Senior Trading System Support Engineer
About the role
Senior Trading System Support Engineer supporting a Chinese-funded securities firm in Hong Kong. This role will support the firm's Hong Kong and global securities and futures trading systems, covering daily operations and maintenance, advanced technical support, system architecture optimization, disaster recovery drills, and collaboration with exchanges such as HKEX and system vendors. The successful candidate will help ensure high availability and business continuity of the trading platforms.
Key responsibilities
Coordinate with vendors (Fidessa, iAsia, eSunny) on upgrades, hotfixes, performance/UAT testing and production changes
Prepare and execute HKEX/overseas exchange market rehearsals, mandatory drills and BCP/DR failover tests
Drive automation for health checks, monitoring/alerting and operational tools using Python/Shell
Act as L2/L3 escalation for complex trading incidents, network dropouts and market data anomalies
Run morning pre-market checks, market-hours monitoring, troubleshooting and EOD settlement support across securities, options and futures
Maintain trading gateways, HKEX OMD/market data feeds, FIX connectivity and third-party APIs
Support Trading Desk, Middle/Back Office and Risk; handle technical issues and requirements
Manage vendors, market data providers and telecom operators; support SFC/HKEX audits and compliance
Participate in architecture tuning and fault-tolerance improvement
About you
Bachelor's/Master's in Computer Science, IT, Financial Engineering or related
At least 5-10 years in trading system operations or advanced technical support at HK financial institutions
Strong understanding of HK/global securities, futures and options workflows: order routing, clearing, settlement, risk control, market data
Hands-on with Fidessa OMS/EMS; iAsia and/or eSunny futures platforms
Knowledge of HKEX trading/market data architecture: OCG, OMD, VCM/CAS
Linux/Unix, SQL, Shell/Python automation
Fluent Mandarin or Cantonese; functional English for technical communication
Strong pressure handling, logical analysis and fast troubleshooting