Senior Staff ML Engineer, Search & Discovery Platform

coupanginternal; Mountain View (WY); On-site; USD 180,000 - 240,000; Full time

Job summary

Coupang is building scalable ML platforms to support ranking and recommendation, handling billions of user interactions and petabytes of data. You will serve complex ML models in real time to improve search and discovery for millions of Coupang customers.

You will work with state-of-the-art techniques such as transformers and vector search, using Spark, Kubeflow, and MLflow to ensure reproducibility and performance in a fast-paced, global environment.

Qualifications

• Bachelor's degree in computer science, electrical engineering, mathematics, statistics or closely related fields.
• 4+ 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.

Responsibilities

• Design features and build large-scale ML models and systems to improve ad targeting, relevance, ranking, and engagement.
• Design and implement large-scale ML systems for search ranking, semantic retrieval, query understanding, and personalized product discovery.
• Drive innovation in search relevance and user intent modeling using LLMs, embeddings, and vector search.
• Build and optimize ML pipelines using Spark, Airflow, Kubeflow, MLflow, ensuring reproducibility and scalability.
• Collaborate cross-functionally with product, engineering, and data science teams to align solutions with business goals.
• Mentor and grow engineering talent and foster a culture of technical excellence.

Skills

Python

Java

Machine learning

Deep learning

Statistical modeling

Education

Bachelor's degree

Master/PhD (preferred)

Tools

Apache Spark

Airflow

Kubeflow

MLflow

TensorFlow

PyTorch

Scikit-learn

Keras

XGBoost

LightGBM

H2O.ai

Job description

Coupang is building scalable ML platforms to support ranking and recommendation, handling billions of user interactions and petabytes of data. You will serve complex ML models in real time to improve search and discovery for millions of Coupang customers.

You will work with state-of-the-art techniques such as transformers and vector search, using Spark, Kubeflow, and MLflow to ensure reproducibility and performance in a fast-paced, global environment.