About PayPay Card

PayPay is a FinTech company that in the five years since its launch in 2018, has surpassed 65 million users (as of August 2024) and is rapidly expanding its business scale as a payment platform used by approximately one in two smartphone users in Japan.

PayPay Card was established in 2021 to provide users with more accessible and convenient fintech services that were previously not possible with credit cards and credit services by integrating with the PayPay payment platform. We are looking for professionals who are passionate about refining our products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan and the financial life platform that uses them. We are looking for people who are passionate about this.

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

Job Description

We are looking for backend engineers to build, or rebuild, rock solid services with a laser focus on scalability and maintainability. 

PayPay Card aims at revolutionizing the credit card industry, making payment easier than ever, from two different angles:

  • Bring the credit card experience to the next level: we have many functionalities in the pipe to improve our product, not to mention the integration into the PayPay ecosystem as PayPay Card is part of the PayPay Group.
  • (Re-)architect our systems landscape: we want to reassess and fix the behind-the-scenes to power a top-notch user experience. It is bundled with difficult design challenges to solve: we simply want to get it right.

As a fast-paced company leading the payments industry, we need our engineers to be versatile and enthusiastic to take on new challenges in order to stay at the forefront. Indeed, we strive for continuous improvement within our systems as well as outside our systems. Additionally, we value communication, to smoothly cooperate with other teams, and inclusivity, to efficiently navigate in a multicultural environment.

 

Main Responsibilities

  • Design, support the implementation and deliver large scale, and complex, systems
  • Manage teams stakeholders such as product managers or frontend engineers but also other team leads or non-tech stakeholders.
  • Leverage the infrastructure to solve such large scale problems.
  • Acts as a gatekeeper to the team quality standard
  • Triage, debug and resolve product issues or other incoming inquiries
  • Mentor other team members and saveguard the team quality standards

 

Tech Stack

We currently work with

  • Back-end services: 
    • Main implementations are in Spring Boot, with a mix of Java 11/Spring Boot 2 and Java 17/Spring Boot 3. 
    • Some legacy systems are written in Java EE.
    • Testing is done with JUnit and Mockito
    • Deployment relies on AWS ECS 
    • CI/CD is handled by AWS CodePipeline 
  • Infrastructure 
    • All our services run in AWS
    • Infrastructure is managed by AWS CloudFormation
    • AWS CloudWatch is used for observability
  • Coding environment: GitHub, IntelliJ, Gradle
  • Documentation & Project management: Confluence, Miro, JIRA
  • Communication: Slack, Zoom, Office 365

Please note that PayPay Card is challenging its current architecture, potentially introducing new technologies and/or deprecating existing ones.

 

Required Qualifications

  • Excellent skills in Java and Spring Boot
  • Experience with RDBMS 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 and event-driven architectures
  • Experience designing high traffic systems.
  • Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development.
  • English business proficiency

 

Preferred Qualifications

  • Java EE understanding
  • Domain-driven development knowledge
  • Experience in a multicultural environment
  • Stakeholder management is welcomed
  • Japanese conversational proficiency is a plus

 

Working Conditions

Employment Status

  • Full Time

Office Location

  • Tokyo Office
  • You can live anywhere in Japan 

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 16 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)

Salary

  • Annual salary paid in 12 installments (monthly)
  • Reviewed once a year
  • Special Incentive once a year *Based on company performance and individual contribution and evaluation
  • Overtime allowance,Late overtime allowance,Commuting and transportation expenses, Work style support allowance

Benefits

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

Other Information

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

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