• z / OS Mainframe

    System One (Bethesda, MD)
    z / OS Mainframe Systems Programmer Location: Remote (must be in US / EST Hours) Pay Rate: $60-$68/h w/ conversion salary of 125k Public Trust Required ... Responsibilities: DMI, LLC is seeking az/ OS Mainframe Systems Programmer to join us. The z / OS Mainframe Systems Programmer will provide full… more
    System One (10/07/25)
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  • Senior Mainframe System Programmer…

    Fiserv (Bethesda, MD)
    …technologies and performance management. + In-depth knowledge of mainframe architecture, operating systems (eg, IBM z / OS ), and job control languages (eg, ... come make a difference at Fiserv. **Job Title** Senior Mainframe System Programmer ( z / OS ) **About...software tools. This position is responsible for supporting existing z / OS systems while ensuring adherence… more
    Fiserv (09/05/25)
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  • Expert Mainframe Systems Programmer-…

    Ensono (Washington, DC)
    …Areas of Focus for this Role + Installation and maintenance of Mainframe Systems Infrastructure software (including z / OS and/or ISV products) in support ... Expert Mainframe Systems Programmer- zOS LCMRemote -...of systems software, Functional knowledge, use of z / OS components and detailed knowledge of support… more
    Ensono (09/09/25)
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  • Mainframe Systems Programmer, DB2

    Ensono (Washington, DC)
    …include five years of experience working within az/ OS environment. Familiarity with mainframe functional areas such as z / OS Operating System, Storage, ... Mainframe Systems Programmer, DB2Remote - United... Mainframe Systems Programmer, DB2Remote - United StatesJR012329 At Ensono,...on zOS and related ISV software products on the z / OS platform. + This includes experience with… more
    Ensono (09/19/25)
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  • Mainframe System Programmer/Hardware…

    Ensono (Washington, DC)
    …working within az/ OS environment supporting Tape, DASD, CPU, and other mainframe hardware equipment. + Experience creating HCD and IOCP for zOS, zVM, and ... Mainframe System Programmer/Hardware ConfigurationRemote - United StatesJR011978 ...and business requirements. + Above average knowledge of the z / OS operating system. + Familiarity with tape… more
    Ensono (09/17/25)
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  • Senior Mainframe Systems Programmer…

    Ensono (Washington, DC)
    Senior Mainframe Systems Programmer - AutomationRemote - United StatesJR012303 **Position Summary** The Senior Mainframe Systems Programmer provides ... with technical questions and problem resolution. Functional knowledge of z / OS Opsmvs or z /SA Automation...+ Ability to perform skill set of an Automation Mainframe System Programmer + Ability to perform complex Automation… more
    Ensono (09/25/25)
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  • Senior Mainframe Systems Programmer…

    Ensono (Washington, DC)
    Senior Mainframe Systems Programmer - zVMRemote - United StatesJR012366 A...+ Linux on IBM Z + VSEn and z /VSE + CMS + z / OS + Ability ... Senior IBM z /VM Systems Programmer ensures the stability, integrity, and efficient operation of information systems that support core organizational… more
    Ensono (10/07/25)
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  • Senior Mainframe Engineer- System…

    Navy Federal Credit Union (Vienna, VA)
    …support teams and subject matter experts. + Install, maintain, and administer z / OS operating system releases and other IBM mainframe 3rd party software ... Overview The Senior Mainframe Engineer role is accountable for research, evaluation,...and other automation tooling. + Varying experience with: - z / OS - GDPS/PPRC (MM/GM/GC/LCP/SGC) - DASD Management… more
    Navy Federal Credit Union (10/10/25)
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  • Mainframe Systems Programmer - TSS

    Ensono (Washington, DC)
    Mainframe Systems Programmer - TSSRemote - United StatesJR011715 Position Summary The Mainframe System Programmer of Technical System Services primary duty ... to respond to problem calls from operations, or other mainframe support teams. + Research reported issues to determine...+ Position requires 5 - 10 yrs. Supporting MVS z / OS system environments working with components, subsystems,… more
    Ensono (07/14/25)
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  • Mainframe Systems Programmer - CICS

    Ensono (Washington, DC)
    Mainframe Systems Programmer - CICSRemote - United StatesJR011666 **Position Summary** Provide premium software support and services to Ensono mainframe ... this Role** + Fulfill customer service requests (CSRs) for mainframe CICS customers in a timely manner as they...Upgrading, maintaining, enhancing or providing new options to applicable z / OS products within any given customer partition.… more
    Ensono (10/06/25)
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  • Senior Mainframe Systems Programmer

