Sr. Mainframe Developer – PD Tools Specialist

Job Title : Sr. Mainframe Developer PD Tools Specialist

Location : United States (Remote / Hybrid / Onsite) Experience Level : Senior (7+ years)

Client- IBM

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

7+ 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 :

o IBM Fault Analyzer

o IBM Debug Tool

o IBM Application Performance Analyzer

o 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.