ThreatXIntel
Website:
threatxintel.com
Job details:
Role Overview
We are looking for an experienced Senior Mainframe Systems Programmer to support the maintenance, enhancement, and development of IBM z/OS legacy systems within a large enterprise environment.
The consultant will be responsible for planning system upgrades, maintaining system health, optimizing performance, and supporting operating system development while ensuring compatibility between hardware, system software, and enterprise applications.
This role requires deep expertise in IBM mainframe technologies including z/OS, CICS, IMS, DB2, ADABAS, and system-level utilities.
Key Responsibilities
System Maintenance & Support
- Maintain and support IBM z/OS systems and related legacy infrastructure
- Monitor system health and ensure optimal performance
- Analyse system issues reported by development teams and recommend solutions
- Ensure compatibility between operating systems, hardware, and application software
- Manage system upgrades and hardware changes with minimal downtime
Systems Architecture & Engineering
- Plan and design mainframe system architecture
- Evaluate, select, and implement system software environments
- Install and configure compilers, assemblers, and system utilities
- Integrate hardware and software components within enterprise environments
Performance Optimization
- Monitor and tune system performance
- Evaluate new technologies impacting mainframe operating environments
- Implement improvements for reliability, efficiency, and scalability
Security & Compliance
- Ensure system software and security products are patched regularly
- Implement and maintain information security and assurance practices
- Ensure operating environments comply with organizational security policies
Testing & Implementation
- Work with development teams and customers to test applications after upgrades
- Participate in implementation and rollout of new system software
- Provide technical guidance for complex system software modifications
Required Technical Skills
Mainframe Platforms
- IBM z/OS
- IMS (DB/DC)
- DB2
- ADABAS
- CICS
System Programming & Tools
- SMP/E
- JCL
- Assembler, COBOL, REXX
- CONTROL-M
- VTAM
- TCP/IP
- NETVIEW
Additional Technologies
- NATURAL / SUPERNAT
- ENTIREX
- CA SPOOL
- IMS & DB2 BMC Tools
- HMC / HOD / IODF
- VTS
Additional Required Skills
- z/OS
- HCD
- z/OSMF
- z16 / z17 hardware
- CA ACF2 V17
- HOD V16.1
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