Mainframe Data Center Support Specialist / Mainframe Data Center Support Specialistess

Job Title: Onsite Engineer

Location: Zürich

Working Hours: Onsite presence from 07:00 to 17:00 (10 hours) during weekdays in two different datacenters.

Responsibilities

• Provide onsite hardware support during business hours and participate in a 24/7 on-call rotation.
• Offer ad-hoc support during nights and weekends when required.
• Attend daily hardware team meetings and manage incident tickets and work orders.
• Perform daily checks on logical and physical hardware status.
• Deliver 2nd-level mainframe hardware support and smart hands assistance (cabling, SFPs, tape media).
• Coordinate vendor activities, manage datacenter access, and escort technicians on-site.
• Plan and coordinate hardware and material deliveries, transport, and spare parts inventory.
• Support Business Continuity Planning (BCP) recovery activities and act as evacuation delegate.
• Assist with proactive maintenance and microcode management, including planning and vendor coordination.
• Participate in installation/change meetings, raise RFCs, update work orders, and monitor hardware installations.
• Perform cabling tasks, channel mapping, asset labeling, and media disposal support.
• Handle incident lifecycle: receive, classify, diagnose, resolve, and document incidents.
• Escalate incidents functionally or hierarchically as needed, in line with SLA requirements.
• Identify and manage hardware-related problems, initiate diagnosis, and track vendor progress.
• Contribute to root cause analysis, improvement suggestions, and handover to quality management.

Required Skills

• Several years of hands-on experience in z/OS Multisite Sysplex environments (MVS, JES3, TSO, Syslog, EREP, REXX, etc.).
• Strong knowledge of z/OS hardware peripherals including z15/z16 CEC, Coupling Facility, DASD, VTS, FICON Directors, and DWDM.
• Ability to assess and debug complex hardware failures and determine root causes.
• Familiarity with switch hardware, preferably Brocade in DWDM environments; experience with IOGEN is a plus.
• Independent, proactive work style with a positive attitude and strong problem-solving mindset.
• Team-oriented with customer-focused thinking and the ability to work reliably and autonomously.
• Fluency in German and proficiency in English (both are mandatory).

Apply online using the form below. Only applications matching the job profile will be considered.