    Ensono (Washington, DC)
    …the Maintenance and debugging of systems software.. Functional knowledge, use of z / OS components and detailed knowledge of support products such as tape ... Senior Mainframe Systems ProgrammerRemote - United StatesJR012292 **Position Summary** The Senior Mainframe Systems Programmer provides support for… more
    Ensono (09/06/25)
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  • Sr. Mainframe Automation Systems

    Ensono (Washington, DC)
    …Tools such as Jira or Bugzilla (Scrum and Kanban Boards) + Mainframe Operating systems and their sub-components - z / OS , MVS + Software packaging and ... Sr. Mainframe Automation Systems ProgrammerRemote - United...Assembler + Code hosting platforms for version control and source code management such as Github + Software Development… more
    Ensono (09/06/25)
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  • Mainframe CICS/IMS Systems

    Travelers Insurance Company (Washington, DC)
    …all aspects of the evaluation, configuration, security, implementation, and support of CICS, IMS, z / OS Connect, TPX, CA GEN, EOS and other software for multiple ... experience with installing, migrating, supporting, and troubleshooting IMS, CICS, and z / OS Connect. Under limited supervision, demonstrates a comprehensive… more
    Travelers Insurance Company (08/01/25)
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  • Mainframe Security Engineer

    Ensono (Washington, DC)
    …Summary:** **This is a Mainframe Security Administration position, working on IBM z / OS operating systems . Experience using TSO, JCL, ISPF, JES2, and ... Mainframe Security EngineerRemote - United StatesJR011549 **About the...IAM, MFA and PAM is desired. **General Knowledge:** + z / OS experience is highly desired + PC… more
    Ensono (09/20/25)
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  • Mainframe Developer

    System One (Rockville, MD)
    …180k Contractor Work Model: Onsite ALTA IT Services is seeking a highly experienced Z / OS Mainframe Developer with deep expertise in Assembler, COBOL, and ... + TSO/ISPF + Extensive hands-on experience with Assembler, COBOL, and CICS in aZ/ OS Mainframe environment + Strong coding skills with proven adherence to… more
    System One (09/03/25)
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  • Mainframe Network Engineer

    Travelers Insurance Company (Washington, DC)
    …AT-TLS, certificate renewals, encryption key management and activation, as well as other z / OS supporting tools. + Evaluates systems specifications regarding ... aspects of the evaluation, configuration, security, implementation, and support of the z / OS operating system, RACF, disk/tape storage and subsystems, and… more
    Travelers Insurance Company (08/01/25)
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  • IAM Mainframe Information Security Controls…

    Bank of America (Washington, DC)
    …of experience with Mainframe security administration (RACF) + Strong knowledge of z / OS mainframe environment, TSO/ISPF, JCL and security related exits + ... IAM Mainframe Information Security Controls Specialist (RACF experience required)...Information Security (GIS) is responsible for protecting bank information systems , confidential and proprietary data, and customer information. GIS… more
    Bank of America (10/01/25)
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  • ADABAS Database Specialist/DB2

    System One (Bethesda, MD)
    …implementing, and maintaining Software AG's (SAG) suite of ADABAS products in an enterprise z / OS mainframe environment. This role is critical to ensuring the ... CICS Natural applications in CICSPlex environments. + Strong background in maintaining z / OS operating systems and IBM CICS parameters for optimized… more
    System One (10/04/25)
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  • Software Quality Assurance Testers

    Guidehouse (New Carrollton, MD)
    …tools such as Selenium, JMeter, LoadRunner, SOAPUI, and Parasoft. + Working knowledge of mainframe environments (eg, IBM z / OS , Unisys), JCL, and scripting. + ... methodologies. + Exposure to enterprise platforms including Windows, Linux, UNIX, and mainframe systems . + Experience working with relational databases such as… more
    Guidehouse (09/28/25)
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  • COBOL Developer

    Koniag Government Services (Chantilly, VA)
    … terminal emulation tools + Understanding of mainframe architecture and operating systems ( z / OS , MVS) + Experience with batch processing and online ... This role is critical in maintaining and enhancing legacy systems while supporting modernization initiatives within production and potential development/testing… more
    Koniag Government Services (10/03/25)
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