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. 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 Coupang Pay is seeking a Staff Data Scientist to help safeguard our customers and payment ecosystem from fraud, account takeover, payment abuse, and emerging financial crime threats. This is a high-impact role for a strategic, data-driven fraud owner who is passionate about solving complex risk challenges and delivering measurable business impact. The ideal candidate combines deep fraud expertise, analytical rigor, intellectual curiosity, and a builder's mindset to develop scalable, technology-driven solutions with minimal customer friction. This is a unique opportunity to shape the future of fraud prevention at Coupang Pay and build industry-leading risk capabilities at scale. Key Responsibilities • Lead Coupang Pay's fraud strategy by identifying emerging risks and developing scalable prevention and detection solutions across the payment lifecycle. • Design, implement, and optimize fraud controls, decisioning strategies, and risk policies to reduce fraud losses while maximizing payment approval rates and customer experience. • Analyze large-scale transaction, behavioral, and fraud datasets to identify emerging attack patterns, vulnerabilities, and opportunities for risk mitigation. • Partner with Product, Engineering, Data Science, Fraud Operations, and Compliance teams to translate insights into production-ready rules, models, and fraud prevention capabilities. • Evaluate and leverage machine learning, AI, graph analytics, and other advanced technologies to enhance fraud detection, investigation, and operational efficiency. • Assess fraud risks associated with new products, payment methods, and business initiatives, and recommend appropriate risk controls. • Monitor fraud performance metrics and key business outcomes, driving continuous improvements through experimentation, analysis, and data-driven decision making. • Lead root-cause analyses of significant fraud incidents and provide strategic recommendations to strengthen Coupang Pay's fraud defenses. • Communicate fraud trends, risks, business impacts, and strategic priorities to leadership and cross-functional stakeholders. Basic Qualifications • 8+ years of experience in fraud strategy, fraud risk management, fraud analytics, payments risk, or related fields. • Experience leading fraud strategy initiatives in e-commerce, payments, fintech, card, or financial services environments. • Strong analytical, problem-solving, and technical skills, with the ability to leverage large- scale data, machine learning, and real-time decisioning systems to develop scalable fraud prevention solutions and drive business impact. • Experience developing, implementing, and optimizing fraud prevention and detection strategies. • Proven ability to influence stakeholders and drive cross-functional initiatives across Product, Engineering, Data Science, Fraud Operations, and Compliance organizations. • Professional proficiency in English with excellent verbal and written communication skills. • Bachelor's degree in Computer Science, Data Science, Statistics, Mathematics, Engineering, or a related quantitative field; advanced degree preferred. Preferred Qualifications • Experience applying advanced fraud techniques, including graph analytics, device intelligence, behavioral analytics, identity risk assessment, account takeover detection, AI/LLMs, or intelligent automation. • Hands-on experience with data analysis and programming tools such as Python, SQL, HIVE, or similar large-scale analytics platforms. • Proven track record of optimizing fraud prevention strategies while balancing fraud loss, payment approval rates, customer experience, and business growth objectives. • Experience building and scaling fraud capabilities in large, high-growth, data-driven organizations. • Experience with card payments, issuer/acquirer risk management, chargeback management, or broader payment fraud ecosystems. Recruitment Process and Others Recruitment Process • Application Review - 1st Interview - 2nd 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. • 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 Privacy Notice • Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. • https://privacy.coupang.com/en/land/jobs/ 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.