Sysplex Developer

Role: Sysplex developer / mainframe specialist Experience: 7+years Work mode: Onsite Location: Basildon Key Responsibilities Development Responsibilities • Design, develop, and maintain tools/utilities for IBM Parallel Sysplex environments. • Develop automation scripts and system utilities using: • REXX • JCL • COBOL • PL/I • Assembler (preferred) • Build and support utilities for: • system monitoring • workload balancing • batch automation • resource sharing • operational support • Work with Sysplex technologies including: • XCF • Coupling Facility • JES2/JES3 • RACF • SDSF • RMF/SMF • Support integrations with DB2, CICS, IMS, MQ, and related mainframe subsystems. • Perform debugging, troubleshooting, and performance tuning of system-level applications and utilities. • Support enhancement and modernization initiatives for legacy mainframe applications. Testing Responsibilities • Design and execute functional, integration, regression, failover, and performance testing. • Validate Sysplex high-availability and disaster recovery capabilities. • Perform testing for cross-system communication and workload distribution. • Analyze system logs, dumps, traces, and RMF/SMF reports. • Support automated testing and validation of Sysplex utilities and operational tools. • Identify defects, perform root cause analysis, and coordinate remediation activities. Production Support & Operations • Provide Level 2/Level 3 support for Sysplex tools and applications. • Troubleshoot: • Sysplex communication failures • Coupling Facility issues • JES failures • performance bottlenecks • batch processing failures • Support production deployments, release management, and maintenance activities. • Participate in DR drills, business continuity testing, and system upgrades.