# Mainframe Professional

**Company**: HKEX
**Location**: TKO
**Experience**: senior
**Job type**: full-time
**Category**: IT
**Industry**: Finance

**Apply**: https://hkex.wd3.myworkdayjobs.com/en-US/HKEXCareerPage/job/HK-TKO-5F/Systems-Engineer--Mainframe----Associate---Critical-Services-Support---IT---12-months-Contract_R004607?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_2cab53dc-c10

## Description

We are seeking 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.

Key responsibilities include:

- Supporting mission-critical IBM Z environments requiring high availability, high throughput, and effective CPU-capacity management

- Administering IBM Z infrastructure and core software, including z/OS, Db2 for z/OS, CICS Transaction Server, and IBM MQ

- Supporting 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

- Performing configuration, security setup, patching, upgrades, backup and recovery, performance tuning, stress testing, and capacity planning

- Providing database administration, implementation support, and performance analysis to application teams

- Partnering with application, infrastructure, information security, and operations teams to integrate the platform and deliver reliable production services

- Resolving complex incidents and recurring problems, and managing incidents, problems, changes, and releases through ServiceNow

- Implementing compliance requirements, reviewing controls, identifying vulnerabilities, and coordinating remediation while maintaining technical and recovery documentation

- Advising on platform architecture and database configuration, and managing vendors and delivery partners to ensure quality and timely delivery

Requirements:

- 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

- Strong analytical and problem-solving skills, with a proactive, accountable, and collaborative working style

- Effective interpersonal, stakeholder-management, documentation, and presentation skills

## Skills

### Required
- IBM Z
- z/OS
- Db2 for z/OS
- CICS Transaction Server
- IBM MQ
- BMC AMI
- Broadcom mainframe software
- CA 1 Tape Management
- CA 7 Workload Automation
- Endevor Software Change Manager
- ServiceNow

### Nice to have
- VTL architecture
- third-party mainframe storage-management or application-development software
- disciplined IT service management processes

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Source: [Apply at hkex.wd3.myworkdayjobs.com](https://hkex.wd3.myworkdayjobs.com/en-US/HKEXCareerPage/job/HK-TKO-5F/Systems-Engineer--Mainframe----Associate---Critical-Services-Support---IT---12-months-Contract_R004607?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)