Senior Linux Systems Engineer — Critical Services

Hong Kong Exchanges and Clearing Limited; Hong Kong; On-site; HKD 600,000 - 900,000; Full time

Job summary

Hong Kong Exchanges and Clearing Limited (HKEX) is seeking a Linux Senior Systems Engineer to lead Linux platform administration and operations, with exposure to virtualization and private cloud environments. You will partner with application teams to ensure stable, secure systems that support daily financial market activities in Hong Kong.

The role requires hands-on RHEL expertise, automation skills (Ansible), and a strong focus on incident management, patching, and high availability.

Qualifications

• Degree in Computer Science, Information System or IT related disciplines.
• Minimum 8 years of direct, hands-on RHEL administration experience.
• Advanced knowledge of System tuning and troubleshooting.
• Familiarity with scripting (Bash).
• Experience with enterprise virtualization and private cloud platforms (e.g., VMware, OpenStack, DCS, HCS)
• Familiarity with Automation practices and tools (Ansible).
• Experience of managing change implementation on large scale systems.
• Good team player with passion to learn and aspirations for career development in the financial industry.

Responsibilities

• Partner with the application teams on IT solution configuration and review.
• Interact with internal and external parties on planning and execution.
• Play a role in incident and problem management such as impact assessments, troubleshooting and remediation and prevention.
• Compile operation and technical documents such as knowledge base, technical procedures and test reports.
• Handle BAU processes automation
• Provide production support including on-call duties when required
• Execute changes in accordance with change management procedures
• Support mission-critical systems with high availability requirements
• Manage patching, vulnerability remediation, and system hardening.
• Support audit, regulatory and internal control requirements.
• Coordinate with data centre operations and vendors for infrastructure issues.
• Collaborate with the Cyber security/infrastructure engineering and project teams to adopt modern technologies, such as multi-cloud and container orchestration, to enhance manageability.

Skills

Linux administration

Scripting Bash

System tuning

Troubleshooting

Team collaboration

Education

Degree in Computer Science, Information System or IT related disciplines

Tools

VMware

OpenStack

DCS

HCS

Ansible

Job description

Hong Kong Exchanges and Clearing Limited (HKEX) is seeking a Linux Senior Systems Engineer to lead Linux platform administration and operations, with exposure to virtualization and private cloud environments. You will partner with application teams to ensure stable, secure systems that support daily financial market activities in Hong Kong.

The role requires hands-on RHEL expertise, automation skills (Ansible), and a strong focus on incident management, patching, and high availability.