Java Backend Engineer — Trading & Clearing Systems

GTS Consulting; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

GTS Consulting in Hong Kong is seeking a Java Developer to design, develop, and deliver robust back-end systems for trading and clearing. You will work on core workflows, ensuring stability and reliability in fast-paced financial environments.

The role involves refining modules for scalability, optimizing performance, and implementing deployment, monitoring, and operational automation on Linux. You will contribute to design specs and runbooks while improving overall engineering quality.

Qualifications

• Proficient in Java and back-end development for trading systems.
• Experience with Linux environments and deployment automation.
• Strong understanding of performance tuning, concurrency, memory management, and SQL optimization.

Responsibilities

• Design, develop, and iteratively deliver back-end systems for trading and clearing, ensuring stability and reliability of core business workflows.
• Participate in the development and refactoring of core business modules, continuously improving system scalability, maintainability, and overall engineering quality.
• Drive system performance optimisation and governance, including concurrency handling, threading models, memory/GC management, database access, and SQL optimisation, to meet low-latency and high-throughput requirements.
• Participate in production environment operational support, including release/rollback management, configuration and change management, capacity planning, incident response, and post-mortem reviews (RCA), driving continuous stability improvements.
• Perform deployment, troubleshooting, and operational automation on Linux-based environments; develop and maintain scripts and scheduled tasks to enhance delivery and operational efficiency.
• Contribute to the development of monitoring, alerting, and logging systems, refining key metrics and alerting policies to improve issue detection, diagnosis, and recovery efficiency.
• Create and maintain technical documentation, including design specifications, API documentation, runbooks, and contingency plans, promoting the adoption of best practices.

Skills

Java

Backend development

SQL

Linux

Performance optimization

System design

Job description

GTS Consulting in Hong Kong is seeking a Java Developer to design, develop, and deliver robust back-end systems for trading and clearing. You will work on core workflows, ensuring stability and reliability in fast-paced financial environments.

The role involves refining modules for scalability, optimizing performance, and implementing deployment, monitoring, and operational automation on Linux. You will contribute to design specs and runbooks while improving overall engineering quality.