Mainframe specialist H / F / X

We are looking for an experienced Mainframe Systems Engineer to join our client's team and ensure the stability, security, and performance of mission-critical environments.

You will be responsible for managing and optimizing z / OS, CICS, IBM MQ, and IMS subsystems, while driving automation and compliance in a high-availability setting.

We are looking for an experienced Mainframe Systems Engineer to join our client's team and ensure the stability, security, and performance of mission-critical environments.

You will be responsible for managing and optimizing z / OS, CICS, IBM MQ, and IMS subsystems, while driving automation and compliance in a high-availability setting.

Key Responsibilities :

• Install, configure, upgrade, and maintain z / OS, CICS, IBM MQ, and IMS software in line with enterprise standards and lifecycle best practices.
• Apply PTFs and APARs, manage patching and tuning to keep systems secure and up-to-date.
• Troubleshoot and resolve complex infrastructure issues, including dump analysis, performance tuning, and escalated incident support.
• Customize subsystem parameters and manage regions, started tasks, queue managers, and address spaces for CICS, MQ, and IMS.
• Automate operational tasks using JCL, REXX, and CLIST for monitoring, administration, and recovery.
• Collaborate with application, database, and network teams to ensure seamless integration of middleware and core platform components.
• Implement robust security and compliance measures (e.g., RACF, SOX, PCI-DSS).
• Participate in disaster recovery drills and infrastructure tests to maintain business continuity.
• Maintain accurate documentation for system configurations, procedures, and change management activities.

What We're Looking For :

Nice to Have :