PayPay

Backend Engineer (Core Banking & Product Features)

Japan (Hybrid)RemotePosted Today
Full TimeMidRemoteJP

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Job Description

Background of Recruitment We are looking for Backend Engineers to drive the continued growth of the PayPay Group by continuously improving our banking systems and building a robust, flexible next-gene

Key Highlights

  • Spring Boot, JUnit, Resilience4j, Feign
  • MySQL/AuoraDB, DynamoDB, ELK, Kafka, Redis
  • Docker, Kubernetes, ArgoCD, AWS
  • GitHub, Gradle, Maven, npm/yarn, Flyway
  • PlantUML, draw.io, miro.com

Qualifications

Required Qualifications

  • 3-5 years of backend development experience
  • Practical experience in Java. Excellent skills in other common programming languages
  • Understanding of data structures, algorithms, and the basics of object-oriented programming
  • Schema design in DB (RDB, NoSQL, etc.) and efficient query creation
  • Experience in web application development and tuning, and development with security considerations
  • English (Business level conversational proficiency)
  • Hands-on experience with AI/LLM tools (e.g., ChatGPT, GitHub Copilot, Gemini, CodeWhisperer, or similar) in professional software development.

Preferred Qualifications

  • Development experience in the financial industry
  • Experience implementing platform components such as RESTful API, Pub/Sub systems, database clients
  • Development experience using AWS services
  • Experience in system design, developing applications/web products handling large transactions, and applications/web products requiring scalability
  • Experience with microservices
  • Ability to conduct business in Japanese (native-level proficiency or equivalent to JLPT N1/N2)
  • Proven track record of integrating AI-assisted development into system design and delivery
  • Contributions to AI-related open-source projects or automation of workflows with AI is a plus

Skills & Technologies

GoSpringMySQLDynamoDBKafkaRedisDockerKubernetesAWSConfluenceJiraJavaKotlinNoSQL

About the Company

PayPay

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Job Details

Employment Type

Full Time

Experience Level

Mid

Location

Japan (Hybrid)

Work Mode

Remote

Posted

Today

Country

JP