Mainframe Developer (PD Tools Specialist)

Position: Mainframe Developer (PD Tools Specialist)

Location: Remote

Duration: Long term contract

Summary:

• We are looking for Senior Mainframe Developers with deep expertise in IBM Problem Determination (PD) Tools to support complex application debugging, performance tuning, and production issue analysis.
• The ideal candidates will have a strong background in COBOL, JCL, DB2, and mainframe utilities, combined with hands-on experience using IBM's PD Tools suite (Fault Analyzer, Debug Tool, APA, File Manager).
• Key Responsibilities Diagnose and resolve abends using IBM Fault Analyzer, creating detailed findings and recommendations.
• Perform source-level debugging with IBM Debug Tool for z/OS to resolve logic, data, and runtime issues.
• Conduct performance analysis and tuning using IBM Application Performance Analyzer (APA).
• Use IBM File Manager to analyze, browse, edit, and validate datasets (VSAM, QSAM, DB2).
• Participate in root cause analysis, code remediation, and long-term fix strategy.
• Support production and non-production environments, including batch and online (CICS) applications.
• Troubleshoot system dumps, logs, job failures, and performance bottlenecks.
• Collaborate with cross-functional teams (QA, operations, architects) throughout the SDLC.
• Document technical findings, process improvements, and best practices.
• Required Skills & Experience 10+ years of hands-on IBM Mainframe development experience.
• Strong expertise in COBOL, JCL, VSAM, DB2, and utilities (IDCAMS, SORT, ISPF).

Proven experience with the following PD Tools:

• IBM Fault Analyzer IBM Debug Tool IBM Application Performance Analyzer IBM File Manager In-depth understanding of common abends (S0C7, S0C4, Uxxxx codes) and dump analysis.
• Experience supporting large-scale enterprise applications in production.
• Strong debugging, analytical, and performance optimization skills.