Senior Linux Systems Engineer - HA & Automation

Hong Kong Exchanges and Clearing Limited (HKEX); 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. The role involves virtualization and private cloud exposure, ensuring high availability for critical systems and collaborating with application and infrastructure teams in Hong Kong.

You will contribute to automation, change and incident management, and document technical procedures to support daily operations and continuous improvement within HKEX’s IT

Qualifications

• 8+ years of direct, hands-on RHEL administration.
• Advanced knowledge of system tuning and troubleshooting.
• Experience with enterprise virtualization and private cloud platforms (VMware, OpenStack).

Responsibilities

• Partner with 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, 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.
• Coordinate with data centre operations and vendors for infrastructure issues.
• Collaborate with cyber security and project teams to adopt modern technologies.

Skills

RHEL administration

Bash scripting

Linux performance tuning

Automation (Ansible)

Incident & change management

Education

Bachelor's degree in CS/IS/IT

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. The role involves virtualization and private cloud exposure, ensuring high availability for critical systems and collaborating with application and infrastructure teams in Hong Kong.

You will contribute to automation, change and incident management, and document technical procedures to support daily operations and continuous improvement within HKEX’s IT