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Staff Ranking Engineer - Recommendations

근무지 Mountain View, USA
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Company Introduction

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 entrepreneurial 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

As our Staff Machine Learning Engineer for Recommendations, you will be responsible for developing, designing the new features and improve existing features for many product areas we own. 

Recommendation team is responsible for Coupang’s related product recommendation, personalized gateway, widget ranking, and product review quality. Related product recommendation is a fast-growing area and we are continuously improving recommendation quality to help more and more customers find the best products for them. We have also started investing in personalized Gateway, aiming to build one of the best e-commerce discovery experiences. We use the state of the art Machine Learning and Deep Learning technologies, and we continuously innovate and build highly scalable systems to support the growing business and customer engagement.

What you will do

  • Develop new Machine Learning models and features to create new recommendation algorithm or improve existing algorithms
  • Mine vast amount of data to gain insights from customer behavior
  • Create data jobs to generate Machine Learning features; build and train new models; run experiments to validate and launch new models
  • Responsible for the production system running Machine Learning models
  • Own the full practical Machine Learning process end to end

Qualifications

  • 5+ years experience working with large-scale, complex datasets to create and optimize machine learning models
  • Track record of diving into data to discover hidden patterns and solving problems with data science
  • Fast paced self-learner with proven record of launching successful features and improving business metrics
  • Write robust and efficient code using Java, Python etc with unit and integration tests
  • Understand production environment, continuous build, monitoring and alerting. Able to dive deep to debug and resolve usual production issues. 
  • Practical understanding and hands-on experience with supervised learning methods (linear and logistic regression, generalized linear models, decision trees, random forests, support vector machines, neural networks / deep learning, etc.) and unsupervised learning methods (K-means, hierarchical clustering)
  • Master degree in Computer Science, Mathematics or related science majors, Ph.D. strongly preferred

Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to actual or perceived race (including traits historically associated with race, including but not limited to hair texture and protective hairstyles), color, religion, religious creed (including religious dress and grooming practices), sex or gender (including pregnancy, childbirth, breastfeeding, and medical conditions related to pregnancy, childbirth or breastfeeding), gender identity, gender expression, sexual orientation, ancestry, national origin (including language use restrictions), age (40 and over), physical or mental disability, medical condition, genetic information, HIV/AIDS or Hepatitis C status, family status (including but not limited to marital or domestic partnership status), military or veteran status, use of a trained dog guide or service animal, political activities or affiliations, ancestry, citizenship, family and medical leave status, status as a victim of any violent crime, or any other characteristic or class protected by the laws or regulations in the locations where we operate. Coupang is also committed to providing a safe work environment for its employees and consumers. As a condition of employment, Coupang requires employees to be fully vaccinated against Covid-19, subject to legally required accommodations.  If you need assistance and reasonable accommodation in the application of recruiting process due to a disability, please get in touch with us at usrecruiting@coupang.com .


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