Z​/OS Migration Expert

Overview

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 dictate.
• 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 are 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 look forward to connecting with you virtually.

This role may require access to export-controlled commodities and technology. Therefore, to conform to U.S. export control regulations, applicants should be eligible for any required authorizations from the U.S. Government.

Unisys…