Senior Staff Applied Scientist

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we 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 Global Operations Optimization Science and Engineering (GOOSE) is an applied science/ML org within the Global Operations Technology (GOT) team at Coupang. The team builds and operates ML/optimization systems across a wide range of business operations, including supply chain, fulfillment, logistics, delivery, commerce risk detection, and post-purchase experiences.   Counterfeit sales on Coupang are distorting market competition, damaging customer trust, creating severe legal vulnerabilities, and ultimately resulting in significant financial damage. Existing enforcement at Coupang is either heavily manual, or imprecise to trust for automated action. To tackle this problem, this role in GOOSE will help our stakeholders in commerce risk detection to build an intelligent and comprehensive counterfeit detection system at scale.   What You Will Do   Design and implement end-to-end ML systems for applications such as Commerce Risk Detection, Post Purchase Experiences, Logistics Compliance, etc. Formulate real-world business problems as ML problems. Expertise on classic ML algorithms, transformer-based models, neural net modes, etc.   Drive innovation in Coupang eCommerce Operations using ML technologies. Drive and own ML vision and roadmap in large/complex projects.    Build and optimize ML pipelines using tools such as Apache Spark, Airflow, Kubeflow, and/or MLflow, ensuring reproducibility, scalability, and operational excellence.   Define and track key performance metrics to evaluate model impact and identify high-leverage opportunities for improvement.   Closely collaborate with product, operations, and back-end engineers to align technical solutions with business goals and customer experience.   Mentor and grow engineering talent, fostering a culture of technical excellence, experimentation and continuous learning   Basic Qualifications   Bachelor's degree in computer science, electrical engineering, mathematics, statistics or closely related fields   8 years of professional experience in applied machine learning   Experience in machine learning, deep learning, and statistical modeling   Proficiency in Python and/or Java, with experience in building production grade ML systems   Preferred Qualifications   Master’s or PhD in relevant technical fields   Domain knowledge in fraud detection, customer support and/or logistics   Excellent communication skills with the ability to explain complex technical concepts to both technical and non-technical stakeholders   Proven ability to lead-cross-functional teams and deliver results in a multicultural, global organization   Demonstrated ability to work independently and manage ambiguity in fast-paced environments   Hands-on experience with modern ML frameworks such as TensorFlow, PyTorch, Scikit-learn, Keras, XGBoost, LightGMB, and/or H2o.ai   Experience with ML lifecycle tools such as Airflow, MLflow, Kubeflow, and/or Amazon SageMaker.   Pay & Benefits   Our compensation reflects the cost of living 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 to $324,000/year. 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   A nnual bonus is 0-20% of the base salary Medical/Dental/Vision/Life, AD&D insurance Flexible Spending Accounts (FSA) & Health Savings Account (HAS) Long-term/Short-term Disability Employee Assistance Program (EAP) program 401K Plan with Company Match 18-21 days of Paid Time Off (PTO) a year based on the tenure 12 Paid Holidays 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 that would be offered to the hired applicant in addition to their established salary 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