About PayPay

Minato-ku, Tokyo

With over 55 million registered users (as of February 2023), 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

At PayPay, we’re constantly working on improving our systems and processes to be prepared for PayPay’s exponential growth. As an SRE at PayPay, we strive towards empowering our developers with the right tools and ensuring high availability, top-notch performance so that our users can have a great experience with our services.

Considering PayPay’s growth, we are looking for experienced SRE who can deliver insights into system bottlenecks, ensure reliability of the system and ensure that CI/CD processes are efficient and scalable for the increasing number of services that our company is offering.

Specifically, we are looking for someone who can bring informed and unique viewpoints, enjoys collaborating with a cross-functional team and is actively pushing boundaries to develop scalable solutions and positive user experiences.


  • Building software and solutions for teams to optimize SDLC
  • Deploy and maintain CI/CD pipelines across multiple environments
  • Iterate on best practices to increase the quality and velocity of deployments
  • Analyze current technologies used in the company and develop steps to improve observability and visibility into potential bottlenecks
  • Ensuring system stability by pre-emptively verifying failure scenarios and implement solutions to reduce MTTR
  • Implement industry best practices for system hardening and configuration management
  • Develop solutions to improve system performance with a focus on high availability, scalability and resilience
  • Establish SLAs for service uptime, and integrate with telemetry and alerting platforms to enforce them
  • To ensure seamless flow of information between teams, document the knowledge gained.
  • Be up to date on modern technologies and trends to advocate for their inclusion within products if they are an added value


  • Good understanding of DevOps concepts and implementation
  • CI/CD implementation expertise
  • Experienced in docker image management and optimizations
  • Knowledge about storage options like SQL, NoSQL and distributed storage like TiDB
  • Experience operating Kubernetes and managing manifests
  • Ability to program with one or more high level languages like Python, Java, etc
  • Proactive in finding problems, areas of improvements and performance bottlenecks for distributed systems
  • In-depth knowledge and hands-on experience with AWS and production workloads
  • Strong coding skills with one or more high level languages
  • Excellent communication skills and collaborative attitude
  • Keen on trying new technologies and taking up challenges

Preferred Qualifications

  • Knowledge about Microservices
  • Knowledge about observability and how to gather data
  • System design experience and capacity planning for large distributed systems
  • Understanding of Automation tools and implementation
  • Terraform/cloud formation experience
  • Experience with managing monitoring tools like Cloudwatch, NewRelic etc.


7 to 13 million JPY annually.

Meet PayPay's Developers

Growing your career by asking for you want

with Ashwini Meshram

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...

Rapidly scaling to tens of millions of users

with Shilei Long

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...

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...

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...

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