Application Support - Trading Systems at IO TECH… · Hong Kong

About the Role

We are seeking an experienced EQD Key System Support Engineer to support and enhance our FO–MO (Front Office – Middle Office) ecosystem running on related in-house systems. This role involves ongoing production support, monitoring, issue troubleshooting, and implementing enhancements and improvements across the core trading engine and surrounding in-house components.

Key Responsibilities

• Provide 24x7 or defined shift support (as applicable) for the EQD Key System and associated in-house systems.
• Perform monitoring of application and system health; investigate and resolve incidents in production.
• Troubleshoot issues across:
  • Calypso platform components
  • In-house services interfacing
  • Underlying OS/network/system behavior
• Implement enhancements and improvements for FO–MO workflows and downstream integrations.
• Support user base by investigating production issues impacting functional flows.
• Work closely with internal stakeholders to gather requirements and deliver improvements.
• Maintain operational documentation and support runbooks, escalation procedures, and knowledge base.
• Participate in root cause analysis (RCA) and prevent recurrence through corrective actions.

Required Skills

1) Linux & Command Line

• Strong hands-on experience with Linux environments
• Proficiency using command line tools, process/network troubleshooting, logs, permissions, and file management
• Ability to understand system behavior and troubleshoot issues using Linux utilities

2) Scripting (Bash / Python)

• Practical experience with scripting for automation and troubleshooting
• Strong knowledge of Bash scripting; Python experience is a plus
• Ability to write/modify scripts for log parsing, operational tasks, job automation, and investigation support

3) SQL

• Solid understanding of SQL for data validation and troubleshooting
• Ability to write queries to investigate trade data, system states, message flows, or database inconsistencies