Join Japan's leading internet services company as a Java Application Engineer in a HAKEN (dispatch) position, open only to candidates residing in Japan. In this dynamic, large-scale environment, you'll contribute to mission-critical systems for one of the nation's top e-commerce platforms. You'll work with cutting-edge Java technologies, optimize APIs, and ensure high availability for millions of users.
Design and maintain scalable Java-based applications using Spring Framework
Develop RESTful APIs and GraphQL endpoints to support seamless data exchange
Optimize and manage RDBMS systems for high-performance data retrieval
Participate in code reviews and implement best development practices
Resolve technical issues and improve system performance and availability
Experience:
4+ years of Java development experience using Spring Framework
Strong track record in building RESTful APIs and GraphQL services
3+ years managing relational databases (e.g., MySQL, PostgreSQL)
Solid understanding of software development principles
Soft Skills:
Proactive problem-solving and team collaboration
Effective communication in cross-functional environments
Japanese: Conversational level
English: Intermediate to Business level
Experience with cloud platforms like AWS, GCP, or Azure
Familiarity with Docker, Kubernetes, and microservices architecture
Exposure to Agile development methodologies
Be part of Japan's most innovative internet and e-commerce leader. This top-tier tech company empowers millions of users nationwide, with a focus on scalable systems, advanced engineering practices, and future-focused platforms. As an engineer, you'll work closely with highly skilled teams in a collaborative, forward-thinking culture.
Direct impact on services used across Japan's e-commerce ecosystem
Opportunities for professional development and tech skill advancement
Station-side office with a casual dress code and minimal overtime
Company cafeteria, full benefits, and education support included
Flexible, dynamic work environment with modern tooling
Don't Miss Out - Apply Now!