About PayPay

Toranomon, Tokyo

With over 47 million registered users (as of May 2022), PayPay is the country’s most popular mobile wallet. Half of all of Japan's smartphone users are using it, and more than 2 billion payments made per year.

Key benefits

  • International engineering team
  • Japanese lessons on company time
  • Incredible scale

About the position

PayPay is looking for a Data Engineer to work on our payment system to deliver the best payment experience for our Japanese customers.

Our ideal candidate is an problem solver and a learner at heart. You should have a very high degree of comfort in a programming language of your choice. We offer a flexible work schedule and you get your choice of tools (both hardware and software) and most importantly, the opportunity to work on tough problems with the brightest minds around you.

Responsibilities

  • Work directly with Data Analysts and Platform Engineering Team to create reusable experimental and production data pipelines
  • Understand, tune, and master the processing engines (like Spark, Hive, Cascading, etc) used day-to-day
  • Keep the data whole, safe, and flowing with expertise on high volume data ingest and streaming platforms (like Spark Streaming, Kafka, etc)
  • Sheppard and shape the data by developing efficient structures and schema for the data in storage and transit
  • Explore as many new technology options for data processing, storage, and share them with the team
  • Develop tools and contribute to open source wherever possible

Qualifications

  • You have previously worked on building data pipelines ingesting and transforming large number of events per minute and terabytes of data per day.
  • You have worked with Spark and Kafka before and have experimented or heard about Flink/Druid/Ignite/Presto/Athena and understand when to use one over the other. Preferralbly, you have worked with cloud based big data processing platform such as AWS EMR, Google Cloud DataProc.
  • You are passionate about producing clean, maintainable and testable code part of real-time data pipeline.
  • You understand how microservices work.
  • You can connect different services and processes together even if you have not worked with them before and follow the flow of data through various pipelines to debug data issues.
  • You understand issues with ingesting data from applications in multiple data centres across geographies, on-premise and cloud and will find a way to solve them.
  • Proficient in Java/Scala/Python/Spark

Preferred Qualifications

  • Software development experience in one or more general purpose programming languages, preferably Scala.
  • Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients.
  • Experience with AWS services.
  • Contribution to open source projects.
  • Knowledge about the Japanese payment industry

Compensation

6.5 to 15 million JPY annually.

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