Mainframe System Administrator (z/OS
Job in
Singapore, Singapore
Listed on 2026-08-07
Listing for:
Innova Digital Solutions Pte Ltd
Full Time
position Listed on 2026-08-07
Job specializations:
-
IT/Tech
Systems Administrator, IT Infrastructure, Systems Engineer, Disaster Recovery IT
Job Description & How to Apply Below
Location: Singapore
Employment Type: Contract
Experience
Required:
6+ Years
We are hiring an experienced Mainframe System Administrator (z/OS) to support and manage enterprise mainframe infrastructure within a leading banking environment. The ideal candidate will have strong expertise in IBM Mainframe technologies, system administration, infrastructure support, and production environments.
Key Responsibilities- Administer and support IBM Mainframe z/OS infrastructure.
- Manage and maintain CICS
, IBM MQ
, and related mainframe subsystems. - Install, configure, upgrade, and support IBM and third-party mainframe system software.
- Manage zSeries hardware, storage infrastructure, SAN, disk, and tape systems.
- Perform system monitoring, troubleshooting, performance tuning, and capacity planning.
- Plan, implement, and support infrastructure changes, maintenance, and upgrades.
- Provide Level 3 production support and resolve complex technical issues.
- Participate in infrastructure projects, system implementation, and migration activities.
- Maintain platform security, risk controls, audit compliance, and operational documentation.
- Develop and maintain host platform architecture, roadmap, and technology strategy.
- Diploma or Degree in Computer Science or a related discipline.
- Minimum 6 years of hands-on experience in Mainframe System Administration.
- Experience in a Banking or Financial Services environment is highly preferred.
- Strong knowledge of:
- IBM z/OS
- TSO
- JES2
- ISPF
- RACF
- JCL
- CICS
- IBM MQ
- Experience with IBM zSeries hardware, SAN, disk storage, and tape management.
- Strong troubleshooting, production support, and system administration skills.
- Excellent communication and stakeholder management abilities.
- Mainframe infrastructure project experience.
- Performance tuning and capacity planning.
- Change management and production support.
- Audit, risk, and compliance exposure.
Only Singapore Citizens and Singapore Permanent Residents (PRs) will be considered for this opportunity.
If you have a strong Mainframe infrastructure background and are looking for an exciting opportunity within the banking sector, we'd love to hear from you.
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