JOB TITLE: Senior Mainframe Systems Engineer z/OS
WORK LOCATION: Dearborn, MI (Hybrid)
Rate: $115000/Yearly
NOTES: Prioritize candidates with 8+ years of mainframe system programming experience and strong z/OS expertise, particularly in Assembler, JCL, ISPF, TSO, JES2/JES3, RACF, USS, SMP/E, and MVS/JES exits. Screen for hands-on experience with z/OS troubleshooting, ISV products, Disaster Recovery, and 24x7 support.
Overview / Summary:
We are seeking a Senior Mainframe Systems Engineer with extensive IT and system programming experience to support enterprise mainframe environments. This role is responsible for designing, implementing, maintaining, troubleshooting, and supporting z/OS systems, software, hardware configurations, and related infrastructure.
The position will support system programming activities, infrastructure solutions, monitoring, capacity planning, disaster recovery, software implementation, and customer support across enterprise environments.
Key Responsibilities:
- Design, operate, and maintain enterprise servers, including IBM mainframe systems, high-performance computing systems, and hybrid/cloud environments.
- Research, design, implement, and maintain complex infrastructure solutions supporting internal customer needs.
- Design and configure secure virtualized environments aligned with enterprise architecture requirements.
- Utilize existing tools or assist in developing custom monitoring solutions to ensure systems are properly configured, efficient, and secure.
- Monitor CPU, memory, storage, and network resources to ensure effective utilization and appropriate resource management.
- Resolve infrastructure bottlenecks and plan for future capacity requirements based on resource usage trends.
- Advise enterprise architecture teams on resource usage trends for future infrastructure planning.
- Install, customize, test, implement, document, and support independent software vendor (ISV) products.
- Work with software vendors to troubleshoot and resolve product-related problems.
- Code in Assembler to develop, test, implement, document, and support system modifications and MVS/JES exits.
- Analyze, debug, and resolve z/OS software problems.
- Support z/OS UNIX System Services (USS) and WebSphere environments.
- Work with IBM technical support to resolve z/OS software and hardware issues.
- Create and analyze RACF profiles.
- Provide system programming support for the installation and upgrade of mainframe hardware configurations.
- Provide support for Disaster Recovery planning and testing, including off-hours support.
- Participate in rotational 24x7 support for software-related issues.
- Provide Level 1, Level 2, and Level 3 customer support for software and hardware-related trouble tickets.
- Perform other duties as assigned.
Required Qualifications
Bachelor's degree.
- 10+ years of IT experience.
- 8+ years of development experience.
- Practical experience in two coding languages or advanced practical experience in one coding language.
- Experience with mainframe systems.
- Experience with z/OS.
- 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/OS internals in JES2 or JES3 environments.
- Experience planning, customizing, testing, and providing ongoing support for Independent Software Vendor (ISV) products, including CA Technologies, BMC, SAS, and IBM products.
- Knowledge and experience with corporate and group security and control policies, procedures, and standards.
- Experience supporting Disaster Recovery for z/OS environments.
- Working knowledge of ISPF, TSO, JCL, and IBM utilities.
- Strong verbal and written communication skills.
- Strong analytical and problem-solving skills.
- Proficiency with Microsoft Word and Excel.
- Willingness and ability to work overtime, including all shifts, weekends, and holidays.
Preferred Qualifications
- Proficiency in Assembler, REXX, CLIST, and SAS coding.
- Experience with Access, PowerPoint, and Microsoft Project for project administration.
- Experience with RACF.
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