Systems Engineer (Mainframe) - Associate - Critical Services Support - IT - 12 months Contract

Company Introduction: 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: "To Connect, Promote and Progress our Markets and the Communities they support for the prosperity of all." Job Summary: We are looking for an experienced mainframe professional to support the stability, resilience and performance of HKEX’s mission-critical IBM Z platform. Working with infrastructure, application and vendor teams, the role covers platform administration, technical implementation, operational support, security and control, performance management, and continuous service improvement. Job Duties: Support mission-critical IBM Z environments requiring high availability, high throughput and effective CPU-capacity management. Administer IBM Z infrastructure and core software, including z/OS, Db2 for z/OS, CICS Transaction Server and IBM MQ, plus related development, performance, connectivity, VTL and distributed-platform services. Support BMC AMI storage-management and application-development software, including StopX37, and Broadcom mainframe software such as CA 1 Tape Management, CA 7 Workload Automation and Endevor Software Change Manager, from installation and maintenance through optimisation, troubleshooting and vendor coordination. Perform configuration, security setup, patching, upgrades, backup and recovery, performance tuning, stress testing and capacity planning. Provide database administration, implementation support and performance analysis to application teams. Partner with application, infrastructure, information security and operations teams to integrate the platform and deliver reliable production services. Resolve complex incidents and recurring problems, and manage incidents, problems, changes and releases through ServiceNow. Implement compliance requirements, review controls, identify vulnerabilities and coordinate remediation while maintaining technical and recovery documentation. Advise on platform architecture and database configuration, and manage vendors and delivery partners to ensure quality and timely delivery. Job Requirement: Bachelor’s degree in Computer Science, Information Systems, Information Technology or a related discipline. At least 7 years of hands-on experience supporting IBM Z environments, with strong practical experience across core operating system, database, transaction-processing and messaging technologies. Proven experience supporting mission-critical, high-availability and high-performance IBM Z platforms. Practical experience in system administration, troubleshooting, performance management, security controls, patching, upgrades, backup and recovery. Experience with VTL architecture and major third-party mainframe software covering tape management, workload automation, software change management, storage management or application development is an advantage. Experience supporting third-party mainframe storage-management or application-development software is an advantage. Experience working within disciplined IT service management processes is an advantage. Strong analytical and problem-solving skills, with a proactive, accountable and collaborative working style. Effective interpersonal, stakeholder-management, documentation and presentation skills. 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. Location: HKEX - TKO Shift: Standard - 40 Hours (Hong Kong SAR) Scheduled Weekly Hours: 40 Worker Type: Contract