Cloud Platform Engineer
Japanese fintech company operating the PayPay mobile payments service.
About PayPay Corporation
PayPay Corporation develops and provides electronic payment services, including the PayPay mobile payment platform. It was founded on June 15, 2018, is headquartered in Tokyo, Japan, and currently operates an active financial-services platform integrating payments with card, banking, securities, and insurance offerings.
Skills
About the Role
You will own and improve the end-to-end application delivery platform, from CloudFront through EKS clusters. You will build in-house platform tools and custom Kubernetes controllers, automate operational workflows, maintain delivery infrastructure, and help define reliability standards. You will participate in on-call support, troubleshoot platform issues, and document platform architecture and procedures.
Requirements
- Demonstrable experience with advanced software engineering practices, including unit and integration testing
- Deep understanding of Kubernetes internals and the controller-runtime framework
- Experience developing, testing, and maintaining custom Kubernetes controllers, operators, and CustomResourceDefinitions
- Experience as a Platform Engineer, Site Reliability Engineer, or similar role focused on end-to-end platform ownership
- Practical experience with Karpenter, Argo CD, and Terraform
- Strong networking fundamentals and ability to troubleshoot request paths across CloudFront, WAF, load balancers, Kubernetes networking, service mesh, and workloads
- Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience
Responsibilities
- Develop, maintain, and automate in-house tools, Kubernetes manifest generators, and scripts using Python or Go
- Upgrade and patch EKS clusters and associated components through safe, repeatable automation
- Manage and optimize Karpenter and Argo CD
- Implement and manage service mesh solutions such as Istio and Linkerd
- Participate in a 24/7 on-call rotation and implement preventative measures
- Configure and manage CloudFront distributions and WAF web ACLs
- Develop and maintain platform architecture, process, and troubleshooting documentation
Benefits
- Super Flex Time with no core time
- Annual leave of up to 14 days in the first year
- Personal leave of 5 days each year
- Social insurance
- 401K
- Translation and interpretation support
- Visa sponsorship
- Relocation support
