Lead zOS Mainframe Systems Engineer

Lead z/OS Mainframe Systems Engineer

Location: Remote (Candidates must reside in DC, MD, VA, WV, PA, DE, NJ, or NC)
Rate: $87.12/hour W-2
Interview Process: Second-round onsite interview required in Reston, VA or Washington, DC

About the Role

We are seeking an experienced Lead z/OS Mainframe Systems Engineer to support the maintenance, modernization, security, and optimization of a large-scale IBM z/OS environment. This role is heavily focused on mainframe security, encryption, RACF administration, CyberArk integration, and platform resiliency while providing technical leadership across infrastructure initiatives.

Key Responsibilities

• Lead the design, implementation, and support of IBM z/OS mainframe infrastructure.
• Manage and enhance mainframe security, including RACF , CyberArk integration , and vulnerability remediation.
• Support data encryption initiatives for data at rest and data in transit.
• Optimize and maintain SYSPLEX environments, system resiliency, and platform availability.
• Troubleshoot complex system issues, perform root cause analysis, and support incident resolution.
• Collaborate with managed service providers and internal teams to improve operational performance and scalability.
• Provide technical guidance and leadership to cross-functional teams.

Required Qualifications

• 8+ years of experience supporting IBM z/OS environments in a SYSPLEX infrastructure.
• Strong experience with:
  • RACF Security Administration
  • z/OS Systems Programming
  • CICS TS Systems Programming
  • IBM MQ Systems Programming
  • DB2 administration/support
  • IBM System Automation
  • Control-M Batch Scheduling
  • ISV product installation and implementation
• 5+ years of cybersecurity experience, including mainframe security and ransomware mitigation.
• Experience with CyberArk integration , encryption technologies, and security compliance initiatives.
• Strong leadership, communication, and project coordination skills.

Preferred Qualifications

• Advanced SYSPLEX and ICF configuration/tuning experience.
• Experience with Sysplex decoupling projects.
• Knowledge of TCP/IP networking on mainframe platforms.
• Experience with IBM z16 hardware and Dell EMC storage environments.
• Familiarity with pervasive encryption, key management, and ransomware protection solutions for mainframes.
• Experience with Vanguard Compliance Manager.

If you are a senior mainframe engineer with deep expertise in z/OS security, infrastructure modernization, and enterprise-scale systems support, we encourage you to apply.

System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.