Sr. Mainframe Developer

2 days ago

Naperville, IL, United States AIFA Solutions Full time

Job Title: Sr. Mainframe Developer - PD Tools Specialist
Location: United States (Remote/Hybrid/Onsite)

Experience Level: Senior (7+ years)

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:
• 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.

  • UIPath - RPA Developer

    1 week ago

    Naperville, IL, United States Omni Inclusive Full time

    This position is responsible for developing, integrating, testing, and maintaining existing and new applications; knowing one or more programming languages; knowing one or more development methodologies / delivery models. To be successful in this role, a person would have strong experience with Big Data / Hadoop / Spark development. Required Job...

  • UIPath - RPA Developer

    4 days ago

    Naperville, IL, United States Omni Inclusive Full time

    This position is responsible for developing, integrating, testing, and maintaining existing and new applications; knowing one or more programming languages; knowing one or more development methodologies / delivery models. To be successful in this role, a person would have strong experience with Big Data / Hadoop / Spark development. Required Job...

  • UIPath - RPA Developer

    4 days ago

    Naperville, IL, United States Omni Inclusive Full time

    This position is responsible for developing, integrating, testing, and maintaining existing and new applications; knowing one or more programming languages; knowing one or more development methodologies / delivery models. To be successful in this role, a person would have strong experience with Big Data / Hadoop / Spark development. Required Job...

  • Java Architect

    3 days ago

    Naperville, IL, United States RIT Solutions, Inc. Full time

    Java Architect Remote Contract Must be a strong software architect that has not been too far away from the code (Java), able to work with offshore teams as well as execs to modernize a legacy mainframe application. TEAM: This managers area is 200-250 people heavily contract basis and some of these people are offshore. This resource will have an architect on...

  • Java Architect

    6 days ago

    Naperville, IL, United States RIT Solutions, Inc. Full time

    Java Architect Remote Contract Must be a strong software architect that has not been too far away from the code (Java), able to work with offshore teams as well as execs to modernize a legacy mainframe application. TEAM: This managers area is 200-250 people heavily contract basis and some of these people are offshore. This resource will have an architect on...

  • salesforce developer

    2 weeks ago

    Naperville, IL, United States Syntricate Technologies Full time

    Position-Salesforce Developer Duration-Contract Location- Naperville, IL JD Experience working with Financial services cloud. Experience in developing applications in Salesforce using Lighting Experience, Lighting Components, Visual Force, Apex, REST API, SOAP API, Streaming API, Visual Workflows, Workflow rules, Process builder, Triggers, Validation...

  • Sr. Analyst,

    2 weeks ago

    Naperville, IL, United States Oncourse Home Solutions Full time

    Who we Are Oncourse Home Solutions (OHS) is a people-centric, $500M organization that is owned by private equity firm, Apax Partners operating under the brands American Water Resources, Pivotal Home Solutions and American Home Solutions. We do what is right for our people so they can do their best when serving our 1.8+ million customers across the U.S. Our...

  • Sr. Analyst,

    2 weeks ago

    Naperville, IL, United States Oncourse Home Solutions Full time

    Who we Are Oncourse Home Solutions (OHS) is a people-centric, $500M organization that is owned by private equity firm, Apax Partners operating under the brands American Water Resources, Pivotal Home Solutions and American Home Solutions. We do what is right for our people so they can do their best when serving our 1.8+ million customers across the U.S. Our...

  • Sr. Analyst,

    3 days ago

    Naperville, IL, United States Oncourse Home Solutions Full time

    Who we Are Oncourse Home Solutions (OHS) is a people-centric, $500M organization that is owned by private equity firm, Apax Partners operating under the brands American Water Resources, Pivotal Home Solutions and American Home Solutions. We do what is right for our people so they can do their best when serving our 1.8+ million customers across the U.S. Our...

  • Sr. Analyst,

    6 days ago

    Naperville, IL, United States Oncourse Home Solutions Full time

    Who we Are Oncourse Home Solutions (OHS) is a people-centric, $500M organization that is owned by private equity firm, Apax Partners operating under the brands American Water Resources, Pivotal Home Solutions and American Home Solutions. We do what is right for our people so they can do their best when serving our 1.8+ million customers across the U.S. Our...