Nelnet is seeking experienced Mainframe Developers to support a state workforce agency's initiative to expand Unemployment Insurance (UI) Account Numbers from 6 to 9 digits. This role involves modifying legacy COBOL applications, CICS screens, DB2 schemas, and batch jobs to accommodate the expanded field size, ensuring seamless integration across systems and minimal disruption to operations.
Requirements
- Minimum 5 years of experience in mainframe development.
- Proficiency in: COBOL (batch and online)
- Proficiency in: CICS (transaction processing and web services)
- Proficiency in: DB2 (SQL, stored procedures, schema updates)
- Proficiency in: JCL (Job Control Language)
- Proficiency in: VSAM, GDG, and flat file handling
- REXX Scripting (desired, not required)
Responsibilities
- Analyze COBOL programs, CICS transactions, DB2 tables, and JCL scripts to identify and implement necessary changes for account number expansion.
- Update field definitions, linkage areas, and screen layouts to support 9-digit account numbers.
- Recompile affected programs and rebind DB2 packages as needed.
- Conduct developer unit testing and support user acceptance testing (UAT).
- Collaborate with cross-functional teams to ensure consistent implementation across all impacted systems.
- Document technical changes and participate in peer reviews.
- Support deployment planning and post-implementation activities.
Other
- This is a contract position contingent upon project needs.
- Attention to detail and strong analytical skills.
- Excellent documentation and communication abilities.
- Experience working in Agile or Kanban environments.
- Ability to collaborate with internal and external stakeholders, including agency developers.
