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Senior Java Engineer - Lead API Design in Fintech
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
Job Description
Join a high-impact engineering team building incentive and payment platforms used across a global digital ecosystem. This role focuses on leading backend design and delivering secure, high-performance APIs at scale.
Client Details
A large, globally recognized technology-driven organization operating in e-commerce, fintech, and digital services. The team develops incentive and payment platforms that support millions of users and drive ecosystem growth across multiple markets.
Description
- Design, develop, and maintain scalable Java applications using Spring Boot and the Spring Framework
- Lead the implementation of robust RESTful APIs for system integrations
- Ensure adherence to secure coding standards and application security best practices
- Utilize containerization (Docker) to enhance deployment efficiency and consistency
- Write and optimize SQL queries; ensure high database performance
- Apply established design patterns to build clean, maintainable, and reusable code
- Collaborate with cross-functional teams to define requirements and troubleshoot production issues
- Continuously evaluate and adopt new technologies to improve system performance and reliability
Job Offer
- Opportunity to lead backend design for mission-critical fintech platforms
- Exposure to large-scale, globally deployed systems
- International and collaborative engineering environment (English-speaking)
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
- Deep hands-on experience with Spring Boot and the Spring Framework
- Solid understanding of application security principles
- Proven ability to design and implement RESTful APIs
- Experience with Docker or similar container technologies
- Strong knowledge of relational databases and SQL
- Familiarity with design patterns and clean architecture principles
- Business-level English (e.g., TOEIC 800+ or equivalent)
- Experience with AWS or other cloud platforms
- Knowledge of microservices architecture and distributed systems
Job Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
| Industry | Software |
