• Senior Mainframe Developer

    GovCIO (Denver, CO)
    **Overview** GovCIO is currently hiring for Senior Mainframe Developer to perform maintenance, remediation's, and updates to mission critical applications used ... USD $160,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6700/senior- mainframe - developer /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6700_ **Category** _Software… more
    GovCIO (09/17/25)
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  • IT Mainframe Developer - Contract…

    Nelnet (Breckenridge, CO)
    …people where they live, learn, and work. We are seeking experienced Mainframe Developers to support state workforce agency's initiative to expand Unemployment ... programs and rebind DB2 packages as needed. + Conduct developer unit testing and support user acceptance testing (UAT)....Science **EXPERIENCE:** + Minimum 5 years of experience in mainframe development. + Proficiency in: COBOL (batch and online)… more
    Nelnet (12/04/25)
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  • Java - Mainframe Programmer

    GovCIO (Denver, CO)
    **Overview** GovCIO is currently hiring for Java - Mainframe Developer to perform maintenance, remediation's, and updates to mission critical applications used ... support the DCSA background investigation processes. The position does not require legacy/ mainframe experience, but candidates MUST to be open to learning the… more
    GovCIO (11/07/25)
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