シニアバックエンドエンジニア

As a シニアバックエンドエンジニア at PayPay Card, your primary responsibilities will include designing and developing scalable systems that enhance user experience, collaborating with cross-functional teams, and conducting code reviews. You’ll focus on building microservices that ensure high availability, maximizing system performance through refactoring, and improving API functions. Leading large projects and mentoring junior developers will also be key aspects of this role.

To apply for the シニアバックエンドエンジニア position at PayPay Card, candidates should have extensive experience in system development, typically around 7 years or more, with a strong focus on developing using object-oriented languages, particularly Java and Spring Boot. Experience in architectural design, problem-solving, and database management is essential.

Key skills for a シニアバックエンドエンジニア at PayPay Card include proficiency in Java, Spring Boot, microservices architecture, and performance tuning. Familiarity with AWS services, as well as experience with JIRA, Docker, and Git, will set you apart. Problem-solving and the ability to lead technical projects are also highly valued.

The work environment for a シニアバックエンドエンジニア at PayPay Card is flexible and remote-friendly, promoting a culture of collaboration and innovation. You will engage with a diverse team, have the freedom to contribute your ideas, and work on exciting projects that change the landscape of financial services in Japan.

Yes, a シニアバックエンドエンジニア at PayPay Card can work remotely. The company supports a flexible work style to cater to various living situations, allowing you to balance your professional and personal life while contributing to our innovative projects.

In your answer, discuss specific projects where you utilized Java and Spring Boot, emphasizing the complexity of the systems you built, any particular challenges you faced, and how you overcame them. Use metrics to illustrate your contributions.

Explain your systematic approach to debugging, including tools you use and how you prioritize issues. Discuss specific performance tuning techniques you’ve employed and how these have significantly impacted system performance.

Share your philosophy on code reviews, focusing on the importance of best practices, constructive feedback, and collaboration. Provide examples of successful code review experiences that led to better code quality in your projects.

Choose a specific technical challenge relevant to backend engineering, detailing the context, the steps you took to analyze and address the issue, and the successful outcome. Highlight your problem-solving skills and ability to think critically.

Discuss various approaches you've implemented to enhance system scalability, such as microservices architecture, load balancing, or database optimization. Use examples to illustrate how these strategies were successfully applied in past projects.

Describe your communication style and how you ensure alignment between technical solutions and business objectives. Share an example where your collaboration significantly enhanced project outcomes.

Emphasize your understanding of the importance of automated testing and how it fits into your development workflow. Discuss your experience with testing frameworks (like JUnit or Mockito) and the impact of a robust testing strategy on project success.

Share your methods for staying current, such as following tech blogs, attending conferences, or participating in online courses. Highlight how staying informed helps you bring innovative solutions to your work at PayPay Card.

Detail your experience working with relational databases, query optimization, and design principles. Provide an example showcasing your ability to enhance database performance that had a tangible impact on system efficiency.

Express your enthusiasm about PayPay Card’s mission to innovate financial services in Japan, focusing on how your skills and values align with the company's vision. Talk about how you can contribute to the team's goals and your desire to tackle challenging projects.