Senior Staff ML Engineer: Scalable Search & Recs

Coupang; Mountain View (CA); On-site; USD 152,000 - 277,000; Full time

Benefits offered by this job

Medical/Dental/Vision/Life insurance

401K Plan with Company Match

Paid Time Off and Holidays

Parental leave

Job summary

Coupang is seeking a seasoned machine learning engineer to advance search and discovery, handling billions of user interactions and petabytes of data. You will design features and scalable ML systems for ranking, retrieval, and personalized product discovery.

You will work with transformer-based models, vector search, and advanced ML frameworks to deliver real-time recommendations. Join a fast-growing team shaping the future of e-commerce search.

Qualifications

• Bachelor's degree in CS, EE, Math, 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 machine learning 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 using state-of-the-art techniques such as transformer-based models, contrastive learning, and vector search
• Drive innovation in search relevance and user intent modeling using large language models (LLMs), embedding-based retrieval, and multi-modal learning
• Build and optimize ML pipelines using tools such as Apache Spark, Airflow, Kubeflow, and MLflow, ensuring reproducibility, scalability, and operational excellence
• Define and track key performance metrics to evaluate model impact and identify leverage opportunities for improvement
• Collaborate cross-functionally with product, engineering, and data science teams 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

Skills

Machine learning

Python

Java

Production ML

Statistical modeling

Big data processing

Education

Bachelor's degree in CS/EE/Math

Tools

TensorFlow

PyTorch

Scikit-learn

Keras

XGBoost

MLflow

Kubeflow

Weights & Biases

SageMaker

Job description

Coupang is seeking a seasoned machine learning engineer to advance search and discovery, handling billions of user interactions and petabytes of data. You will design features and scalable ML systems for ranking, retrieval, and personalized product discovery.

You will work with transformer-based models, vector search, and advanced ML frameworks to deliver real-time recommendations. Join a fast-growing team shaping the future of e-commerce search.