Principal Software Engineer

PayPay Minato-ku, Tokyo
  • 💴 No salary range given
  • 🏡 Fully remote (within Japan)
  • 🧪 Minimum years of experience unspecified
  • 💬 No Japanese required
  • 🌏 Apply from abroad
  • 🧳 Relocate to Japan
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About PayPay

PayPay Minato-ku, Tokyo

With over 65M million registered users (as of August 2024), PayPay is the country’s most popular mobile wallet used by approximately one out of every two smartphone users in Japan.

Key benefits

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

About the position

We are looking for a Principal Software Engineer to work on our various systems which need high scalability, reliability and availability. These challenges require creative thinking and a deep understanding of how software and platform work.

Our ideal candidate is an ace 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. So, if challenges excite you, and you’re ready for a big one, let us know.

Responsibilities

  • Design, develop, test, deploy, maintain and improve software and core platform
  • Lead technical aspects for multiple projects through hands-on execution and guidance of other engineers
  • Provide architectural blueprints and technical leadership.
  • Provides input and guidance during all phases of programs to solve challenging technical issues.
  • Build common platforms to support different business vertical application systems
  • Develop tools and contribute to open source wherever possible
  • Adopt problem-solving as a way of life – always go to the root cause!

Requirements

  • Degree in Computer Engineering or Computer Science or 7+ years equivalent experience in software development
  • Strong fundamentals in data structure, algorithm, operating system and object-oriented programming
  • Deep understanding of concurrency, distributed computing, large-scale system, messaging and algorithm
  • Software development experience in one or more general-purpose programming languages
  • Interest and ability to learn new technology stacks as needed

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Experience in working for system development in finance, payment, or similar industries
  • Experience with AWS services
  • Contribute to open-source projects
  • Language ability in Japanese and English is a plus (We have a professional translator but it is nice to have language skills)
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Meet PayPay's Developers

Ashwini leads one of PayPay’s payment sub-teams. She got there by doing something she’s done throughout her career: identifying something she wants to do and asking to do it.

Read her story...
Photo of Yoseph Savianto

iOS Development at PayPay

with Yoseph Savianto

Yoseph joined PayPay after being attracted to their mission of making Japan a cashless society. As an iOS Engineer, he originally joined their iOS feature team, but now works on their platform team, creating an internal SDK for their iOS and Android apps.

Read his story...

Shilei started working on PayPay before it launched, and has seen it grow into a product used by tens of millions of users. He explains how diversity has helped them overcome challenges, and what PayPay is looking for in candidates.

Read his story...
Photo of Adrian Mariadas

Refactoring PayPay’s Android App

with Adrian Mariadas

Adrian came to Japan to join PayPay as an Android Engineer. As the app has grown in scope, refactoring the codebase to ensure development can continue at a rapid pace has been a big part of his job.

Read his story...

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