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Senior Java Engineer - Lead API Design & Scalable Platforms
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
Job Description
This role focuses on leading the basic design and development of scalable, secure Java-based applications powering global incentive and payment platforms. You will collaborate across teams to deliver high-performance REST APIs and drive best practices in modern software engineering.
Client Details
A large, globally recognized technology company operating in the e-commerce and fintech space. Their platforms support millions of users worldwide, driving innovation in payments, rewards, and digital services at scale.
Description
- Lead the design, development, and maintenance of robust Java applications using Spring Boot and the Spring Framework
- Architect and implement RESTful APIs for seamless integration across systems
- Ensure security best practices are embedded throughout the development lifecycle
- Utilize containerization tools (e.g., Docker) for efficient deployment and scalability
- Design and optimize relational database structures and SQL queries
- Apply software design patterns to create maintainable and reusable code
- Collaborate with cross-functional stakeholders to gather requirements and resolve technical challenges
- Stay updated on Java ecosystem advancements and emerging technologies
Job Offer
- Opportunity to take a lead role in system design for large-scale platforms
- Exposure to global products with high user impact
- Collaborative, international engineering environment
To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.
General Requirements
| Minimum Experience Level | No experience |
| Career Level | Mid Career |
| Minimum English Level | Fluent |
| Minimum Japanese Level | Basic |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Required Skills
- Strong proficiency in Java development
- Extensive experience with Spring Boot and the Spring Framework
- Solid understanding of application security best practices
- Proven experience designing and developing RESTful APIs
- Hands-on experience with Docker or similar container technologies
- Strong knowledge of relational databases and SQL
- Good understanding of software design patterns and clean architecture
- Experience with AWS or other cloud platforms
- Familiarity with microservices architecture and distributed systems
- English: Business level (e.g., TOEIC 800+)
- Japanese: Not required
Job Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
| Industry | Software |
