Platform Engineer

About PayPay Card

PayPay Card Corporation was established in 2021 to provide users a FinTech service that is more accessible and convenient compared to previous credit cards and credit services, by integrating with the PayPay payment platform, which has surpassed 75 million users since its launch (as of August 2026).

We are looking for people who are passionate about refining our products at an overwhelming speed that other companies cannot match, as well as professionals who are interested in promoting the spread of cashless payments in Japan and the use of these payments as a financial life platform. Let us work together to create new value for users.

※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.

Job Description

PayPay Card is looking for a Cloud infrastructure and platform engineer for PayPay Card's cloud 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.

Main Responsibilities

• Architect and build a robust, scalable and stable infrastructure
• Architect and build Infrastructure that is easily maintainable during patching and upgrades
• 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, Dynatrace, Atlantis, ArgoCD, OpenTelemetry

Required Qualifications

• More than 5 years of technical experience in Cloud based Infrastructure Platform
• Ability to demonstrate high degree of ownership in a Production environment
• Good understanding of Cloud security best practices and payment industry compliance standards
• Expertise in designing, building and troubleshooting large-scale streaming and distributed systems using Kafka.
• Expertise in building Robust platforms based on NoSQL/KVS datastores like DynamoDB, Opensearch/ Elasticsearch and Redis.
• Experience in Cloud infrastructure and platform systems availability, performance and cost management
• Extensive technical hands-on experience of Computing, Storage and Analytical Services on Cloud(AWS)
• Experience with IAC tools in AWS such as Terraform, CloudFormation, CDK
• Experience with Cloud Services Monitoring, Detection and Response
• Experience in Cloud Services Performance Tuning, cost controls and management
• Experience in Cloud Infrastructure Service patching and upgrades
• PayPay DevOps emphasize automation. Demonstrated skill with the following are required:
• Python
• ShellScripting
• Go/ Rust (optional)
• Have excellent oral, written, verbal and interpersonal communication skills.

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 (CKA, CKAD or CKS)
• 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. Proficiency in either language is fine.

Working Conditions

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office)

※ You will be expected to work both in the office and remotely, in alignment with organizational guidelines and team objectives.

• LIFE in JAPAN FACTBOOK

Work Hours

• Full Flex Time (No Core Time)
• In principle, 9:00am ~ 5:45pm (actual working hours: 7h45m + 1h break)

Holidays

• Every Sat/Sun/National holidays (In Japan)/New Year's break/Company-designated Special days

Paid leave

• Annual leave (up to 14 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
• Personal leave (5 days each year, granted proportionally according to the month of employment)

＊PayPay Group's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.

Salary

• Annual salary paid in 12 installments (monthly)
• Reviewed once a year
• Overtime allowance, Late overtime allowance, Commuting and transportation expenses

Benefits

• Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
• 401K

Other Information

• PayPay Inside-Out (Corporate Blog)
• JP
• ENG
• Recruiting FACTBOOK for PayPay Card
• JP