COBOL/JCL/DB2 SME - 26-16457

Title: COBOL/JCL/DB2 SME
Duration: 9-12 Months (No benefits)
Location: Remote (some onsite in Jefferson City, MO)

Job Summary:
Senior mainframe developer and subject-matter expert on a COBOL, JCL, and DB2 z/OS code base supporting a data warehouse modernization program.

Responsibilities:

1. Analyze existing COBOL programs, JCL job streams, DB2 z/OS tables, and VSAM files feeding the data warehouse.
2. Extract and document business rules, working with the Business Analyst and using tool-assisted code analysis.
3. Develop and modify COBOL/JCL programs and DB2 SQL for approved changes and data extracts.
4. Tune DB2 z/OS performance (EXPLAIN, access paths, indexing) and batch run times.
5. Unit, system, and regression test mainframe changes; resolve abends and batch failures.
6. Support reconciliation, parallel runs, cutover, and knowledge transfer to client staff.

Required Qualifications:

• 7+ years of full SDLC, with 7+ years of QA testing.
• 7+ years each in:
  • COBOL
  • JCL
  • DB2 z/OS with performance tuning
  • SQL
  • Batch processing
  • System/unit testing
• C# .NET experience (at least integration-level).
• Azure DevOps (ADO).

Preferred Qualifications:

• VSAM; payroll and accounting applications on mainframe.
• Experience with CGI Advantage or another government mainframe ERP.
• Mainframe modernization or data migration projects.