Data Scientist【Industry Leading EC Company】

Join a high-impact data science team responsible for developing and optimizing large-scale advertising platforms using machine learning, experimentation, and advanced analytics. This role focuses on building and deploying models for ad performance optimization, pricing strategies, and decision-making systems that operate in real-time, high-traffic environments.

Client Details

A global technology organization operating large-scale digital platforms and advanced advertising solutions powered by data and machine learning. They are committed to innovation in AI, analytics, and optimization technologies, enabling businesses to make smarter, data-driven decisions at scale.

Description

• Develop machine learning models for ad delivery optimization, including CTR/CVR prediction, pricing optimization, and creative performance enhancement.
• Design and execute experiments such as A/B testing and bandit-based optimization to measure, validate, and improve model performance.
• Build and maintain production-ready ML pipelines, monitoring frameworks, and MLOps processes to ensure reliability and scalability.
• Collaborate with product, engineering, and business stakeholders to define requirements, deliver actionable insights, and drive data-driven decision-making.

Job Offer

• Competitive salary
• Free office meal provided
• Work in a multicultural team

To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serina Miyazono on +81 3 6627 6130.

• 3+ years of hands-on experience in data science, machine learning, or advanced analytics using Python, SQL, and modern ML libraries.
• Strong foundation in statistics, experimentation, causal inference, and machine learning model development and evaluation.
• Experience working with large-scale datasets and cloud-based analytics platforms such as BigQuery, Spark, GCP, AWS, or Azure.
• Able to communicate in buisness level Japanese and fluent English