Senior Staff Data Scientist - Coupang

Key Responsibilities

• Design, develop, and productionize large‑scale machine learning and deep learning models to improve recommendation, pricing, and logistics systems.
• Lead end‑to‑end experimentation pipelines, including A/B test design, statistical analysis, and result interpretation to guide product strategy.
• Collaborate with engineering, product, and business stakeholders to translate business problems into data‑driven solutions and define key performance metrics.
• Mentor and coach a growing team of data scientists and analysts, fostering best practices in model development, code quality, and reproducibility.
• Optimize data pipelines and analytics workflows on big‑data platforms (e.g., Spark, Hadoop) and cloud services such as AWS.

Requirements

• 5+ years of hands‑on experience building and deploying machine learning models in production, preferably in e‑commerce or large‑scale consumer platforms.
• Strong programming skills in Python and SQL, with experience in libraries such as TensorFlow, PyTorch, scikit‑learn, and Spark.
• Deep understanding of statistical methods, experimental design, and A/B testing.
• Proven ability to work with big data technologies and cloud environments (AWS, S3, EMR, SageMaker).
• Excellent communication skills and a track record of influencing cross‑functional teams with data‑driven insights.