Remote

Data Engineer, Credit Modeling

Remote OK - Anywhere in Japan
Full-time
July 18, 2025

PayPay is looking for a Data Engineer for the Credit Modeling team to conceptualize, design and implement improvements to ETL processes and data through independent communication with data-savvy stakeholders.

Responsibilities

Design, build, and maintain distributed batch and real-time data pipelines and data models.
Facilitate real-life actionable use cases leveraging our data with a user- and product-oriented mindset.
Be curious and eager to work across a variety of engineering specialties (i.e., Data Science, and Machine Learning to name a few).
Support teams without data engineers with building decentralized data solutions and product integrations, for example around DynamoDB.
Enforce privacy and security standards by design.

Qualifications

+3 years experience building complex data pipelines and working with both technical and business stakeholders.
Experience in at least one primary language (e.g., Java, Scala, Python) and SQL (any variant).
Experience with technologies like BigQuery, Spark, AWS Redshift, Kafka, or Kinesis streaming.
Experience creating and maintaining ETL processes.
Experience designing, building, and operating a DataLake or Data Warehouse.
Experience with DBMS and SQL tuning.
Strong fundamentals in big data and machine learning.

Preferred Qualifications

Experience with RESTful APIs, Pub/Sub Systems, or Database Clients.
Experience with analytics and defining metrics.
Experience with measuring data quality.
Experience productionalizing a machine learning workflow; MLOps
Experience in one or more machine learning frameworks, including but not limited to scikit-learn, Tensorflow, PyTorch and H2O.
Language ability in Japanese and English is a plus (We have a professional translator but it is nice to have language skills).
Experience with AWS services.
Experience with microservices.
Knowledge of Data Security and Privacy.
Bilingual Japanese-English

APPLY NOW ➜

About PayPay

PayPay is a FinTech company that has grown to over 75M (as of August 2026) users since its launch in 2018. Our team is hugely diverse with members from over 50 different countries.

PayPay dares to believe that they do not need a clear vision to create a future beyond our imagination. PayPay will always stay true to their roots and realize a vision (future) that no one else can imagine by constantly taking risks and challenging themselves. With this mindset, you will be presented with new and exciting opportunities on a daily basis and have the opportunity to grow and reach new dimensions that you could never have imagined. PayPay is looking for people who can embrace this challenge, refresh the product at breakneck speed and promote PayPay with professionalism and passion.

Japanese Language Policy
At PayPay, there is a mixture of Japanese and English spoken. Around 80% of their product team’s discussions happen in English, and they have technical interpreters and translators on staff to facilitate any translation necessary. Some members can speak both English and Japanese, but some can only speak either English or Japanese.

PayPay doesn’t have an official shared language, but in practice English tends to be the primary language used for internal communications and technical discussions like code reviews.

Instead of requiring that everyone be able to speak a specific language, PayPay expects an ability to communicate with mutual respect and a drive to ensure that you’re understood. The product team values proactive communication highly.
Visa Sponsorship
PayPay sponsors visas for applicants from overseas.
Paid Leave
- Days Off: Saturdays and Sundays. National holidays. Year-end and New Year holidays.
- Holidays: Annual paid leave, congratulatory or condolence leave, maternity leave and etc.
Benefits
🌎 Translation/interpretation support (EN<>JP)

🧡 Support for translation or other administrative tasks in Japanese

👍 Support from bilingual PIC for engineers

🇯🇵 Free Japanese lessons on company time

💻 PC and phone are given (based on the company’s regulations)

👩‍🎓 Training Program: We have various training programs for different kinds of needs

💜 Social security/insurance benefits included

💛 Defined contribution pension system (TBC)

🏥 Health insurance

🚃 Transportation coverage (up to ¥150,000/mo)
Engineer Interview Process
PayPay's Hiring process are as below:
- Application Review (English CV is required)
- Coding Test or Take Home Assignment (only applied to required positions)
- 3-4 Interviews (including both technical and behavioral interviews)
- Offer Meeting
Remote Work
Hybrid Workstyle (flexible working style including Remote and office)

※ You will be expected to work both in the office and remotely, in alignment with organizational guidelines and team objectives.
Work style
- Super Flex Time with no core time
- In principle, from 9:00am-5:45pm (actual working hours: 7h45m + 1h break)