• IT Quality Assurance Analyst - Contract Role (AN)

    Nelnet (Highlands Ranch, CO)
    …with developers and business analysts to design and execute test plans for COBOL , CICS, DB2 , and batch components. . Perform unit, integration, regression, ... + Strong understanding of mainframe systems and testing methodologies. + Experience with: COBOL , CICS, DB2 , JCL, 3270 emulator tools (eg, OpenText Hummingbird),… more
    Nelnet (12/03/25)
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  • IT Mainframe Developer - Contract Role (AN)

    Nelnet (Breckenridge, CO)
    …(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 ... across systems and minimal disruption to operations. **JOB RESPONSIBILITIES:** + Analyze COBOL programs, CICS transactions, DB2 tables, and JCL scripts to… more
    Nelnet (12/04/25)
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  • Mainframe Modernization Solution Architect

    Rocket Software (Denver, CO)
    …technical experience with mainframe, non-x86 legacy systems and with technologies such as COBOL , JCL, CICS, DB2 for z/OS, IMS DB/DC, Assembler, PL/I, REXX, ... emulation, automated code conversion, and re-platforming. + Experience with COBOL modernization and porting application code across platforms. + Hands-on… more
    Rocket Software (11/27/25)
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