Backend Engineer Core Banking and Product Features
Skills
About the Role
You will develop and operate Java and Kotlin backend applications for core banking systems. You will design reliable, high-performance applications and architecture, select middleware, use infrastructure to resolve system challenges, and tune, monitor, and respond to alerts for microservices. You will be expected to join the project through a secondment to PayPay Bank.
Requirements
- 3–5 years of backend development experience
- Practical Java experience and strong skills in other common programming languages
- Understanding of data structures, algorithms, and object-oriented programming fundamentals
- Database schema design and efficient query creation for relational and NoSQL databases
- Web application development and tuning experience, including security considerations
- Business-level conversational English
- Hands-on professional software development experience using AI or LLM tools
Responsibilities
- Develop and operate Java and Kotlin backend applications for core banking systems
- Design and develop applications for performance, stability, and high reliability
- Implement infrastructure usage to resolve system challenges
- Design architecture based on application requirements and select middleware
- Tune microservice performance, configure monitoring, and respond to alerts
Benefits
- Social insurance
- 401K
- Translation and interpretation support
- Visa sponsorship
- Relocation support
- Super flex time with no core time
- Annual leave
- Personal leave