Backend Engineer

Backend Engineers for PayPay Card

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

PayPay Card aims to revolutionize 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 pipeline 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, and 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 trouble inquiries
• Adopt problem solving as a way of life – always go to the root cause! Support the code you write in production

Required Qualifications

• 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 Qualifications

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