Software Engineer（Backend)　

As a Software Engineer (Backend) at PayPay, you'll be responsible for developing in-house systems that cater to various business needs. This includes designing and implementing web applications, pushing forward automation and efficiency initiatives, and ensuring seamless integration across all operational domains. Your role is essential in maintaining the rapid growth of our platform.

To qualify for the Software Engineer (Backend) position at PayPay, you’ll need at least three years of experience in web application architecture design or development using object-oriented languages such as Java. Strong knowledge of AWS and Spring is essential, along with business-level Japanese language skills.

In the Software Engineer (Backend) role at PayPay, you'll work with technologies such as Java, Python, Spring Boot, and Vue.js. Additionally, you will engage with Docker, Kubernetes, MySQL, and various AWS services like S3, EC2, and Lambda, ensuring a comprehensive tech stack that fuels our innovation.

Yes, PayPay offers a work-from-anywhere policy for the Software Engineer (Backend) position. You can work from the comfort of your home or any satellite office, promoting a flexible work-life balance that allows you to thrive both personally and professionally.

At PayPay, the company culture is highly collaborative and innovation-driven. Software Engineers are encouraged to communicate openly, share ideas, and work together as a cohesive team. Our focus on agility and rapid development ensures that each member plays a crucial role in our journey towards being a leading fintech company.

When answering this question, highlight specific projects where you've used Java and Spring. Discuss the architecture of applications you've built, any challenges faced, and how you resolved them, ideally demonstrating your thought process and technical expertise.

Explain your process for designing scalable applications, mentioning considerations like load balancing, database selection, microservices architecture, and caching strategies. Provide examples of how your designs have handled increased traffic in past projects.

Share your background with AWS, focusing on specific services you have used (e.g., EC2, RDS) and how they contributed to the performance and scalability of your applications. Discuss any hands-on experiences that demonstrate your ability to leverage the cloud effectively.

Discuss practices such as code reviews, test-driven development (TDD), and using tools for static code analysis. Emphasize the importance of maintainable code and how you strive to implement best practices in all your coding projects.

Choose a specific example that highlights your problem-solving skills. Describe the situation, the steps you took to investigate and resolve the issue, and the end result, focusing on what you learned from the experience.

Explain your understanding of Agile principles and how you've applied them in previous roles. Provide insights into your experience with sprint planning, stand-ups, and retrospectives, and how they enhance the development process.

Talk about your time management skills and prioritization techniques. Mention any past experiences where you've successfully met deadlines without compromising on quality, perhaps by effective task delegation or breaking down projects into manageable pieces.

Discuss the tools and IDEs you feel most comfortable with and why. Mention any specific preferences for debugging, source control (like Git), and communication tools that facilitate collaboration in a remote setting.

Share your strategies for ongoing learning, such as following industry blogs, participating in webinars, or attending conferences. Discuss any online courses or certifications relevant to backend development you've pursued.

Articulate your personal goals and values that align with PayPay's mission. Discuss your passion for fintech and how you see PayPay as a place to contribute to impactful projects that shape the future of financial services.