Application Support - Trading Systems

IO TECH SOLUTIONS LIMITED; Hong Kong; On-site; HKD 600,000 - 900,000; Full time

Job summary

IO TECH SOLUTIONS LIMITED is seeking an experienced EQD Key System Support Engineer to support and enhance our FO–MO ecosystem built around in-house systems. This role covers ongoing production support, monitoring, incident troubleshooting, and delivering enhancements to core trading components.

You will provide 24x7 or defined shift coverage, perform health checks, investigate production issues, and collaborate with stakeholders to gather requirements and improve runbooks and documentation.

Qualifications

• Solid hands-on experience with Linux environments and troubleshooting.
• Experience writing Bash scripts and Python is a plus for automation.
• Strong SQL skills for data validation and investigation.

Responsibilities

• Provide 24x7 or defined shift support for the EQD Key System and in-house systems.
• Monitor application health and investigate production incidents.
• Troubleshoot across Calypso components, in-house interfaces, and OS/network behavior.
• Implement enhancements for FO–MO workflows and downstream integrations.
• Investigate production issues impacting functional flows and collaborate with stakeholders.
• Maintain runbooks, escalation procedures, and knowledge base; participate in RCA.

Skills

Linux & Command Line

Scripting Bash/Python

SQL

Job description

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 baseby 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