Senior Backend Engineer

PayPay Card Corporation Chiyoda City, Tokyo
  • 💴 No salary range given
  • 🏡 Fully remote
  • 🧪 Minimum years of experience unspecified
  • 💬 No Japanese required
  • 🌏 Apply from abroad
  • 🧳 Relocate to Japan

About PayPay Card Corporation

PayPay Card Corporation Chiyoda City, Tokyo

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.

Key benefits

  • Part of PayPay Group
  • Internationalizing engineering division
  • Building an English product team from scratch

About the position

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.


  • 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


  • 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.

Nice to haves

While not specifically required, tell us if you have any of the following.

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

Hiring Process

  1. 1

    Application Review

    Please submit an English CV when applying.

  2. 2

    Coding Test

  3. 3

    3-4 Interviews

    Includes both technical and behavioural interviews.

  4. 4

    Offer Meeting


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