Senior Mainframe Systems Engineer

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Senior Mainframe Systems Engineer

By / September 3, 2026

• Location: Dearborn, Michigan
• Type: Contract
• Job #106602

Job Title: Senior Mainframe Systems Engineer

Location: Dearborn, MI.

Job Type: W2 CONTRACT | NO C2C | NO CORP-TO-CORP

Expected hours per week: 40 hours per week

Schedule: remote

Job Description:

Position Description: Employees part of this function are responsible for building and operating IT hardware and software resources in on-prem, cloud or hybrid scenarios in support of internal customer needs. They are responsible for a wide variety of activities that operationalize cross functional teams such as capacity planning and resource optimization solutions for one-off and long-term workloads, planning, configuring and maintaining servers (including mainframes), creating virtualized environments, providing analytics services, installing and maintaining specialized tools, etc Key Responsibilities 1. Involved in the design, operation, and maintenance of enterprise servers, including specialty mainframe systems like IBM/LPARS, high performance super computing systems, and general-purpose hybrid and cloud systems, for optimal end-user business operations. 2. Research, design, implement and maintain complex infrastructure solutions for internal customer needs such as specialty software, data warehouses, identity access management, event frameworks, containerization and on demand scaling, etc. 3. Design and configure secure virtualized environments aligned with enterprise architecture blueprints consisting of virtual machines, virtual networks, high speed and distributed storage systems (SAN, HDFS, SSD, etc.) 4. Utilize existing tools or assist in engineering custom monitoring solutions to ensure systems are configured correctly, run efficiently and remain secure against potential threats. 5. Monitor and review resources like CPU, memory, storage, and network traffic to ensure effective utilization aligned with expected parameters and to safeguard against runaway costs. 6. Resolve bottlenecks and plan for future capacity needs based on resource usage trends. Advise enterprise architecture teams on usage trends to incorporate into future blueprints. Skills Required: Mainframe Systems Skills Preferred: Z/OS Experience Required: Senior Engineer Exp: Prac. In 2 coding lang. or adv. Prac. in 1 lang.; guides. 10+ years in IT; 8+ years in development Experience Preferred: Eight or more years of System Programming experience, including dump analysis, SMP/E, SMF, USS, Omegamon, MVS and JES exits, problem analysis and resolution. Working knowledge of z/Operating System internals in JES2 or JES3 environments. Experience in planning, customizing, testing and on-going support of Independent Software Vendor (ISV) products (i.e. CA Technologies, BMC, SAS, IBM, etc.) Knowledge and experience in corporate and group security and control policies, procedures, and standards. Experience supporting Disaster Recovery for z/OS environment. Excellent verbal and written communication skills, highly motivated, and possess excellent analytical and problem-solving skills. Proficient with Microsoft Word and Excel. Experience with Access, PowerPoint and Microsoft Project for project administration are highly desirable Working knowledge of ISPF, TSO, JCL and IBM utilities is essential. Candidates must be willing and able to work overtime which includes all shifts, weekends, and holidays. Education Required: Bachelor's Degree Additional Information : Remote Position Install, customize, test, implement, document, and support independent software vendor (ISV) products as required (this includes user modifications that require customization for release levels or related to site requirements) and work with the vendors on problems and resolution. Code in Assembler to develop, test, implement, document and support system modifications and MVS and JES exits. Analyze, debug and correct various z/OS software problems. Support z/OS Unix System Services (USS) and WebSphere environments. Use IBM's ServiceLink and interface with IBM technical support to resolve Operating System (z/OS) software and hardware problems. Proficient in Assembler, REXX, Clist and SAS coding (highly desired). Knowledge of RACF and ability to create and analyze RACF profiles. Provide system-programming support for the installation and upgrade of mainframe hardware configurations. Provide off hours support for Disaster Recovery planning and testing. Able to provide 24 hours support 7 days per week 365 days per year (rotational duty) for software issues. Provide customer support by addressing Software/Hardware related trouble tickets providing levels 1, 2 and 3 support. Other duties as assigned.

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