About this role

Mainframe Operational Support Specialist Diverse CG Sp. z o.o. Sp.k. Daily tasks: - Handle incidents in the mainframe environment and drive their resolution - Perform problem management activities and support root cause analysis - Analyze incidents and identify corrective actions - Monitor system output using SDSF - Browse and investigate datasets using TSO/ISPF - Support defect diagnosis and resolution using Abend-AID and File-AID - Operate and monitor workloads using OPC/TWS - Work with mainframe technologies including COBOL, JCL, DB2, VSAM, CICS, IMS and Base SAS - Adapt to new tools and technologies used within the operational support environment Musts: COBOL, JCL, DB2, Base SAS, OPC/TWS, File-AID Proven experience in Incident Handling and Problem Management Strong analytical skills for incident analysis and troubleshooting Deep understanding of mainframe technologies: COBOL, JCL, DB2, VSAM, CICS, IMS Hands-on experience with Base SAS Practical knowledge of TSO/ISPF and SDSF for dataset browsing and system output monitoring Experience with OPC/TWS Experience with Abend-AID for defect investigation and resolution Experience with File-AID for defect fixing Ability to learn new tools and adapt to evolving technologies Proactive approach to problem-solving Very good command of English, both spoken and written Nice to have: Practical experience with REXX scripting and Shell scripting Practical experience with Python Understanding of distributed systems in hybrid environments Familiarity with DevOps methodologies Familiarity with Agile ways of working Experience with cloud integration and mainframe modernization initiatives Offer: Private medical care Co-financing for the sports card Constant support of dedicated consultant Employee referral program

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