Senior Trading Systems Ops & Reliability Engineer

CGS International Holdings Limited; Hong Kong; On-site; HKD 700,000 - 1,100,000; Full time

Job summary

We are seeking a Senior Trading System Support Engineer to join our IT team in Hong Kong. The role focuses on daily operation, system maintenance, and advanced technical support for our securities and futures trading platforms, ensuring high availability and business continuity across global markets.

You will manage Fidessa OMS/EMS, iAsia, and eSunny platforms, perform pre-market health checks, monitor market activity, and assist with DR/BCP testing and vendor collaborations, including HKEX and

Qualifications

• Bachelor’s or Master’s degree in CS/IT/financial engineering or related.
• 5+ years in trading system ops or advanced tech support in HK.
• Deep understanding of trading workflows across HK/global markets.
• Proficiency with Fidessa, iAsia, and eSunny and HKEX market data architecture.

Responsibilities

• Perform pre-market health checks, market-hours monitoring, and EOD support across core trading systems.
• Escalate and resolve complex trading incidents and data anomalies.
• Manage Fidessa, iAsia, and eSunny platforms and integrations.
• Coordinate with vendors on upgrades, testing and deployments.
• Assist with DR/BCP testing and regulatory/compliance reviews.

Skills

Trading operations

Advanced technical support

Python scripting

Shell scripting

Linux/Unix admin

SQL querying

Vendor coordination

Regulatory compliance awareness

Education

Bachelor’s degree in Computer Science / IT / Financial Engineering

Master’s degree (preferred)

Tools

Fidessa OMS/EMS

iAsia Front-to-Back

eSunny futures platform

HKEX OCG gateway

OMD market data feed

VCM/CAS mechanisms

FIX engine/connectivity

Job description

We are seeking a Senior Trading System Support Engineer to join our IT team in Hong Kong. The role focuses on daily operation, system maintenance, and advanced technical support for our securities and futures trading platforms, ensuring high availability and business continuity across global markets.

You will manage Fidessa OMS/EMS, iAsia, and eSunny platforms, perform pre-market health checks, monitor market activity, and assist with DR/BCP testing and vendor collaborations, including HKEX and