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Senior Backend Engineer at PayPay Card in 日本 | Swiftcruit
PayPay Card Corporation was established in 2021 to provide users a FinTech service that is more accessible and convenient compared to previous credit cards and credit services, by integrating with the PayPay payment platform, which has surpassed 70 million users since its launch (as of July 2025).
We are looking for people who are passionate about refining our products at an overwhelming speed that other companies cannot match, as well as professionals who are interested in promoting the spread of cashless payments in Japan and the use of these payments as a financial life platform. Let us work together to create new value for users.
※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.
Job Description / 業務について
We are looking for senior 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.
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 with microservices & event-driven architecture
Experience gRPC communication design and implementation
Experience in a multicultural environment
Japanese conversational proficiency is a plus
ドメイン駆動設計（DDD）に関する知識
JavaおよびSpring Bootの経験
gRPCおよびKafkaの開発経験
グローバル環境での業務経験
他部門とのステークホルダーマネジメントの経験
Working Conditions
Employment Status
Full Time
Office Location
Hybrid Workstyle (flexible working style including Remote and office) ※ You will be expected to work both in the office and remotely, in alignment with organizational guidelines and team objectives.
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 14 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
Personal leave (5 days each year, granted proportionally according to the month of employment) ＊PayPay Group's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.
Salary
Annual salary paid in 12 installments (monthly)
Reviewed once a year
Overtime allowance, Late overtime allowance, Commuting and transportation expenses
Benefits
Social Insurance (health insurance, employee pension, employment insurance and compensation insurance)
