Coupang

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Senior Staff / Staff Machine Learning Engineer

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

At Coupang, we invest in providing the best product experience for our customers. The AI and Knowledge Engineering team’s mission is to provide the best possible technical solution to achieve the optimal experience for our customers. We innovate and advance the space of Knowledge Graphs, AI agents, LLMs, AIGC, ML, NLP, CV and multi-modal models.

We are looking for engineers who want to work on cutting edge technology, that is the intersection of Semantic knowledge bases, AI agents, NLP, LLM, AIGC, ML and software engineering. Come join us to help create a world class team advancing the AI/NLP/AIGC/ML/LLM/RL/Knowledge Graph technologies.

What You Will Do

  • Work on GenAI, AI agents' systems to solve complex eCommerce scenarios.
  • Develop large language and vision understanding/generation models for predictive and compound AI Models
  • Train foundational models that can help with building learning systems.
  • Define process and experiments for an E2E foundation model.
  • Build E2E AI pipelines for storing/servicing foundational models.
  • Mentor and guide team members on frameworks, methodologies related to data lakes, data normalization, dimension reduction, visualization, statistical models.
  • Ensure Model training is security, compliance aware.
  • Collaborate with cross-team members to understand the requirements ensuring the foundational models; knowledge captured aligns with the company’s overall AI strategy.

Basic Qualifications

  • 5+ years of demonstrated data science, experience in building large scale foundational models for eCommerce scenarios.
  • Expertise in large language model post-training and deployment.
  • Deep understanding of AI/LLM/AIGC/ML architecture.
  • Strong statistical/mathematical background in defining metrics, learning functions, and result analysis.
  • Significant experience in SQL, Python, PySpark, Scala and R
  • Proficiency in PyTorch/TensorFlow, Spark, BigQuery
  • Proficiency in AI coding Cursor/Windsurf/Claude Code/Codex.
  • Experience creating complex data visualization tools, frameworks, and techniques.
  • Experience in dimension reduction in big data.
  • Proficient in cloud analytical stacks [ Lakes, warehouse, ETL pipelines]
  • Experience with inference platforms in AWS, Azure, and other open-source platforms.
  • Result-oriented, with a bias towards customer obsession, flexibility, and impact.
  • Strong written and verbal communication and teamwork skills
  • Passion for Large language models, NLP, and Machine Learning at scale
  • Education: B.S, M.S in Computer science or Mathematics, or related field

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.
  • 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.

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/

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What this application asks

greenhouse

First Name, Last Name, Email, Phone, Resume/CV, Cover Letter, Location

  • LinkedIn Profile optional
  • Are you a Singapore Citizen or Singapore Permanent Resident? choose one · optional
  • What is your nationality? choose one
  • By submitting your resume, you consent to the required collection and use, required provision, and consignment as set forth in our Privacy Policy(https://privacy.coupang.com/en/land/jobs/). choose one
  • Coupang Corporation or its affiliates and subsidiaries* (collectively referred to as “Coupang”) does not collect or use any personal information other than the types of information specified in this Consent. Please ensure that your resume does not include any personal information other than the types specified in this Consent. choose one
  • Name, contact information, email address, nationality, educational background, work experience, qualifications, national merit status (for special hiring program applicants only), relative’s name/relationship/team and application history are collected and used on an ongoing basis for recruitment purposes and may be provided to any of our affiliates and subsidiaries*, other than the company to which you originally applied, for the purpose of reviewing and conducting recruitment for similar positions. Personal information collected and provided will be retained for the duration of the year-round recruitment retention period defined in the Privacy Policy. You may refuse to provide consent, but such refusal may prevent you from applying. choose one
  • Coupang and its affiliate or subsidiary company* will send recruitment notifications through various forms of communication, such as phone, email, and SMS, using the contact information and email address provided by you with the consent. choose one
  • Recordings of the interview process and transcriptions of interview audio maybe collected and used for the following purposes: i) to record the interview process, ii) to transcribe and document interview audio, iii) to summarize interview results, iv) to verify the interview process and evaluation results, v) to improve the hiring procedures, vi) to check candidate fit for other open positions, vii) to review past interview records. Collected personal information are retained for 4 years from the notification of hiring result, and then deleted. You may refuse to provide this consent, and refusal will not affect the recruitment process. choose one
  • I understand that working with Relatives in the Coupang group of companies (collectively, the "Coupang Group") -- where they can influence each other’s work -- can potentially create conflicts of interest. Therefore, such a situation requires prior approval from the People Operations. In view of the above, I hereby confirm that I DO NOT have any Relatives working in any company within the Coupang Group or serving on the Board of Directors of any company within the Coupang Group; choose one
  • - Name of Relative(s): optional
  • - Relationship: optional
  • - Working Org / Team: optional
  • You have the choice to access, correct/update, delete, suspend the processing, and suspend the transfer of your personal information that Coupang holds. Exercising certain choices, such as deletion of personal information, may result in the restriction of the hiring process. choose one
  • Document Policy choose one

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