• Senior COBOL Developer

    Koniag Government Services (Wright Patterson AFB, OH)
    …HTML-5 capable browsers** + **Strong understanding of mainframe architecture and operating systems ( z / OS , MVS)** + **Experience with batch processing and ... This role is critical in maintaining and enhancing legacy systems while supporting modernization initiatives within production and potential development/testing… more
    Koniag Government Services (09/26/25)
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  • Technical Support Engineer

    IBM (Tucson, AZ)
    …and professional experience** * Experience with z / OS or other mainframe environments * Familiarity with operating system concepts (eg, memory management, ... technical expertise in your assigned specific area of the z / OS system , staying current with...and curiosity make a real impact? We're looking for az/ OS Systems Support Engineer to join our… more
    IBM (10/06/25)
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  • Technical Support Professional

    IBM (Durham, NC)
    …professional experience** Preferred Requirements Knowledge of or experience using the MVS / z / OS mainframe operating system concepts Working knowledge ... Above all, we are looking for applicants who will thrive in an open , vibrant, flexible, fun-spirited, collaborative environment and desire creative freedom and an… more
    IBM (09/30/25)
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  • Apps Development Sr Manager

    Citigroup (New Castle, DE)
    …Utilities** : + **Operating Systems ** : Strong knowledge of mainframe operating systems such as IBM z / OS , and potentially z /Linux. + ... may also be required. + ** Mainframe Systems and...is beneficial. + **Tools** : Experience with TSO/ISPF, MQ, z / OS API's, OPC Schedular, and Change man.… more
    Citigroup (08/08/25)
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  • Software Engineer III--Distributed Systems

    Truist (Atlanta, GA)
    …**- Distributed (Java, OpenShift, AWS, SQL, Middleware services, JSON, etc.)** + **Secondary** - Mainframe (COBOL, JCL, DB2, CICS, Z / OS Connect, etc.) + ... Production Support area, participate in delivering technically complex solutions. Perform system integration support for all project work. Consult and partner with… more
    Truist (10/09/25)
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  • Principal Systems Programmer

    Rocket Software (Waltham, MA)
    …be working with a team of engineers from around the globe who are focused on providing z / OS , z /VM & z /Linux infrastructure in support of Rocket's R&D ... looking for a Principal Programmer to join our IT Mainframe Services team and grow with us! You will...community. Our team supports over 150 z / OS environments running native and under … more
    Rocket Software (09/02/25)
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  • Infrastructure Engineer

    American Express (Sunrise, FL)
    …and implementation** of modern mainframe infrastructure solutions with a focus on z / OS , z /Linux, and hybrid integration. + Support senior engineers in ... Do you thrive on solving complex infrastructure challenges in z / OS , storage, and performance tuning - and...and performance tuning - and want to keep critical mainframe systems running at peak reliability? Come… more
    American Express (10/11/25)
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  • Computer Associates' Top Secret Security product…

    General Dynamics Information Technology (Fairfax, VA)
    …Other **Job Family:** IT Infrastructure and Operations **Skills:** CA Top Secret,IBM z / OS ,Security Tools **Experience:** 7 + years of related experience **US ... currently seeking a Computer Associates' Top Secret Security product Systems Administrator . Responsibilities: * Provide mentor level support...below: * In-depth knowledge of CA Top Secret for z / OS and provide the ability to externalize… more
    General Dynamics Information Technology (10/15/25)
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  • Systems Admin Sr. Specialist Advisor

    NTT America, Inc. (Austin, TX)
    …interdependenciesExcellent customer-facing skills. (At a technical and layman's level).Proficiency in supporting z / OS , JES2, CICS or RACF is a plus **Academic ... experience..Undergraduate/bachelor'sdegree **Required Experience:** + Requires 10+ years' experience/proficiency with Mainframe DB2 Systems software + Experience installing… more
    NTT America, Inc. (08/08/25)
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  • Database Administrator

    CAI (Trenton, NJ)
    …+ Support MFAAS on IBM Cloud and Mainframe relocation + Provide weekend support for z / OS upgrade **What you'll need** + 5+ years as an ADABAS Systems DBA ... level! If you have 5+ years as an ADABAS systems DBA, implementing physical DB structures in ADABAS, and...Logical/physical DB design experience + MFAAS support on IBM systems **Physical Demands** + Ability to safely and successfully… more
    CAI (09/27/25)
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