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Mianframe Developer

Stefanini Group · Dearborn, MI

Posted Sep 6, 2026

Job Description

Stefanini Group is hiring!

Stefanini is looking for a Mainframe Engineer, Dearborn, MI (Onsite)

For quick apply, please reach out Fardeen Ali at 248-582-6473/ fardeen.ali2@stefanini.com



You will be responsible for building and operating IT hardware and software resources in on-prem, cloud or hybrid scenarios in support of internal customer needs. You will be 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.



Responsibilities


- 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.
- 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.
- 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.).
- Utilize existing tools or assist in engineering custom monitoring solutions to ensure systems are configured correctly, run efficiently and remain secure against potential threats.
- 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.
- 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.
- 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.
- Provide customer support by addressing Software/Hardware related trouble tickets providing levels 1, 2 and 3 support.






Experience Required


- 10+ years of experience in IT and 8+ years of experience in Development.
- Mainframe Systems.




Experience Preferred


- 8 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.




Education Required



- Bachelor's degree






Education Preferred



- Master's degree








**Listed salary ranges may vary based on experience, qualifications, and local market. Also, some positions may include bonuses or other incentives***

Stefanini takes pride in hiring top talent and developing relationships with our future employees. Our talent acquisition teams will never make an offer of employment without having a phone conversation with you. Those face-to-face conversations will involve a description of the job for which you have applied. We also speak with you about the process, including interviews and job offers.



About Stefanini Group

The Stefanini Group is a global provider of offshore, onshore and near shore outsourcing, IT digital consulting, systems integration, application, and strategic staffing services to Fortune 1000 enterprises around the world. Our presence is in countries like the Americas, Europe, Africa, and Asia, and more than four hundred clients across a broad spectrum of markets, including financial services, manufacturing, telecommunications, chemical services, technology, public sector, and utilities. Stefanini is a CMM level 5, IT consulting company with a global presence. We are a CMM Level 5 company.



#LI-FA1

#LI-ONSITE



Skills:

Analysis Skills, Application Integration, Blueprints, Broadband, Business Operations, CPU (Central Processing Unit), Capability Maturity Model (CMM), Capacity Management, Communication Skills, Computer Systems, Consulting, Cross-Functional, Customer Service Software, Data Warehousing, Debugging Skills, Disaster Recovery, Distributed Computing, Enterprise Architecture, Financial Services, Fortune 1000 Customers, Government, HDFS (Hadoop Distributed File System), Hardware Configuration Management, Hardware Upgrades, Hybrid Cloud, IBM Clist Programming Language, IBM Job Entry Subsystem, IBM MVS Operating System, IBM Mainframe, IBM Product Family, IBM Rexx Programming Language, IBM Systems, IBM TSO/ISPF, IBM WebSphere Application Server, IBM z-OS Operating System, IBM z-OS Unix Operating System, Identity Data Management, Independent Software Vendor (ISV), Information Technology & Information Systems, Information Technology Consulting, Information Technology Outsourcing, Information Technology Software, JCL (Job Control Language), Mainframe Computer, Manufacturing, Memory Hardware, Microsoft Access Database, Microsoft Excel, Microsoft PowerPoint, Microsoft Project, Microsoft Word, Nearshoring, Operating Systems, Presentation/Verbal Skills, Problem Solving Skills, RACF (Resource Access Control Facility), Recruiting Strategy, Server Maintenance, Software Administration, Solid State Drive (SSD), Storage Area Network (SAN), Support Documentation, Symmetric MultiProcessing (SMP) Computing, System Integration (SI), Systems Administration/Management, Systems/Internals Programming, Technical Support, Telecommunications, Test Plan/Schedule, Trouble Tickets, Unix Operating Systems, Virtual Machine (VM), Virtualization, Writing Skills



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Stefanini, Inc



Stefanini is a global IT services company with over 24,000 employees across 77 offices in 40 countries across the Americas, Europe, Africa, Australia, and Asia. Since 1987, Stefanini has been providing offshore, onshore and nearshore IT services, including application development and outsourcing services, IT infrastructure outsourcing (help desk support and desktop services), systems integration, consulting and strategic staffing to Fortune 1000 enterprises around the world.




With a base of over 500 active clients, including more than 300 multinationals, Stefanini maintains a strong presence in industries such as financial services, manufacturing, telecommunications, chemical, services, technology, public sector, and utilities. Clients benefit from Stefanini's financial stability, sustained year-over-year growth, and zero net debt. The corporate global headquarters is located in Sao Paulo, Brazil with European headquarters in Brussels and North American headquarters in metropolitan Detroit.





Company Size:

10,000 employees or more



Industry:

Computer/IT Services



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1987



Website:

http://www.stefanini.com

Additional Details

City
Dearborn
State
Michigan
Country
US
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