CareerPlan

Data Scientist - Data Intelligence Department, System Division, Rakuten Card Co., Ltd. (Secondment)

Tokyo, JapanFull-time2026-10-15 → 2026-11-10

Core

Build data pipelines, data warehouses, and analytics environments to unlock data value for Rakuten Card's payment and credit card services.

Role type

data engineer (data intelligence)

Builds

data pipelines, data warehouses, integrated analytics environments (BI tools), and new revenue-generating services

Domain

fintech, credit card payments, data infrastructure

Deliverable

infrastructure

Required skills

Python, Java, machine learning frameworks (TensorFlow, scikit-learn, Pytorch, Keras), SQL, relational databases, Linux, data collection requirements definition

Preferred skills

data science methods (regression, decision trees, clustering), NLP with neural networks, big data tools (Spark, Parquet, Hive, Impala, Kafka), AI infrastructure (cloud, Kubernetes), data warehouse/BI analysis, large-scale transaction system development