicable, for example in the case of contract position of 3 months or longer) This is a contract position and includes 12 weeks of probation period; provided, however, the probationary period may be either skipped, shortened or extended if necessary for business purposes.
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/en/privacy-policy
Document Return Policy
- This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.
- A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.
- A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit It by email (recruitingops@coupang.com). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.
- In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.
- The above paragraphs 1 - 4 shall only apply when the labor-related laws of Korea govern the application. They are otherwise not applicable.
What this role asks for
Standard for data science / ML roles
LLM · Machine Learning · Python · SQL
Common in data science / ML postings at any company.
88% of this description is written for the role. The rest is Coupang's standard text, folded away below.
Read against Coupang's other open postings on this site.
The team: Search and Discovery HIRES STEADILY
This role is one of 15 open in Search and Discovery. 2 were posted in the last 30 days and the oldest in April: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
LLM (11 of 15), Machine Learning (11 of 15), Python (10 of 15), Java (8 of 15), Deep Learning (7 of 15), AWS (5 of 15), GCP (5 of 15)
OTHER ROLES ON THIS TEAM
- Staff Computer Vision Engineer - Search AI Product Engineering posted Sep 22
- Staff ML Engineer – Search & Discovery Relevance posted Sep 14
- Senior Staff ll, Machine Learning Engineer - Search Relevance posted Sep 10
- Sr.Director, Data Science & Data Engineering posted Aug 31
- Staff Data Engineer posted Aug 26
- Staff Backend Engineer – Search and Discovery Product Engineering posted Aug 24
- Staff, Machine Learning Engineer (Search & Discovery) posted Aug 18
- Sr. Staff, Machine Learning Engineer (Search & Discovery) posted Aug 18
- Staff Machine Learning Engineer, Personalization posted Jul 31
- Staff Data Scientist - Search and Discovery posted Jun 30
- Senior Staff Ranking Engineer, Personalization posted Jun 3
- Staff Machine Learning Engineer, Search & Discovery posted May 15
- Senior Staff ll, AI Engineer (L7-2) posted Apr 29
- Principal, Machine Learning Engineer posted Apr 23
From the team and dates on Coupang's own job board.
Other openings for this role
2 open postings for this role in Seoul, South Korea, first posted 3 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.
- 12 October 2026 – open (this posting)
- 3 October 2026 – open
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