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Z​/OS Migration Expert

Remote / Online - Candidates ideally in
Wisconsin, USA
Listing for: Unisys
Full Time, Remote/Work from Home position
Listed on 2026-01-02
Job specializations:
  • IT/Tech
    Systems Engineer, IT Support
Job Description & How to Apply Below
z/OS Migration Expert page is loaded## z/OS Migration Expert locations:
Remote, TX, United States of America time type:
Full time posted on:
Posted Todayjob requisition :
REQ
570277
** What success looks like in this role:
** Our organization is seeking an experienced z/OS expert to support a major mainframe modernization initiative. This project involves migrating legacy z/OS mainframe applications and 3rd party system applications.  The ideal candidate will have deep technical expertise in z/OS environments, hands-on experience with large-scale migrations, and a passion for mainframe transformation.
** Key Responsibilities
*** Lead or support the migration of applications, batch jobs, and system utilities from legacy z/OS, including codebase analysis, JCL conversion, and workload scheduler integration.
* Participate in the creation and cloning of “Golden Image” LPARs for Dev, Test, and Prod environments on z/OS v3.1.
* Oversee or assist with the installation and configuration of IBM software suites (e.g., Auto Binary Optimizer, Migration Utility, Workload Scheduler, Enterprise COBOL, Security Server with RACF/zSecure).
* Analyze and assist to remediate legacy code (Assembler, COBOL, FORTRAN, RPG, Easytrieve) for compatibility and performance on z/OS.
* Support the conversion of FORTRAN and RPG modules to COBOL v6.4.
* Collaborate with application teams to identify and retire redundant code and batch jobs.
* Assist with migration of security rules from Broadcom’s ACF2 and Top Secret to IBM RACF, including rule rewrites and RBAC alignment.
* Assist with migration of batch scheduling from PCS and Control-M to IBM Workload Scheduler (IWS).
* Support the transition to a CI/CD pipeline using GIT and IBM-based tools, including the decommissioning of Panvalet and CONDOR.
* Assist with SMF data analysis to optimize performance and resource utilization on z/OS.
* Document migration processes, best practices, and lessons learned.
* Participate in post-migration hypercare, troubleshooting, and stabilization activities for each division’s cutover.
** You will be successful in this role if you have:
**** Required Qualifications
*** 7+ years of hands-on experience with IBM z/OS mainframe environments.
* Experience with z/VSE highly desirable.
* Strong proficiency in COBOL, JCL, Assembler, and experience with FORTRAN, RPG, and Easytrieve.
* Deep knowledge of IBM mainframe utilities, LPAR management, and SMPE.
* Experience with IBM RACF, ACF2, Top Secret, and security migrations.
* Familiarity with IBM Workload Scheduler, batch scheduling, and CI/CD pipelines.
** Soft Skills
*** Excellent troubleshooting and analytical skills.
* Strong documentation and communication abilities, both written and verbal.
* Collaborative team player who works effectively with cross-functional teams and external partners.
* Ability to mentor and train others, sharing knowledge and best practices.
* Adaptable and flexible in a dynamic project environment.
* Strong organizational skills and attention to detail.
* Proactive problem-solver with a commitment to quality and continuous improvement.
** Preferred Qualifications
*** Experience with DOCET/EV, Panvalet, CONDOR, and third-party mainframe tools.
* Prior involvement in large-scale mainframe modernization or consolidation projects.
* Exposure to regulatory compliance in insurance or financial services environments.
** Additional Requirements
*** Must be eligible to work in the United States and pass background checks as required.
* Willingness to participate in onsite and remote work as project needs dictation.
* Commitment to knowledge transfer and mentoring of IT staff.
** MUST BE LOCATED IN TEXAS TO GET TO CLIENT SITE WHEN NEEDED   
*** Unisys offers an outstanding benefits package, featuring unlimited paid time off, a 401(k) plan, comprehensive healthcare, HSA matching, ongoing learning opportunities, and more! We’re committed to supporting work-life balance and investing in your future success.
** At Unisys, we incorporate video interviews as a key part of our hiring process. This allows us to get to know you better and provide a more engaging and convenient interview experience. We appreciate your understanding and…
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