Worldpay
Fintech • B2B • B2C
Worldpay is a global leader in payment processing solutions, powering transactions across the globe and driving economic opportunities. With a presence in over 25 countries and 18 key office hubs, Worldpay provides innovative digital payment products and solutions that simplify complex transactions and add value. The company is committed to a collaborative and inclusive culture, focusing on customer experience, technology development, and strategic growth. Worldpay's diverse teams, including product and technology, commercial and sales, and customer experience, work synergistically to transform the payment industry, emphasizing flexibility, initiative, and collective success.
Senior Director, Head of Mainframe
Job not on LinkedIn
Yesterday
Worldpay
Fintech • B2B • B2C
Worldpay is a global leader in payment processing solutions, powering transactions across the globe and driving economic opportunities. With a presence in over 25 countries and 18 key office hubs, Worldpay provides innovative digital payment products and solutions that simplify complex transactions and add value. The company is committed to a collaborative and inclusive culture, focusing on customer experience, technology development, and strategic growth. Worldpay's diverse teams, including product and technology, commercial and sales, and customer experience, work synergistically to transform the payment industry, emphasizing flexibility, initiative, and collective success.
đź“‹ Description
• Responsible for the architecture, engineering, resilience, and operational excellence of the enterprise IBM mainframe and HPE Non-Stop ecosystem. • Oversees high-availability IBM Z and HPE Non-Stop platforms supporting mission-critical workloads. • Drives modernization across z/OS, middleware, storage, automation, and integration layers. • Provides technical subject matter expertise while guiding a team of senior system programmers, engineers, and reliability specialists. • Owns the technical architecture for z/OS infrastructure, Sysplex design, WLM policies, and enterprise capacity strategies. • Leads engineering initiatives across subsystems (CICS, Db2, IMS, MQ, VTAM/Enterprise Extender, JES2/3). • Serves as the highest-level escalation for performance anomalies, IPL issues, contention, and Sysplex coupling facility (CF) tuning. • Oversees RMF/SMF analysis and implement performance improvements for CPU, I/O, memory, and CF structures. • Ensures optimal configuration of z/OS 3.x-level features including security, resiliency, and AI-assisted workload optimization. • Leads root-cause analysis for SEV1 incidents and directs long-term remediation to enhance platform stability. • Leads capacity planning across CPU, CF, DASD, tape virtualization, and network layers. • Optimizes MLC/MSU usage through WLM tuning, workload shaping, and vendor negotiation strategies. • Manages tooling including OMEGAMON, RMF, SMF, zSecure, BMC MainView, CA OPS/MVS, and automation engines. • Guides transformation initiatives to expose mainframe assets through REST APIs, message queues, and event-driven architectures. • Drives Git, CI/CD, and automated deployment integration for mainframe code pipelines. • Evaluates and adopts new IBM Z technologies, such as AI-driven workload optimization or Z hardware accelerators. • Leads and mentors senior systems programmers, automation engineers, and platform architects.
🎯 Requirements
• 15+ years hands-on mainframe infrastructure experience, with 10+ years in leadership roles. • Mastery of z/OS internals (storage management, dispatching, catalog structure, UNIX System Services). • Deep experience with sysplex configuration, CF structure tuning, XCF, WLM, HCD/IODF, and I/O subsystem design. • Expert-level knowledge of at least two major subsystems: CICS TS, Db2, IMS, MQ, JES2/3. • Strong background in RACF administration, ICSF, cryptographic hardware, and enterprise security frameworks. • Demonstrated success leading modernization initiatives (APIs, DevOps for Z, hybrid cloud integration). • Experience with multi-site GDPS architectures or similar HA/DR frameworks is a bonus. • Hands-on experience with z/OSMF, Ansible for Z, and automated provisioning frameworks is a bonus. • Background in capacity planning and MLC optimization is a bonus. • Familiarity with container frameworks (zCX, Linux on Z) or virtualization (z/VM) is a bonus. • Industry certifications (IBM Z Specialist, ITIL, CISSP, or equivalent) is a bonus. • Experience delivering programs in highly regulated industries, such as financial services or payments is a bonus. • Hands-on involvement in discovery, planning and lift-and-shift execution with third-party migration vendors is a bonus. • Strong commercial acumen supporting cost tracking, vendor management and contract governance.
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