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Posted May 24, 2026

Cloud Platform Engineer

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. Primary 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 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 Qualifications • 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 • Proficiency in either English or Japanese Preferred Qualifications • 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