• Senior Mainframe Developer (Healthcare…

    Cognizant (Jefferson City, MO)
    …to be considered** + Minimum of 8+ years of experience in mainframe development, Mainframe COBOL , JCL, DB2 , VSAM and CICS. + Proficiency in working with ... Design, develop, test, and debug mainframe applications, often involving COBOL , JCL, DB2 , VSAM and CICS. Mentor and guide junior developers in coding… more
    Cognizant (12/17/25)
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  • IT Mainframe Developer - Contract Role (AN)

    Nelnet (Jefferson City, MO)
    …(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 ... and minimal disruption to operations. **JOB RESPONSIBILITIES:** + Analyze COBOL programs, CICS transactions, DB2 tables, and...Science **EXPERIENCE:** + Minimum 5 years of experience in mainframe development. + Proficiency in: COBOL (batch… more
    Nelnet (12/04/25)
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  • Mainframe Modernization Solution Architect

    Rocket Software (Jefferson City, MO)
    …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, ... **Job Description Summary:** We are looking for a highly skilled Mainframe Modernization Solutions Architect to analyze, design, architect, and implement solutions… more
    Rocket Software (11/27/25)
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  • Sr. Software Engineer ( Mainframe

    US Bank (Earth City, MO)
    …to six years of relevant experience **Preferred Skills/Experience** + Expert level knowledge of ** COBOL , JCL, CICS, DB2 , and CA7.** + Familiar with Agile and ... DevOps concepts and tools such as **Jira, Jenkins, and Git** + Technical expertise and leadership skills to resolve issues, ensure product goals are met, and serve as a mentor to coach and support junior engineers + Technically proficient and able to define… more
    US Bank (11/25/25)
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  • IT Quality Assurance Analyst - Contract Role (AN)

    Nelnet (Jefferson City, MO)
    …Strong understanding of mainframe systems and testing methodologies. + Experience with: COBOL , CICS, DB2 , JCL, 3270 emulator tools (eg, OpenText Hummingbird), ... developers and business analysts to design and execute test plans for COBOL , CICS, DB2 , and batch components. . Perform unit, integration, regression, and user… more
    Nelnet (12/03/25)
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