Mainframe Operations Engineer (zOS)

We are looking for an experienced Mainframe Operations Engineer to join a team responsible for the operation monitoring and support of critical Mainframe platforms. This role is ideal for a professional who thrives in production environments works autonomously and is passionate about ensuring system stability performance and operational excellence.

Your Responsibilities:

• Provide Level 2 operational and application support for z/OS environments.
• Monitor and supervise batch processing activities ensuring compliance with defined SLAs.
• Define schedule execute and track jobs using TWS and Control-M.
• Investigate troubleshoot and resolve incidents related to production workloads batch processing and file transfers.
• Manage Mainframe resources including datasets GDGs JES queues catalogs and disk space.
• Support and monitor file transfer processes using CFT / Connect:Express.
• Participate in production releases change activities and planned out-of-hours interventions when required.
• Act as a technical integrator collaborating with development application production and operations teams.
• Ensure adherence to DevOps best practices including automation observability security and operational quality.
• Produce and maintain operational documentation procedures and performance reporting.

Qualifications :

Your Profile:

• Proven experience in Mainframe Operations and Support roles within z/OS environments.
• Strong knowledge of JCL TSO ISPF SDSF and z/OS monitoring activities.
• Hands-on experience with workload scheduling and automation tools such as TWS (IBM Workload Scheduler) and/or Control-M.
• Solid understanding of CICS DB2 IMS and VSAM environments.
• Experience executing and analysing SQL queries in DB2/SPUFI including incident diagnosis and troubleshooting.
• Knowledge of IBM MQ / MQ Series including queue channel and messaging flow management.
• Experience with CFT / Connect:Express or similar managed file transfer solutions.
• Familiarity with ITSM tools preferably ServiceNow.
• Knowledge of monitoring and observability platforms such as Dynatrace.
• Understanding of ITIL v4 Agile methodologies and critical production environments.

Soft Skills:

• Strong communication and collaboration skills.
• Excellent analytical thinking and organizational capabilities.
• Ability to work independently and manage priorities effectively.
• Strong sense of ownership responsibility and attention to detail.
• Comfortable working in structured and business-critical environments.

Languages:

• English (B2 level minimum) is mandatory.
• French is a plus.

Additional Information :

• Workplace type: Hybrid (50% onsite 50% remote).
• Location: Parque das Nações Lisboa.

Remote Work :

No

Employment Type :

Full-time