This position is closed and is no longer accepting applications.

Cloud Platform Engineer

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

About PayPay

PayPay Minato-ku, Tokyo

With over 70M million registered users (as of July 2025), 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

PayPay is looking for a Cloud Platform Engineer for PayPay’s Cloud Based payment system. This role will be responsible for the engineering of Cloud Infrastructure Platforms to provide robust, reliable and cost-efficient Platform so that we can deliver the best experience for our growing customers base.

Tech Stack

  • AWS: VPC, EC2, ECS, EKS, Lambda, Cloudfront, MWAA, RDS, ElastiCache, DynamoDB, Opensearch, S3, CloudWatch, Cognito, SQS, KMS, Secret Manager, KMS, MSK, CodeCommit, CodeBuild, CodeDeploy, CodePipeline, CloudFormation and other services
  • Terraform, Github Actions, Prometheus, Grafana, Atlantis, ArgoCD, OpenTelemetry

Responsibilities

  • Architect and build a robust, scalable and stable infrastructure
  • Architect and build Infrastructure that is easily maintainable during patching and upgrades without downtime
  • Architect and build Infrastructure with AWS regional level failure tolerance
  • Work together with our Security Engineers to provision a secure Infrastructure
  • Automations for AWS Deployments to ensure fast delivery of Cloud Services to our developers
  • Provide through Automations means for developers to easily deploy resources on AWS

Requirements

  • More than 8 years of technical experience in cloud-based infrastructure platforms
  • Extensive technical hands-on experience with computing, storage, and analytical services on AWS
  • Demonstrated skill in programming and scripting languages, including Python, Shell Scripting, Go, and Rust
  • Experience with infrastructure as code (IAC) tools in AWS, such as Terraform, CloudFormation, and CDK
  • Proficient in Linux internals and system administration
  • Experience in production level infrastructure change management and releases for high traffic & business-critical systems
  • Experience in Cloud infrastructure and platform systems availability, performance and cost management
  • Strong understanding of cloud security best practices and payment industry compliance standards
  • Ability to demonstrate a high degree of ownership in a production environment, including incident management and cross-team collaboration
  • Experience with cloud services monitoring, detection, and response, as well as performance tuning and cost control
  • Familiarity with cloud infrastructure service patching and upgrades
  • Good understanding and experience with network especially on cloud platforms
  • Experience in AI/ML infrastructure design and operations
  • Excellent oral, written, and interpersonal communication skills

Nice to haves

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

  • Bachelor’s degree and above in a technology related field
  • Experience with other cloud service providers (e.g GCP, Azure)
  • Experience with Kubernetes
  • Experience with Event-Driven Architecture (Kafka preferred)
  • Experience using and contributing to Open Source tools
  • Experience in managing IT compliance and security risk
  • Published papers / blogs / articles
  • Relevant and verifiable certifications
  • Bilingual in English and Japanese is nice to have, but not required
  • JLPT Level 3 or above

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 their 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 their 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 their 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 their story...

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