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Build and operate PayPay’s AWS-based data infrastructure using Terraform and Databricks, ensuring reliability, security, and smooth data workloads for the fintech platform.
About PayPay PayPay is a FinTech company that has grown to over 75M (as of August 2026) users since its launch in 2018. Our team is hugely diverse with members from over 50 different countries. OUR VISION IS UNLIMITED_…
Designs and executes automated and manual tests for PayPay’s fintech apps and APIs, using tools like Appium, Playwright, and AI assistants to ensure quality and reliability of banking and payment systems.
Build and run Java/Kotlin backend services for PayPay’s core banking platform, designing scalable microservices on AWS with Spring Boot, Kafka, and Redis while ensuring high reliability for a 70M-user fintech app.
Principal Software Engineer at PayPay designing and scaling high-performance distributed systems for a 75M+ user fintech platform using Java/Kotlin/Scala, Kubernetes, and AWS/GCP.
Build and maintain web frontend features for Japan’s leading payments app using TypeScript, Vue.js/React, and modern DevOps tooling.
Design, operate, and optimize large-scale database systems for PayPay’s financial services, using MySQL, PostgreSQL, Aurora, and AWS while automating workflows with Terraform and Python.
Designs and maintains AWS-based cloud infrastructure for PayPay’s payment systems, ensuring scalability, security, and cost efficiency while automating deployments for developers.
Designs, builds, and secures AWS-based cloud infrastructure for a fast-growing fintech platform, automating deployments and ensuring high availability for payment and banking systems.
Backend Engineer at PayPay building and scaling high-throughput payment systems using Java/Kotlin, distributed databases, and AI-augmented workflows.
Designs and executes automated tests for PayPay's mobile, web, and API systems, using AI tools to validate features and AI/ML components while improving QA standards.
You will develop test scenarios and detailed test cases for functional and non-functional requirements across mobile, web, and API products. You will prepare test data, tools, and environments; execute automated and…
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