Mainframe Developer

Mainframe Developer

Location: Chicago, IL - 100% Onsite
Duration: 6 months (contract)
Experience

Required:

8 10+ years

We are seeking an experienced Mainframe Developer to design, develop, maintain, and enhance applications on the IBM Mainframe z/OS platform. The role requires strong expertise in COBOL, JCL, DB2, and SAS, along with hands‑on experience using key mainframe utilities and diagnostic tools.

• Develop, enhance, and maintain mainframe applications using COBOL, JCL, DB2, and SAS
• Analyze business requirements and translate them into efficient technical solutions
• Perform code reviews, debugging, and performance tuning using tools such as Fault Analyzer and File Manager
• Manage and maintain source code using PANVALET and related utilities
• Ensure adherence to coding standards, security guidelines, and best practices

• Strong hands‑on experience with COBOL, JCL, DB2, and SAS
• Ability to read and analyze SAS programs
• Proficiency with mainframe utilities and tools including PANVALET, Fault Analyzer, and File Manager
• Solid understanding of batch and online processing in mainframe environments
• Experience working on IBM Mainframe z/OS operating systems
• Ability to analyze complex systems and troubleshoot issues efficiently
• Strong communication and documentation skills

• Experience in mid‑scale enterprise environments
• Knowledge of performance tuning and optimization for DB2 and SAS applications
• Familiarity with Agile or hybrid development methodologies
• Exposure to modernization or migration initiatives

• Operating System: IBM Mainframe z/OS
• Development & Diagnostic Tools: PANVALET, DB2 Platinum, QMF, Fault Analyzer, File Manager
• Core Technologies: COBOL, JCL, DB2, SAS