PayPay Card logo
PayPay Card

Backend Engineer

Location
Remote
Remote
On-site / hybrid
Visa
Sponsorship available
Language
Japanese: Not Required / English: Business Level
Posted
Mar 26, 2026
AWS
Java
Spring
Backend
Engineering
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Overview

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

Support the design, implementation and delivery of large scale, and complex, systems, while collaborating with product managers, frontend engineers or other team members

Understand how to leverage infrastructure to solve large scale problems

Contribute to the team by sharing knowledge, participating in code reviews and providing feedback to uphold and ensure best practices

Triage, debug and resolve product issues or other incoming troubles inquiries

Adopt problem solving as a way of life – always go to the root cause! Support the code you write in production

Required Skills

  • Experience in using Spring Boot in a professional environment
  • Experience with RDBMS, NoSQL databases along with distributed cache
  • Strong fundamentals in data structures, algorithms and object oriented programming
  • In-depth understanding of concurrency and distributed computing
  • Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in SaaS platform development
  • English business proficiency

Preferred Skills

  • Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients
  • Experience in system design for high traffic application with scalability in mind
  • Experience in microservices & event-driven architecture
  • Experience in a multicultural environment
  • Japanese conversational proficiency is a plus

Quick Facts

CompanyPayPay Card
LocationRemote
RemoteOn-site / hybrid
VisaAvailable
LanguageJapanese: Not Required / English: Business Level
Interested in this role?

Submit your application for this role at PayPay Card.

Apply Now