Mainframe Developer

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Location : Buffalo, NY or Willington, DE

We are seeking an experienced Mainframe Developer with strong handson expertise in COBOL, JCL, and DB2 to support, enhance, and modernize enterprisescale mainframe applications. The ideal candidate will have deep experience working in highvolume batch environments, production support, performance tuning, and complex data processing workflows.

Key Responsibilities

• Design, develop, test, and maintain COBOL programs for batch and online processing.
• Write, optimize, and troubleshoot JCL for batch job execution, scheduling, and automation.
• Develop and maintain DB2 SQL queries, stored procedures, views, and performanceoptimized database objects.
• Analyze business requirements and translate them into scalable technical solutions.
• Perform impact analysis, code reviews, debugging, and rootcause analysis for production issues.
• Work closely with QA, business analysts, and crossfunctional teams to ensure highquality deliverables.
• Support batch cycles, job failures, abends, and performance tuning.
• Participate in mainframe modernization initiatives, data migration, and integration projects.
• Ensure compliance with organizational coding standards, security guidelines, and documentation practices.
  
  

Required Skills

• 8 years of handson experience with:
• COBOL (Batch & Online)
• JCL (Job Control Language)
• DB2 (SQL, Stored Procedures, Performance Tuning)
• Strong understanding of VSAM, CICS, TSO/ISPF, SDSF.
• Experience with file processing, batch scheduling tools (ControlM, CA7, or similar).
• Ability to analyze complex mainframe systems and optimize performance.
• Experience with unit testing, debugging tools, and production support.
• Strong analytical, communication, and problemsolving skills.