We are seeking dedicated Mainframe professional's with deep technical expertise in a z15 z/OS environment to join our client's dynamic team. Whether your strength lies in robust system administration, hands-on application development and maintenance, or specialised Java programming for mainframe applications, we have opportunities for you to drive innovation and ensure the stability of our essential platforms.
Key Responsibilities
* Core Mainframe Operations & Support: Provide 24x7 operational and technical support, including master console operations, in-depth problem ticket analysis, troubleshooting, and resolution. Conduct operational monitoring, alerting, and tuning to ensure system stability.
* System Administration & Maintenance: For those with a focus on system administration, you will lead software maintenance (patching/upgrading), apply SMP/E skills, and proactively provide innovative solutions for the z/OS environment.
* Application Development & Support: For those specialising in application maintenance, you will be highly skilled in Adabas/Natural applications maintenance and support, with proven expertise in surrounding software technologies like schedulers, transaction processors, and middleware.
* Mainframe Java Programming: For Java specialists, you will maintain and optimise existing Mainframe Java applications, conduct testing, and provide end-user support for legacy systems, including system improvement and incident/problem resolution.
* Collaboration & Innovation: Across all specialisations, you will proactively provide innovative solutions in accordance with modern technologies, build and maintain relationships with various levels of stakeholders, and contribute to a culture of continuous improvement.
Technical Environment & Expertise
Candidates should possess expertise in a z15 z/OS environment, specifically with:
* Operating System: z/OS
* DB/Languages: Adabas/Natural, JCL, Java (for Java specialists), SAS, REXX (for automation).
* Transaction Processors: TSO, NIM.
* Middleware: MQ, Datastream, RPC, Corba.
* Monitoring & Operations: XYMON, MXG, VPS/NIMSPL.
* Scheduler/Batch: CA-11/Jobtrac.
* Security: RACF, Natural security.
* Source Code Management: N20.
* Storage/Backup: Hitachi VPS5100, CA-1 (Tape Management).
* Modern Practices: Ability to adapt to New Ways of Working (NWoW) techniques with Agile practices (JIRA, Confluence, Kanban, SPRINT, etc.).
Required Experience:
* A minimum of 10+ years of proven experience supporting mainframe environments.
* Demonstrated technical expertise in mainframe environment software migration and maintenance processes.
* Solid knowledge of z-platform and z/OS technologies in terms of hardware and operating systems.
* Strong application control of mainframe architecture, middleware, and tooling.
* Solid exposure to batch technology from both a support and technical development perspective.
Clearance Requirement:
Applicants must possess an active NV1 AGSVA clearance.
At Randstad Digital, we are passionate about providing equal employment opportunities and embracing diversity to the benefit of all. We actively encourage applications from any background.
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