Z/os Jobs

Lead the design, tuning, and support of z/OS networking and middleware (CICS, DB2, MQ, Connect:Direct) for M&T Bank, ensuring secure, high-performance, mission-critical services.

Ensono is hiring a Senior Mainframe Systems Programmer (DB2) to deliver expert z/OS DB2 systems programming, subsystem installs, and client support in a remote, no-on-call role.

Lead complex mainframe system engineering for z/VM with z/OS specialization to support Visa's global payments infrastructure and ensure reliable, secure operations.

Visa is hiring a Staff Systems Engineer (z/OS & Network) to deliver and support complex mainframe network solutions for its global payments infrastructure from a hybrid location in Highlands Ranch, CO.

Agile Defense is hiring a Principal Systems Engineer to lead engineering and administration of enterprise storage and Linux systems in support of high‑security federal missions.

Global Payments is hiring a Senior Mainframe Software Engineer in Columbus, GA to develop and support high‑availability payment systems using COBOL, IMS and DB2.

Experienced Mainframe Developer needed to design, develop and support COBOL/CICS enterprise applications for a global IT services client based in California City.

Experienced mainframe developer needed to design, code, test, and maintain COBOL-based Medicare DME systems as part of a cross-functional Agile team.

Peraton seeks an experienced mainframe Software Developer to deliver and maintain high-volume Medicare DME claims processing solutions in a remote Agile environment (preference near Windsor, MD).

Lead development of high-volume mainframe healthcare claims systems (DME/Medicare) using COBOL/CICS on z/OS for a mission-driven team based in Windsor Mill, MD.

Visa is hiring a Staff Systems Engineer with deep z/VM expertise and strong z/OS skills to support and enhance its critical mainframe infrastructure.

Experienced SME Software Developer needed to lead design and modernization of enterprise HRD applications across Natural/ADABAS, mainframe, and web platforms for a growing federal contractor.

Lead the design and development of Visa's Clearing and Settlement systems as a Staff Software Engineer, building highly scalable C/C++ solutions for global payments.

DXC Technology seeks a Mainframe Application Developer in Plano, TX to work hybrid (2 days onsite) on COBOL/CICS mainframe development, debugging, and documentation as part of a collaborative engineering team.

ATPCO seeks a Software Engineer to deliver 24x7 Tier 2 production support and maintain enterprise mainframe and distributed applications that power global travel.