Senior Java Engineer (CEX experience) - Mandarin Speaking

Hyphen Connect Limited; Hong Kong; On-site; HKD 669,600 - 1,004,400; Full time

Job summary

Hyphen Connect Limited is seeking experienced backend developers in Hong Kong to enhance its centralized exchange. The ideal candidate will possess a Bachelor’s in Computer Science and a strong command of Java, with over 8 years of relevant experience.

Responsibilities include developing systems, designing architectures for payment solutions, and contributing to solution designs. CEX experience is mandatory, and candidates must demonstrate capabilities in handling large-scale distributed systems.

Qualifications

• 8+ years of hands-on development experience in Java.
• Experience in optimizing large-scale data systems.
• Hands-on exposure to DDD, middleware platforms, and CI/CD is preferred.

Responsibilities

• Develop backend systems for the company's centralized exchange.
• Design architectures for complex payment-related systems.
• Contribute to technical reviews and assessments.

Skills

Java and its ecosystem

Large-scale data aggregation

System refactoring

Spring Cloud Alibaba

MyBatis

Redis

RabbitMQ

RocketMQ

SkyWalking

CEX experience

Education

Bachelor’s degree in Computer Science or related field

Job description

Hong Kong

Responsibilities

• Participate in the development of backend systems for the company’s centralized exchange (CEX), providing technical support for core business operations.
• Design architectures for complex future payment-related systems; demonstrate strong capabilities in designing large-scale distributed systems while ensuring high-quality architecture that balances development, operational, maintenance, and reliability costs.
• Contribute to solution design and technical reviews for key engineering projects; conduct quality assessments, identify issues during system iteration, and help enhance team efficiency and development quality.
• Lead research and resolution of critical technical challenges, ensuring stability of the core systems.
• Participate in core architecture implementation, write high-quality code, train and guide developers, and help standardize engineering processes.
• Lead the design, development, and innovation of real-time computing systems.
• Drive the architectural evolution of the trading matching engine (handling tens of millions to hundreds of millions of daily requests).
• Lead the development of rule engines, variable platforms, and other mid-platform (middleware) systems.

Requirements

• Bachelor’s degree in Computer Science or related field; expert-level proficiency in Java and its ecosystem, with 8+ years of hands‑on development experience.
• Experience in developing and optimizing large-scale data aggregation, query, and computation systems.
• Experience with large-scale system refactoring; hands‑on exposure to DDD, middleware platforms, and CI/CD is a strong plus.
• Deep understanding of Java-related frameworks such as Spring Cloud Alibaba, MyBatis—their design principles and internal mechanisms; strong knowledge of transactions and distributed transactions.
• Proficient in Redis and at least one MQ technology such as RabbitMQ or RocketMQ; familiarity with middleware such as SkyWalking, CAT, and scheduling/orchestration systems.
• Experience building or promoting core frameworks in large-scale companies is preferred.
• Familiar with common networking issues and capable of effective troubleshooting.
• CEX experience is mandatory.