1. Lead the architectural design and technical optimization of the foreign exchange and payment core systems, ensuring system stability under high concurrency and high security scenarios;

2. Design and implement complex fund flow models, including core modules such as exchange rate calculation, financial settlement, and fund reconciliation;

3. Optimize key technical challenges such as distributed transactions, idempotency handling, and payment link monitoring;

4. Build efficient distributed caching and queuing mechanisms to enhance the real-time performance and throughput of payment transactions;

5. Conduct in-depth research on the application scenarios of new technologies such as blockchain and virtual currencies in payments;

1. Bachelor’s degree or higher in a computer-related field, with over 5 years of experience in Java development; experience in payment or currency exchange system development is preferred;

2. Proficient in core Java technologies, familiar with JVM tuning, concurrent programming, and multithreading techniques, capable of handling high concurrency and high-performance scenarios;

3. Skilled in mainstream frameworks such as Spring, Spring Boot, and MyBatis, with the ability to design and implement microservice architectures;

4. In-depth understanding of distributed system principles, with practical experience in distributed transaction processing, idempotency design, and payment link monitoring;

5. Expertise in database design and performance optimization, familiar with relational databases such as MySQL and PostgreSQL, and proficient in distributed caching and messaging queue technologies like Redis and MQ;

6. Experience related to capital flow, including the development of core modules such as exchange rate calculation, financial settlement, and reconciliation;

7. Some research experience in blockchain and virtual currency technologies, able to explore innovative applications in payment scenarios;

8. Clear logical thinking, excellent technical problem-solving skills, and capable of leading complex technical challenges;

9. Preference for candidates with over 3 years of experience in large companies.