Senior Linux Systems Engineer - HA & Automation

Robert Half Hong Kong Limited; Hong Kong; On-site; HKD 900,000 - 1,350,000; Full time

Job summary

Robert Half Hong Kong Limited seeks an experienced IT infrastructure professional to join our operations team. You will manage RHEL environments, optimize system performance, and automate routine tasks to improve reliability of critical financial systems.

Working with application groups and vendors, you will drive change management, incident response, patching, and security hardening. This role offers on-call production support and collaboration across cyber security, virtualization, and private

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).
• Familiarity with automation tools (Ansible).
• Experience managing change implementation on large scale systems.
• Good team player with passion to learn and career development in the financial industry.

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 including impact assessments, troubleshooting and remediation.
• 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 cyber security/infrastructure engineering and project teams to adopt modern technologies, such as multi-cloud and container orchestration.

Skills

RHEL administration

System tuning

Troubleshooting

Bash scripting

Enterprise virtualization

Private cloud (VMware/OpenStack)

Automation (Ansible)

Change management

Team collaboration

Education

Degree in Computer Science/Information Systems/IT

Tools

VMware

OpenStack

DCS

HCS

Ansible

Job description

Robert Half Hong Kong Limited seeks an experienced IT infrastructure professional to join our operations team. You will manage RHEL environments, optimize system performance, and automate routine tasks to improve reliability of critical financial systems.

Working with application groups and vendors, you will drive change management, incident response, patching, and security hardening. This role offers on-call production support and collaboration across cyber security, virtualization, and private