Senior Backend Engineer

Remote OK - Anywhere in Japan
Full-time
April 10, 2024

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

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

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About PayPay Card

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.

PayPay Card is looking for professionals who are passionate about refining their products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan.

Japanese Language Policy
PayPay Card started internationalizing our engineering teams in 2024. They are looking for someone who has business English proficiency and an open mind to embrace Japanese culture.

PayPay Card is building up an English speaking product engineering team from scratch. They are on the move of creating an international friendly environment like PayPay's Product Division, where English is the main language and having interpreters who can provide simultaneous translation when necessary.
Paid Leave
- Holidays: Saturdays and Sundays, National holidays (in Japan), Year-End and New Year Holidays, 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)
Benefits
👶 Parental Leave

💚 Translation support (EN<>JP)

🧡 Interpretation support (EN<>JP)

💟 Complete health and social insurance
Engineer Interview Process
PayPay Card's Hiring process are as below:
- Application Review (English CV is required)
- Coding Test or Take Home Assignment (only applied to required positions)
- 3-4 Interviews (including both technical and behavioral interview)
- Offer Meeting
Remote Work
PayPay Card Engineering Team (depending on positions) has a full remote working style that allows you to live anywhere in Japan. There may be times you are asked to come to the office for team building and other activities. However, as long as you are living in Japan, you can generally live and work wherever you want.
Work style
- Super Flex Time with no core time
- In principle, from 9:00am - 5:45pm (actual working hours: 7h45m + 1h break)
Highlights of PayPay Card

PayPay Card is part of PayPay Group
PayPay is a FinTech company that has grown to over 63M users (as of March 2024) since its launch in 2018, and is rapidly expanding its business scale as a payment platform used by approximately one in two smartphone users in Japan. By integrating with PayPay payment platform, PayPay Card is able to provide users with more accessible and convenient FinTech services that have not been possible with credit card services.

Opportunity of taking part in internationalizing engineering division
PayPay Card is aiming to become No.1 domestic credit card company and we believe having a multinational engineering team like PayPay will be a key to grow. We want to improve our engineering practices to meet worldwide industry standards and we are targeting to internationalize the engineering division, introduce scalable engineering practices and improve cross-company interaction.

Japanese is not required
PayPay Card is building up an English speaking product engineering team from scratch. We are on the move of creating an international friendly environment like PayPay's Product Division, where English is the main language and having interpreters who can provide simultaneous translation when necessary.