Senior Linux Systems Engineer - Critical Infra & Multi-Cloud

Hong Kong Exchanges & Clearing Ltd; Hong Kong; On-site; HKD 700,000 - 1,000,000; Full time

Job summary

Hong Kong Exchanges & Clearing Ltd is seeking a Linux Senior Systems Engineer – Associate to support Critical Services. The role focuses on Linux platform administration, virtualization, and private cloud environments, partnering with application and infrastructure teams to ensure high availability for essential trading systems.

You will implement system tuning, automation with Ansible, incident management, patching, and security hardening, while contributing to capacity planning and multi-cloud

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.
• 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

RHEL administration

Linux administration

Scripting Bash

VMware

OpenStack

Container orchestration

Cloud technologies

Incident management

Education

BSc in Computer Science

Tools

Ansible

Job description

Hong Kong Exchanges & Clearing Ltd is seeking a Linux Senior Systems Engineer – Associate to support Critical Services. The role focuses on Linux platform administration, virtualization, and private cloud environments, partnering with application and infrastructure teams to ensure high availability for essential trading systems.

You will implement system tuning, automation with Ansible, incident management, patching, and security hardening, while contributing to capacity planning and multi-cloud