Staff, Machine Learning Engineer (Eats Search & Discovery)

Company: Coupang

Job Title: Staff, Machine Learning Engineer (Eats Search & Discovery)

Coupang Eats is an innovative service by Coupang that delivers high-quality food and beverages from local restaurants and cafes directly to your doorstep. Our goal within the customer app is to help you discover the best food options tailored to your needs.

As part of the Search & Discovery organization, we are committed to:

• Delivering infallible search experiences that retrieve and rank the most relevant stores for user queries
• Offering personalized restaurant discovery through tailored category browsing and recommendation content
• Enhancing the customer search journey with features like spelling correction, autocomplete, and suggested queries

These experiences are underpinned by a comprehensive ecosystem, including cutting-edge ranking models, relevance models, scalable data processing systems, and flexible online ranking frameworks.

As a Staff Machine Learning Engineer, you'll join a team of 8 engineers to innovate and enhance the search and discovery experience for Coupang Eats. You will be responsible for the design, development, and maintenance of the end-to-end Search ecosystem, including:

• Our online ranking system
• Data pipelines that produce candidates and features for our ranking logics
• Relevance and conversion modeling

In a controlled environment, you'll run experiments to validate and launch features that improve customer experience.

• Own and enhance the Search service, the backbone of Coupang Eats, to continually wow customers
• Collaborate with Silicon Valley eCommerce teams to share knowledge and integrate the latest techniques
• Analyze vast amounts of data to gain insights into customer behavior
• Develop new Machine Learning models and features to create or improve recommendation algorithms
• Create data jobs to generate Machine Learning features, build and train new models, and run experiments for validation and launch
• Mentor and grow engineering talent within the team

Required:

• Master's degree in Computer Science, Mathematics, or related scientific fields
• 4+ years of experience working with large-scale, complex datasets
• Proven track record of discovering hidden patterns in data and solving problems with data science
• Self-learner with a history of launching successful features and improving business metrics
• Strong communication skills

Preferred:

• Professional Korean proficiency
• Ph.D. degree in Computer Science, Mathematics, or related fields
• Experience with LLMs or modern NLP models
• Experience as a ranking engineer in a fast-paced environment
• Industrial experience working with large-scale online serving systems
• Proven ability to write robust, efficient code using Java with unit and integration tests
• Excellent communication skills, growth mindset, and a can-do attitude

Join us at Coupang to be part of a team that is revolutionizing the food delivery industry!