Senior Mainframe Systems Engineer

Our client, a leading organization in the technology sector, is seeking a dedicated and experienced Senior Mainframe Systems Engineer to join their dynamic team. As a Senior Mainframe Systems Engineer, you will be an integral part of the Mainframe Operations Department supporting enterprise-level mainframe infrastructure. The ideal candidate will demonstrate strong problem-solving skills, excellent communication, and a proactive approach to system optimization, which will align successfully in the organization.

Job Title: Senior Mainframe Systems Engineer

Location: Plano, Charlotte, Pennington, Jersey City, Chandler AZ (Hybrid)

• Design, engineer, and maintain z/OS platform tools and services in accordance with enterprise standards, governance, and security policies
• Provide subject-matter expertise in z/OS infrastructure, supporting application, infrastructure, and engineering teams with technical consultation and best practices
• Translate business and operational requirements into detailed z/OS technical designs, deployment blueprints, standards, and runbooks
• Develop and enhance automation, scripts, and tooling to improve system reliability and operational efficiency
• Create reusable templates and playbooks to standardize system builds, configurations, and ongoing operations

• Extensive experience configuring, maintaining, and supporting the z/OS operating system, including installing releases, applying maintenance, and managing PTFs, APARs, and USERMODs using SMP/E
• Proficiency in developing and maintaining system utilities, exits, and automation using REXX and Basic Assembly Language (BAL/Assembler)
• Hands-on experience administering z/OS UNIX System Services (USS), including file system management, permissions, scripting, and zFS configuration
• Experience configuring and supporting JES2, including job class definitions, initiator management, spool tuning, and workload controls
• Strong knowledge of TSO/ISPF, including panel usage, utility execution, and operational support

• Opportunity to work with cutting-edge mainframe technologies in a collaborative environment
• Engage in innovative projects that enhance enterprise system performance and reliability
• Gain valuable experience supporting high-availability, regulated enterprise environments
• Collaborate with a diverse and inclusive team of professionals
• Contribute to continuous improvement and modernization initiatives within the organization

• Medical and Prescription Drug Plans
• Dental Plan
• Vision Plan
• Health Savings Account
• Health Flexible Spending Account
• Dependent Care Flexible Spending Account
• Supplemental Life Insurance
• Short Term and Long Term Disability Insurance
• Business Travel Insurance
• 401(k), Plus Match
• Weekly Pay