• Mainframe Applications Development Sr…

    Citigroup (New Castle, DE)
    …ability to use debugging tools and techniques to identify and resolve issues. ** Performance Tuning:** + Experience in optimizing mainframe applications for ... file fomatting. **Key Responsibilities** + Develop, maintain, and enhance mainframe applications. + Analyze business requirements and design technical solutions.… more
    Citigroup (08/01/25)
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  • Senior Mainframe System Programmer (z/OS)

    Fiserv (Frankfort, KY)
    …devices, Catalogs, Coupling Facilities, and Sysplexes. + Relevant certifications in mainframe technologies and performance management. + In-depth knowledge of ... come make a difference at Fiserv. **Job Title** Senior Mainframe System Programmer (z/OS) **About your role:** The z/OS...and project support needs. + Work with capacity and performance teams in proactively addressing potential performance … more
    Fiserv (07/12/25)
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  • Senior Mainframe Infrastructure Engineer…

    Truist (Raleigh, NC)
    …mainframe automation solutions. 8. Keen understanding of factors that improve mainframe infrastructure availability and performance . 9. Knowledge of ... for someone that excels in modernizing infrastructure, optimizing system performance and delivering innovative technologies to drive transformative business… more
    Truist (07/14/25)
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  • Manager, Mainframe Technical Consulting

    Broadcom (Lisle, IL)
    …This position is responsible to plan, execute, monitor and manage the Mainframe Technical Consulting team's performance and resource allocation needs, with ... effectively drives and supports the technical validation and adoption of the Broadcom Mainframe products. Ensuring that the mainframe solutions are presented in… more
    Broadcom (07/23/25)
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  • IBM Mainframe Developer (Hybrid)

    Cognizant (Cleveland, OH)
    …domain** . + Oversee development and maintenance of applications using **IBM Mainframe Utilities** , ensuring optimal performance and reliability. + Provide ... **IBM Mainframe Developer ( Hybrid)** Job Summary We are...solutions. + Support team development through mentoring, training, and performance feedback. Qualifications & Skills + **9-12 years** of… more
    Cognizant (08/28/25)
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  • Mainframe Engineer

    Insight Global (Cincinnati, OH)
    …This individual will be responsible for ensuring the stability, scalability, and performance of mainframe systems through expert-level engineering and support. ... Job Description A large financial organization is seeking a Mainframe Engineer for a contract opportunity through the end of the year (with a likelihood for… more
    Insight Global (08/22/25)
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  • Senior Mainframe Storage Systems Programmer

    M&T Bank (Clanton, AL)
    …This role is critical to ensuring high availability, data integrity, and performance across our mainframe infrastructure. Key Responsibilities + Provide weekend ... most skilled and creative workers to solve complex problems, architect solutions, write high- performance software, and chart our new path, all to make the lives of… more
    M&T Bank (08/16/25)
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  • Mainframe Systems Administrator- z/OS

    Cognizant (Hartford, CT)
    …team. In this role, you will be responsible for maintaining and optimizing mainframe systems to ensure high availability, performance , and reliability. You will ... engineering, and vendor teams to support incident resolution, system upgrades, and performance tuning across critical environments. **In this role, you will:** .… more
    Cognizant (08/22/25)
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  • Mainframe Systems Manager

    City of New York (New York, NY)
    …to the SLA. - Provide a leadership role in z/OS administration, performance management, hardware configuration, and implementation of mainframe technologies and ... and capacity data. - Perform daily, monthly and yearly performance and capacity planning for the mainframe ...yearly performance and capacity planning for the mainframe systems. PROJECT PLANNING: - Run projects related to… more
    City of New York (07/23/25)
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  • Senior Quality Assurance Specialist - Automated…

    PNC (Dallas, TX)
    …based on business and technical requirements for both Java and mainframe applications. -Collaborate with developers, business analysts, and project managers to ... applications built using Spring Boot and REST APIs. -Execute tests for mainframe systems, including COBOL-based applications and JCL job flows. -Design and maintain… more
    PNC (08/14/25)
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