PayPay Corporation is hiring a
Senior Backend Engineer

Summary

PayPay is a FinTech company looking for a Senior Backend Engineer to work on P2P and Chat systems. The role involves designing large scale systems, developing tools, collaborating with team members, and more. The tech stack includes Java, Kotlin, Scala, Spring Boot, JUnit, Resilience4j, Feign, MySQL/AuroraDB, DynamoDB, ELK, Kafka, Redis, TiDB, Docker, Kubernetes, ArgoCD, AWS, GCP, GitHub, IntelliJ, Gradle, Maven, npm/yarn, Flyway, Jenkins, BigQuery, Kibana, Spark, PlantUML, draw.io , miro.com, Slack, and Zoom.

Requirements

• Excellent skills in Java, or any other generalized programming language, such as Scala, Python, or Go
• Interest and ability to learn other coding languages as needed
• Experience with SQL and NoSQL databases, along with distributed cache
• Strong fundamentals in data structures, algorithms and object oriented programming
• In-depth understanding of concurrency and distributed computing
• Experience implementing platform components such as RESTful APIs, Pub/Sub Systems, and Database Clients
• Experience with microservices
• Experience designing high traffic systems
• Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development
• Business of English or Japanese

Responsibilities

• Design large scale systems with high complexity to support our high throughput applications
• Understand how to leverage infrastructure for solving such large scale problems
• Develop tools and contribute to open source wherever possible
• Adopt problem solving as a way of life – always go to root cause!
• Support the code you write in production
• Collaborate with front-end developers and external team members to integrate user-facing elements with server-side logic
• Participate in code reviews to maintain high quality code standards and ensure security/data protection measures
• Support team members by providing technical guidance and design directions
• Constantly identify performance improvements and optimize the application for maximum speed and scalability
• Collaborate with product managers ands other stakeholders to gather requirements and deliver features on time

Preferred Qualifications

• Experience in working for system development in finance, payment, or similar industries
• Language ability in Japanese and English is a plus (We have a professional translator but it is nice to have language skills)

Benefits

• Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
• 401K
• Language Learning support
• Translation/Interpretation support
• VISA sponsor + Relocation support
• Paid leave (Annual leave, Personal leave, and PayPay's own special paid leave system)
• Salary (annually, reviewed once a year, with special incentive once a year)
• Late overtime allowance, Work from anywhere allowance (JPY100,000)