Interprets PCI DSS requirements, reviews system and cloud-service security designs, defines project controls, assesses risk, and supports incident response and security governance.
About this role
This Data Scientist role sits in PayPay Card’s Customer Intelligence organization, which uses customer and transaction data to improve products and support business growth in the fintech and payments domain. The position covers business-growth analytics across marketing, product, and business planning, with a focus on connecting data science to user value and business KPIs.
The work spans customer and behavioral analysis, predictive modeling, model development and operation, and the planning, implementation, measurement, and improvement of initiatives. Named technologies include Python, SQL, BigQuery, Google Cloud, LightGBM, XGBoost, CatBoost, scikit-learn, Statsmodels, Prophet, Optuna, SHAP, pandas, NumPy, Vertex AI, Looker Studio, and Vertex AI Pipelines. Projects include acquisition optimization, generative-AI-supported analysis, behavioral prediction, and product-experience optimization.
Applicants need at least three years of practical experience in Python-based data analysis and machine-learning model development, experience developing and operating systems with Google Cloud, and experience taking analysis from business-question design through proposal, implementation, and impact measurement.
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