About the Role:
We are seeking a highly skilled Mainframe / Infra Tech Lead to architect, manage, and optimize enterprise mainframe and infrastructure environments. This is a hands-on technical leadership role, responsible for driving modernization, automation, and high availability across both mainframe and distributed systems.
Key Responsibilities:
· Oversee and optimize mainframe infrastructure (IBM z/OS, CICS, DB2, IMS, RACF) and core IT systems (Windows, Linux, VMware, networking, storage).
· Lead technical troubleshooting and root cause analysis for complex incidents.
· Monitor system health and performance using enterprise-grade mainframe tools: Omegamon, CA OPS/MVS, BMC MainView.
· Analyze and forecast resource utilization (CPU, I/O, storage), ensuring SLA compliance.
· Design and maintain automated job scheduling workflows (CA-7, Control-M, IBM Tivoli Workload Scheduler).
· Implement automation and Infrastructure-as-Code (IaC) using Ansible, REXX, JCL, Python, Shell.
· Architect and maintain high availability and disaster recovery solutions (GDPS, Sysplex Concepts, Parallel Sysplex).
· Drive mainframe modernization: DevOps (Git, Jenkins, UrbanCode Deploy), hybrid cloud integration (AWS, Azure, IBM zCloud), and open source on Z (Python, Node.js, Java, OpenShift).
· Leverage AI/ML tools (IBM Watson) for analytics and real-time detection on z/OS.
· Mentor and guide engineering teams, ensuring best practices in performance, capacity, and security.
Most Critical Skills:
· Deep expertise in IBM mainframe systems: z/OS, CICS, DB2, IMS, RACF.
· Mainframe monitoring tools: Omegamon, CA OPS/MVS, BMC MainView.
· Infrastructure management: Windows Server, Linux (RHEL, SUSE), VMware vSphere, Hyper-V, networking (TCP/IP, SNA), SAN/NAS storage.
· Automation & scripting: Ansible, REXX, JCL, Python, Shell.
· Job scheduling: CA-7, Control-M, IBM Tivoli Workload Scheduler.
· High availability & DR: GDPS, Sysplex, Parallel Sysplex, failover testing.
· DevOps & Modernization: Git, Jenkins, UrbanCode Deploy, hybrid cloud (AWS, Azure, IBM zCloud), open source (Python, Node.js, Java, OpenShift).
· AI/ML on Z: IBM Watson, machine learning for analytics and fraud detection.
· Security & compliance: RACF/ACF2/Top Secret, SOX, GDPR.
· Leadership: Proven ability to lead technical teams and manage large-scale infrastructure projects.
· Bilingual communication: English and Japanese, with strong technical documentation skills.
Preferred Qualifications:
· 8+ years of hands-on experience with IBM mainframe and enterprise infrastructure.
· Experience with ITIL processes, change management, and incident response frameworks.
· Strong analytical, troubleshooting, and mentoring skills.
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