Senior Mainframe Programmer - Robert Half

We are looking for a Senior Mainframe Programmer to join our team in New Haven County, Connecticut, and provide critical support for our mainframe systems. This role involves ensuring the stability, functionality, and performance of hardware and software components within a z/OS and DB2 mainframe environment. As part of a small, specialized team, you will take ownership of complex technical challenges and contribute to the ongoing maintenance and optimization of our systems.

Responsibilities:

Install, configure, and maintain mainframe software, including z/OS, DB2, and other related products.

Troubleshoot system issues and provide timely resolutions to ensure uninterrupted operations.

Manage hardware and software upgrades, ensuring compatibility and improved performance.

Implement and maintain security measures to safeguard data and system integrity.

Perform regular system monitoring and optimization to enhance efficiency and reliability.

Oversee business continuity planning and execute semi-annual testing to ensure preparedness.

Manage file systems and storage solutions, including FlashCopy and replication using Copy Services Manager.

Collaborate with stakeholders to support technology initiatives and system enhancements.

Document processes and technical configurations to ensure clear communication and knowledge sharing.

Stay updated on new technologies and apply them to improve system capabilities.

Requirements

Proven experience with z/OS operating systems, DB2 mainframe, and CICS system environments.

Strong knowledge of mainframe hardware and associated management tools.

Expertise in mainframe file systems, including PS and VSAM.

Familiarity with mainframe communication methods such as Enterprise Extender and TCP/IP.

Hands-on experience with system security concepts and their practical application.

Ability to perform hardware generation and configuration tasks effectively.

Excellent problem-solving skills and the ability to work independently in a fast-paced environment.

Strong verbal and written communication skills for interaction with internal and external stakeholders.

Technology Doesn't Change the World, People Do.

Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.

Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more.

All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.

2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use.

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