Senior Java Developer (dispatch)

We are looking for a Senior Java Developer to join a large-scale engineering team for a giant tech company, working on high-traffic systems supporting millions of users and transactions.

You will work on backend services and APIs within a microservices architecture, contributing to system design, development, code reviews, troubleshooting, and performance improvements. The platform makes extensive use of Kafka for event-driven and asynchronous processing and Redis for caching and high-speed data access.

■Key Responsibilities:

• Contribute to the design, development, testing, and deployment of Java-based applications and APIs.
• Collaborate with the team to ensure architectural integrity, scalability, robustness, and alignment with business requirements.
• Work effectively with team members to maintain a collaborative and high-performing development environment.
• Collaborate effectively with product managers, project managers, and other stakeholders to deliver solutions that meet business needs.
• Contribute to the creation and maintenance of technical documentation.
• Actively participate in all phases of the software development lifecycle, from requirements gathering to deployment and maintenance.
• Identify performance bottlenecks and architectural weaknesses and work with the team to address them.
• Contribute to the design and implementation of microservices architecture, ensuring modularity, scalability, and maintainability.
• Participate in code reviews, accept constructive feedback, and ensure adherence to coding standards and best practices.
• Continuously learn about the latest industry trends and emerging technologies, and evaluate new technologies and tools to improve our platform.
• Effectively communicate complex technical concepts to team members.
• Contribute to continuous improvement initiatives to enhance the team's efficiency and effectiveness.

■Requirements:

• 7+ years of professional software/backend development experience with Java
• Strong experience with Spring Boot / Spring Framework
• Experience developing large-scale, high-traffic / high-QPS systems
• Hands-on experience with Apache Kafka
• Hands-on experience with Redis
• Experience designing and developing REST APIs and microservices
• Good understanding of distributed systems, scalability, concurrency, and performance tuning
• Experience with relational databases and SQL
• Experience with Git, CI/CD, testing, and code review
• Comfortable working in an Agile/Scrum engineering environment

Experience with Kubernetes, Docker, cloud platforms, monitoring/observability tools, and other distributed caching or messaging technologies would be an advantage.

■Industry

Software, ERP, BI, CRM, Web Application, Cloud (SaaS)

■Expected annual salary

¥6,500,000 〜 ¥8,500,000

If you are interested in this exciting position, we look forward to your application.