Linux Senior Systems Engineer - Associate - Critical Services Engineering - IT

Hong Kong Exchanges & Clearing Ltd; Hong Kong; On-site; HKD 600,000 - 1,000,000; Full time

Job summary

Hong Kong Exchanges & Clearing Ltd is seeking a Linux Senior Systems Engineer to support administration and virtualization infrastructure across critical IT services. The role collaborates with application and infrastructure teams to maintain high-availability systems essential to daily trading operations.

The candidate will handle incident management, patching, and system hardening while contributing to automation and modernization initiatives in a fast-paced financial markets environment in

Qualifications

• 8+ years of hands-on RHEL administration experience.
• Advanced knowledge of system tuning and troubleshooting.
• Familiarity with scripting (Bash).
• Experience with enterprise virtualization and private cloud platforms (VMware, OpenStack, DCS, HCS).
• Familiarity with automation practices and tools (Ansible).
• Experience managing changes on large-scale systems.

Responsibilities

• Provide administration and support for Linux systems and virtualization infrastructure.
• Collaborate with application and infrastructure teams to operate critical systems.
• Participate in incident and problem management, including troubleshooting and remediation.
• Prepare operation and technical documents (knowledge base, procedures, reports).
• Provide production support including on-call duties and changes per CM procedures.
• Support audit, regulatory and internal control requirements.
• Coordinate with data centre operations and vendors for infrastructure issues.

Skills

RHEL administration

System tuning

Bash scripting

Automation (Ansible)

Team collaboration

Education

Bachelor's degree in CS/IT

Tools

VMware

OpenStack

DCS

HCS

Job description

Linux Senior Systems Engineer - Associate - Critical Services Engineering - IT

We’re home to Asia's most dynamic and vibrant capital markets. Connecting capital, ideas, inspiration and innovation for deeper, more diverse and liquid global capital markets; providing greater choice and opportunity for our customers, each and every day. HKEX is a purpose-driven company. Our commitment to the long-term development of our business and our markets is articulated in our purpose: "ToConnect,PromoteandProgressour Markets and the Communities they support for the prosperity of all."

Job Summary

The Critical Service Delivery project teams are responsible for the design and build of IT infrastructure for HKEX application systems. We strive for the highest IT standard by looking out for new technologies as well as continuous internal process automation and improvement.

Job Duties

As Linux Senior Systems Engineer, you will provide support to the administration and support for the company-wise Linux systems and Virtualization infrastructure. We play a critical role to maintain these company-wise systems that are critical to daily business operation. We also partner with application and infrastructure teams to operate our systems in such fast growing financial markets in Hong Kong.

Job 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.
• 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.

Job Requirement

• Degree in Computer Science, Information System or IT related disciplines.
• 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.

HKEX is committed as an Equal Opportunity Employer. Diversity is one of our core values and we look to support, respect diverse perspectives, abilities, culture and experiences within our workplace.